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Kumar P, Singh S, Gacem A, Yadav KK, Bhutto JK, Alreshidi MA, Kumar M, Kumar A, Yadav VK, Soni S, Kumar R, Qasim MT, Tariq M, Alam MW. A review on e-waste contamination, toxicity, and sustainable clean-up approaches for its management. Toxicology 2024; 508:153904. [PMID: 39106909 DOI: 10.1016/j.tox.2024.153904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2024] [Revised: 07/23/2024] [Accepted: 08/02/2024] [Indexed: 08/09/2024]
Abstract
Ecosystems and human health are being negatively impacted by the growing problem of electrical waste, especially in developing countries. E-waste poses a significant risk to ecological systems because it can release a variety of hazardous substances into the environment, containing polybrominated diphenyl ethers and heavy metals, brominated flame retardants, polychlorinated dibenzofurans and polycyclic aromatic hydrocarbons, and dioxins. This review article provides a critical assessment of the toxicological consequences of e-waste on ecosystems and human health and data analyses from scientific journals and grey literature on metals, BFRs, PBDEs, PCDFs, and PAHs in several environmental compartments of commercial significance in informal electronic trash recycling. The currently available techniques and tools employed for treating e-waste are sustainable techniques such as bioremediation, chemical leaching, biological leaching, and pyrometallurgy have been also discussed along with the necessity of implementing strong legislation to address the issue of unregulated exports of electronic trash in recycling practices. Despite the ongoing hurdles, implementing environmentally sustainable recycling methods have the potential to address the detrimental impacts of e-waste and foster positive economic development.
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Affiliation(s)
- Pankaj Kumar
- Department of Environmental Science, Parul Institute of Applied Sciences, Parul University, Vadodara, Gujarat 391760, India.
| | - Snigdha Singh
- Department of Environmental Science, Parul Institute of Applied Sciences, Parul University, Vadodara, Gujarat 391760, India
| | - Amel Gacem
- Department of Physics, Faculty of Sciences, University 20 Août 1955, Skikda, Algeria
| | - Krishna Kumar Yadav
- Faculty of Science and Technology, Madhyanchal Professional University, Ratibad, Bhopal, Madhya Pradesh 462044, India; Environmental and Atmospheric Sciences Research Group, Scientific Research Center, Al-Ayen University, Thi-Qar, Nasiriyah 64001, Iraq
| | - Javed Khan Bhutto
- Department of Electrical Engineering, College of Engineering, King Khalid University, Abha, Saudi Arabia
| | | | - Manoj Kumar
- Department of Hydrology, Indian Institute of Technology, Roorkee, Roorkee, Uttarakhand 247667, India
| | - Anand Kumar
- School of Management Studies, Nalanda University, Rajgir, Bihar 803116, India
| | - Virendra Kumar Yadav
- Marwadi University Research Center, Department of Microbiology, Marwadi University, Rajkot, Gujarat, 360003, India
| | - Sunil Soni
- School of Medico-Legal Studies, National Forensic Science University, Gandhinagar, Gujarat 382007, India
| | - Ramesh Kumar
- Department of Environmental Science, Parul Institute of Applied Sciences, Parul University, Vadodara, Gujarat 391760, India
| | - Maytham T Qasim
- College of health and Medical Technology, Al-Ayen University, Thi-Qar 64001, Iraq
| | - Mohd Tariq
- Department of Life Sciences, Parul Institute of Applied Sciences, Parul University, Vadodara, Gujarat 391760, India
| | - Mir Waqas Alam
- Department of Physics, College of Science, King Faisal University, Al Ahsa 31982, Saudi Arabia.
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Kuang HX, Liu Y, Wang JR, Li MY, Zhou Y, Meng LX, Xiang MD, Yu YJ. Revealing the links between hair metal(loids) and alterations in blood pressure among children in e-waste recycling areas through urinary metabolomics. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 954:176352. [PMID: 39299322 DOI: 10.1016/j.scitotenv.2024.176352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2024] [Revised: 08/11/2024] [Accepted: 09/16/2024] [Indexed: 09/22/2024]
Abstract
Hypertension is prevalent in e-waste recycling areas, and elevated blood pressure in children significantly increases the risk of hypertension in adulthood. However, the associations and toxic pathways between chronic exposure to metal(loids) and elevated blood pressure are rarely investigated. In this study, we measured the levels of 29 hair metal(loids) (chronic exposure biomarkers) and blood pressure in 667 susceptible children from an e-waste recycling area to explore their relationships. Paired urine metabolomics analysis was also performed to interpret potential mechanistic pathways. Results showed that the hypertension prevalence in our recruited children (13.0 %) exceeded the average rate (9.5 %) for Chinese children aged 6-17 years. The top five abundant metal(loids), including lead, strontium, barium, and zinc, demonstrated the most profound associations with elevated systolic blood pressure. Quantile g-computation, weighted quantile sum, and Bayesian kernel machine regression analysis jointly demonstrated a significant association between chronic exposure to metal(loids) mixture and systolic blood pressure. Interestingly, selenium showed significant antagonistic interactions with these four metals, suggesting that supplementing selenium may help children resist the elevated blood pressure induced by metal(loids) exposure. Increased metal(loids) and blood pressure levels were significantly linked to changes in urine metabolomics. Structural equation model indicated that androsterone glucuronide and N-Acetyl-1-aspartylglutamic acid were the significant mediators of the associations between metal(loids) and blood pressure, with mediation effects of 77.4 % and 29.0 %, respectively, suggesting that androsterone glucuronide and N-Acetyl-1-aspartylglutamic acid may be involved in the development of metal-induced blood pressure elevating effect. Girls were more vulnerable to metal(loids)-induced hormonal imbalance, especially androsterone glucuronide, than boys. Chronic exposure to metal(loids) at e-waste recycling sites may contribute to elevated blood pressure in children through disrupting various metabolism pathways, particularly hormonal balance. Our study provides new insights into potential mechanistic pathways of metal(loids)-induced changes in children's blood pressure.
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Affiliation(s)
- Hong-Xuan Kuang
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, PR China
| | - Ye Liu
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, PR China
| | - Jia-Rong Wang
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, PR China
| | - Meng-Yang Li
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, PR China
| | - Yang Zhou
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, PR China
| | - Lin-Xue Meng
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, PR China
| | - Ming-Deng Xiang
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, PR China
| | - Yun-Jiang Yu
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, PR China.
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Frazzoli C, Bocca B, Battistini B, Ruggieri F, Rovira J, Amadi CN, Offor SJ, Orisakwe OE. Rare Earth and Platinum Group Elements In Sub-Saharan Africa and Global Health: The Dark Side of the Burgeoning of Technology. ENVIRONMENTAL HEALTH INSIGHTS 2024; 18:11786302241271553. [PMID: 39282214 PMCID: PMC11393805 DOI: 10.1177/11786302241271553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Accepted: 07/01/2024] [Indexed: 09/18/2024]
Abstract
Despite steady progress in the development and promotion of the circular economy as a model, an overwhelming proportion of technological devices discarded by the Global North still finds its way to the Global South, where technology-related environmental health problems start from the predation of resources and continue all the way to recycling and disposal. We reviewed literature on TCEs in sub-Saharan Africa (SSA), focussing on: the sources and levels of environmental pollution; the extent of human exposure to these substances; their role in the aetiology of human diseases; their effects on the environment. Our review shows that even minor and often neglected technology-critical elements (TCEs), like rare earth elements (REEs) and platinum group elements (PGEs), reveal the environmental damage and detrimental health effects caused by the massive mining of raw materials, exacerbated by improper disposal of e-waste (from dumping to improper recycling and open burning). We draw attention of local research on knowledge gaps such as workable safer methods for TCE recovery from end-of-life products, secondary materials and e-waste, environmental bioremediation and human detoxification. The technical and political shortcomings in the management of TCEs in SSA is all the more alarming against the background of unfavourable determinants of health and a resulting higher susceptibility to diseases, especially among children who work in mines and e-waste recycling sites or who reside in dumping sites.This paper demonstrates, for the first time, that the role of unjust North-South dynamics is evident even in the environmental levels of minor trace elements and that the premise underlying attempts to solve the problem of e-waste dumped in Africa through recycling and disposal technology is in fact misleading. The influx of foreign electrical and electronic equipments should be controlled and limited by clearly defining what is a 'useful' second-hand device and what is e-waste; risks arising from device components or processing by-products should be managed differently, and scientific uncertainty and One Health thinking should be incorporated in risk assessment.
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Affiliation(s)
- Chiara Frazzoli
- Department of Cardiovascular and Endocrine-Metabolic Diseases, and Ageing, Istituto Superiore di Sanità (Italian National Institute of Health), Rome, Italy
| | - Beatrice Bocca
- Department of Environment and Health, Istituto Superiore di Sanità, Rome, Italy
| | - Beatrice Battistini
- Department of Environment and Health, Istituto Superiore di Sanità, Rome, Italy
| | - Flavia Ruggieri
- Department of Environment and Health, Istituto Superiore di Sanità, Rome, Italy
| | - Joaquim Rovira
- Laboratory of Toxicology and Environmental Health, School of Medicine, IISPV, Universitat Rovira i Virgili, Reus, Catalonia, Spain
- Environmental Engineering Laboratory, Department d'Enginyeria Quimica, Universitat Rovira i Virgili, Tarragona, Catalonia, Spain
| | - Cecilia Nwadiuto Amadi
- Department of Experimental Pharmacology & Toxicology, Faculty of Pharmacy, University of Port-Harcourt, Port-Harcourt, Rivers State, Nigeria
| | - Samuel James Offor
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, University of Uyo, Uyo, Akwa Ibom State, Nigeria
| | - Orish E Orisakwe
- African Centre of Excellence for Public Health and Toxicological Research (ACE-PUTOR), University of Port Harcourt, Port Harcourt, Choba, Nigeria
- Advanced Research Centre, European University of Lefke, Lefke, Northern Cyprus, Turkey
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Eze C, Vinken M. E-waste: mechanisms of toxicity and safety testing. FEBS Open Bio 2024. [PMID: 38987214 DOI: 10.1002/2211-5463.13863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2024] [Revised: 06/23/2024] [Accepted: 06/28/2024] [Indexed: 07/12/2024] Open
Abstract
Currently, information on the toxicity profile of the majority of the identified e-waste chemicals, while extensive and growing, is admittedly fragmentary, particularly at the cellular and molecular levels. Furthermore, the toxicity of the chemical mixtures likely to be encountered by humans during and after informal e-waste recycling, as well as their underlying mechanisms of action, is largely unknown. This review paper summarizes state-of-the-art knowledge of the potential underlying toxicity mechanisms associated with e-waste exposures, with a focus on toxic responses connected to specific organs, organ systems, and overall effects on the organism. To overcome the complexities associated with assessing the possible adverse outcomes from exposure to chemicals, a growing number of new approach methodologies have emerged in recent years, with the long-term objective of providing a human-based and animal-free system that is scientifically superior to animal testing, more effective, and acceptable. This encompasses a variety of techniques, typically regarded as alternative approaches for determining chemical-induced toxicities and holds greater promise for a better understanding of key events in the metabolic pathways that mediate known adverse health outcomes in e-waste exposure scenarios. This is crucial to establishing accurate scientific knowledge on mixed e-waste chemical exposures in shorter time frames and with greater efficacy, as well as supporting the need for safe management of hazardous chemicals. The present review paper discusses important gaps in knowledge and shows promising directions for mechanistically anchored effect-based monitoring strategies that will contribute to the advancement of the methods currently used in characterizing and monitoring e-waste-impacted ecosystems.
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Affiliation(s)
- Chukwuebuka Eze
- Entity of In Vitro Toxicology and Dermato-Cosmetology, Department of Pharmaceutical and Pharmacological Sciences, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Belgium
| | - Mathieu Vinken
- Entity of In Vitro Toxicology and Dermato-Cosmetology, Department of Pharmaceutical and Pharmacological Sciences, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Belgium
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Cheng Z, Kong Y, Yang W, Xu H, Tang D, Zuo Y. Association between serum copper and blood glucose: a mediation analysis of inflammation indicators in the NHANES (2011-2016). Front Public Health 2024; 12:1401347. [PMID: 38855446 PMCID: PMC11157037 DOI: 10.3389/fpubh.2024.1401347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Accepted: 05/07/2024] [Indexed: 06/11/2024] Open
Abstract
Background The rising prevalence of diabetes underscores the need for identifying effective prevention strategies. Recent research suggests environmental factors, particularly heavy metals like copper, significantly influence health outcomes, including diabetes, through mechanisms involving inflammation and oxidative stress. This study aims to explore how serum copper levels affect blood glucose, employing NHANES data from 2011 to 2016, to provide insights into environmental health's role in diabetes prevention and management. Methods The study analyzed data from 2,318 NHANES participants across three cycles (2011-2016), focusing on those with available data on serum copper, inflammatory markers, and blood glucose levels. We utilized principal component analysis for selecting inflammatory markers, mediation analysis to examine direct and indirect effects, multiple linear regression for assessing relationships between markers and glucose levels, and weighted quantile sum regression for evaluating individual and collective marker effects, adjusting for demographic variables and serum copper. Results Participants averaged 42.70 years of age, with a near-even split between genders. Average serum copper was 119.50 μg/dL, white blood cell count 6.82 × 109/L, and fasting blood glucose 107.10 mg/dL. Analyses identified significant mediation by inflammatory markers (especially white blood cells: 39.78%) in the copper-blood glucose relationship. Regression analyses highlighted a positive correlation between white blood cells (estimate: 1.077, 95% CI: 0.432 to 2.490, p = 0.013) and copper levels and a negative correlation for monocyte percentage (estimate: -1.573, 95% CI: 0.520 to -3.025, p = 0.003). Neutrophil percentage was notably influential in glucose levels. Sensitive analyses confirmed the study's findings. Conclusion Serum copper levels significantly impact blood glucose through inflammatory marker mediation, highlighting the importance of considering environmental factors in diabetes management and prevention. These findings advocate for public health interventions and policies targeting environmental monitoring and heavy metal exposure reduction, emphasizing the potential of environmental health measures in combating diabetes incidence.
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Affiliation(s)
- Zijing Cheng
- Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Yuzhe Kong
- Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Wenqi Yang
- Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Haitao Xu
- Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Decheng Tang
- Department of Management Science, School of Management, Fudan University, Shanghai, China
| | - Yu Zuo
- Third Xiangya Hospital, Central South University, Changsha, China
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Laskaris Z, O'Neill MS, Batterman SA, Mukherjee B, Fobil JN, Robins TG. Cross-shift changes in pulmonary function and occupational exposure to particulate matter among e-waste workers in Ghana. Front Public Health 2024; 12:1368112. [PMID: 38784567 PMCID: PMC11111984 DOI: 10.3389/fpubh.2024.1368112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Accepted: 04/15/2024] [Indexed: 05/25/2024] Open
Abstract
Introduction Little is known on the association between cross-shift changes in pulmonary function and personal inhalation exposure to particulate matter (PM) among informal electronic-waste (e-waste) recovery workers who have substantial occupational exposure to airborne pollutants from burning e-waste. Methods Using a cross-shift design, pre- and post-shift pulmonary function assessments and accompanying personal inhalation exposure to PM (sizes <1, <2.5 μm, and the coarse fraction, 2.5-10 μm in aerodynamic diameter) were measured among e-waste workers (n = 142) at the Agbogbloshie e-waste site and a comparison population (n = 65) in Accra, Ghana during 2017 and 2018. Linear mixed models estimated associations between percent changes in pulmonary function and personal PM. Results Declines in forced expiratory volume in one second (FEV1) and forced vital capacity (FVC) per hour were not significantly associated with increases in PM (all sizes) among either study population, despite breathing zone concentrations of PM (all sizes) that exceeded health-based guidelines in both populations. E-waste workers who worked "yesterday" did, however, have larger cross-shift declines in FVC [-2.4% (95%CI: -4.04%, -0.81%)] in comparison to those who did not work "yesterday," suggesting a possible role of cumulative exposure. Discussion Overall, short-term respiratory-related health effects related to PM exposure among e-waste workers were not seen in this sample. Selection bias due to the "healthy worker" effect, short shift duration, and inability to capture a true "pre-shift" pulmonary function test among workers who live at the worksite may explain results and suggest the need to adapt cross-shift studies for informal settings.
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Affiliation(s)
- Zoey Laskaris
- Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI, United States
| | - Marie S. O'Neill
- Department of Epidemiology, Department of Environmental Health Sciences, University of Michigan School of Public Health, Ann Arbor, MI, United States
| | - Stuart A. Batterman
- Department of Environmental Health Sciences, University of Michigan School of Public Health, Ann Arbor, MI, United States
| | - Bhramar Mukherjee
- Department of Biostatistics, University of Michigan School of Public Health, Ann Arbor, MI, United States
| | - Julius N. Fobil
- Department of Biological, Environmental, and Occupational Health Sciences, University of Ghana School of Public Health, Accra, Ghana
| | - Thomas G. Robins
- Department of Environmental Health Sciences, University of Michigan School of Public Health, Ann Arbor, MI, United States
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Islam MK, Khatun MS, Mourshed M. An in-depth analysis and review of management strategies for E-waste in the south Asian region: A way forward towards waste to energy conversion and sustainability. Heliyon 2024; 10:e28707. [PMID: 38596113 PMCID: PMC11002055 DOI: 10.1016/j.heliyon.2024.e28707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 03/22/2024] [Accepted: 03/22/2024] [Indexed: 04/11/2024] Open
Abstract
The soaring rise of electronic and electrical waste (E-waste) leads to significant challenges to the South Asian region, urging for incorporating comprehensive assessment and management strategies. The research dives into the intricacies of E-waste and examines how regulatory barriers, public ignorance, and the limited lifespan of electronic devices all contribute to the significant production of E-waste. This study emphasizes the vital need for ongoing and appropriate management practices by bringing attention to the short lifespan of electronic devices and the resulting generation of E-waste. This work also addresses the increased risks that people who live close to informal recycling sites for electronic waste face, as well as the dangerous substances that are found in them and how they harm the environment and human health. Furthermore, in order to promote circular economies and increase productivity, the study assesses management practices in both developed and developing nations, placing special emphasis on component reuse and recycling. Along with addressing the grave consequences of the illicit E-waste trade on the environment, particularly in developing nations, this review attempts to enlighten stakeholders and policymakers about the vital need for coordinated efforts to address the issues related to E-waste in the South Asian region by offering insights into E-waste assessment and management techniques.
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Affiliation(s)
- Md. Kaviul Islam
- School of Science and Engineering, Canadian University of Bangladesh, Dhaka, Bangladesh
- Department of Mechanical Engineering, Iowa State University, Union Drive, Ames, IA, United States
| | - Mst. Sharifa Khatun
- Department of Mechanical Engineering, Iowa State University, Union Drive, Ames, IA, United States
- Department of Mechanical Engineering, Rajshahi University of Engineering and Technology, Rajshahi, Bangladesh
| | - Monjur Mourshed
- Department of Mechanical Engineering, Rajshahi University of Engineering and Technology, Rajshahi, Bangladesh
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Zia Z, Zhong R, Akbar MW. Analyzing the impact of fintech industry and green financing on energy poverty in the European countries. Heliyon 2024; 10:e27532. [PMID: 38515686 PMCID: PMC10955323 DOI: 10.1016/j.heliyon.2024.e27532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 02/24/2024] [Accepted: 03/01/2024] [Indexed: 03/23/2024] Open
Abstract
In the fourth industrial revolution, the fintech has significantly expanded during the last several years, and this has caused scholars to worry about how much electricity is being used. Because energy poverty is one of the most critical social policy concerns facing the majority of nations in the world in the modern era. This study adds to what has already been written by looking at how the fintech industry affects the environment and energy in European countries. The current study investigates how the growing awareness of the need to preserve energy and the environment has an effect on society, and analyzes the role of the fintech industry, green finance, energy efficiency, and research and development on energy poverty across European nations from 2013 to 2020. To estimate long- and short-term impacts, DOLS and FMOLS are used along with diagnostic tests. The outcomes found that there is a tight relationship between energy poverty and all the factors taken into consideration (fintech, green finance, energy efficiency, and R&D). EU governments should employ "green finance" to encourage and enable the fintech industry since fintech plays a vital role in enhancing environmental effectiveness. The financing of environmentally friendly projects is very beneficial and might help alleviate energy poverty. The findings also indicate that more financing, ecological subsidies, and social assistance programs are necessary in order to satisfy the needs for energy and put an end to energy poverty in Europe. Policymakers in the tech world may be especially interested in the results.
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Affiliation(s)
- Zeenat Zia
- College of Economics, Shenzhen University, Guangdong, 518060, China
| | - Ruoyu Zhong
- College of Economics, Shenzhen University, Guangdong, 518060, China
| | - Muhammad Waqas Akbar
- China Center for Special Economic Zone Research, Shenzhen University, Guangdong, 518060, China
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Guo J, Li R, Ouyang Z, Tang J, Zhang W, Chen H, Zhu Q, Zhang J, Zhu G. Insights into the mechanism of transcription factors in Pb 2+-induced apoptosis. Toxicology 2024; 503:153760. [PMID: 38387706 DOI: 10.1016/j.tox.2024.153760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 02/12/2024] [Accepted: 02/19/2024] [Indexed: 02/24/2024]
Abstract
The health risks associated with exposure to heavy metals, such as Pb2+, are increasingly concerning the public. Pb2+ can cause significant harm to the human body through oxidative stress, autophagy, inflammation, and DNA damage, disrupting cellular homeostasis and ultimately leading to cell death. Among these mechanisms, apoptosis is considered crucial. It has been confirmed that transcription factors play a central role as mediators during the apoptosis process. Interestingly, these transcription factors have different effects on apoptosis depending on the concentration and duration of Pb2+ exposure. In this article, we systematically summarize the significant roles of several transcription factors in Pb2+-induced apoptosis. This information provides insights into therapeutic strategies and prognostic biomarkers for diseases related to Pb2+ exposure.
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Affiliation(s)
- Jingchong Guo
- The First Clinical Medical College of Nanchang University, Nanchang 330006, China
| | - Ruikang Li
- The First Clinical Medical College of Nanchang University, Nanchang 330006, China
| | - Zhuqing Ouyang
- The First Clinical Medical College of Nanchang University, Nanchang 330006, China
| | - Jiawen Tang
- The First Clinical Medical College of Nanchang University, Nanchang 330006, China
| | - Wei Zhang
- Department of Anatomy, Medical College of Nanchang University, Nanchang 330006, China
| | - Hui Chen
- Department of Anatomy, Medical College of Nanchang University, Nanchang 330006, China
| | - Qian Zhu
- Department of Anatomy, Medical College of Nanchang University, Nanchang 330006, China
| | - Jing Zhang
- Department of Anatomy, Medical College of Nanchang University, Nanchang 330006, China.
| | - Gaochun Zhu
- Department of Anatomy, Medical College of Nanchang University, Nanchang 330006, China.
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Castro-Mejía MA, Saldaña-Villanueva K, Méndez-Rodríguez KB, Ortega-Romero M, Barbier OC, Pérez-Vázquez FJ. Evaluation of renal function in precarious workers exposed to heavy metals in vulnerable scenarios in the metropolitan area of San Luis Potosí, México. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2024; 106:104350. [PMID: 38154760 DOI: 10.1016/j.etap.2023.104350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 12/08/2023] [Accepted: 12/18/2023] [Indexed: 12/30/2023]
Abstract
The aim of the study was to evaluate renal function in three groups of precarious workers: garbage recyclers (REC), quarry workers (CAN), and brick makers (LAD). Samples of urine and blood were collected to evaluate clinical parameters and the metal levels in urine was measured using ICP-MS. REC group had the highest concentrations of chromium in urine (36.03 ± 27.2 µg/l) compared to CAN and LAD groups. Mercury concentrations were higher in the LAD group (3.7 ± 0.8 µg/l). Additionally, arsenic was detected in both CAN and REC groups (25.4 ± 26.2 and 19.09 ± 16.7 µg/l, respectively), while arsenic concentrations in LAD were higher (47.2 ± 30.8 µg/l). In kidney biomarkers, β2-microglobulin concentrations were higher in the REC group (87867 ± 115159.5 ng/g UCr). Similarly, cystatin-C concentrations were higher in the REC group (32795.61 ± 34965.8 ng/g UCr). The data suggests that precarious workers are exposed to heavy metals and have elevated protein levels that contribute to kidney damage.
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Affiliation(s)
- Mariana Alejandra Castro-Mejía
- Centro de Investigación Aplicada en Ambiente y Salud (CIAAS), Coordinación para la Innovación y Aplicación de la Ciencia y la Tecnología (CIACYT), Universidad Autónoma de San Luis Potosí, San Luis Potosí, México
| | - Kelvin Saldaña-Villanueva
- CONAHCyT Research Fellow, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, Unidad Noreste (CIATEJ), Nuevo León, México
| | - Karen Beatriz Méndez-Rodríguez
- CONAHCyT Research Fellow, Coordinación para la Innovación y Aplicación de la Ciencia y la Tecnología (CIACYT), Universidad Autónoma de San Luis Potosí, San Luis Potosí, México
| | - Manolo Ortega-Romero
- Unidad de Investigación en Nefrología y Metabolismo Mineral Óseo. Hospital Infantil de México Federico Gómez, Ciudad de Mexico, Mexico
| | - Olivier C Barbier
- Departamento de Toxicología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Ciudad de México, México
| | - Francisco Javier Pérez-Vázquez
- CONAHCyT Research Fellow, Coordinación para la Innovación y Aplicación de la Ciencia y la Tecnología (CIACYT), Universidad Autónoma de San Luis Potosí, San Luis Potosí, México.
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Su WC, Lee J, Afshar M, Zhang K, Han I. Assessing community health risks from exposure to ultrafine particles containing transition metals in the Greater Houston Area. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:169067. [PMID: 38049001 PMCID: PMC11215817 DOI: 10.1016/j.scitotenv.2023.169067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 11/06/2023] [Accepted: 12/01/2023] [Indexed: 12/06/2023]
Abstract
Ultrafine particles (UFPs) in urban air environments have been an essential public health concern. The inhalation of UFPs can introduce transition metals contained in the UFP into the human airways, leading to adverse health effects. Therefore, it is crucial to investigate urban air UFP exposure and health risks induced by transition metals. This research carried out a series of field measurements to study urban air UFP exposure in the Greater Houston Area. Three sampling sites in the Greater Houston Area representing varying levels of UFP exposures were selected. The newly developed Mobile Aerosol Lung Deposition Apparatus (MALDA) which consists of a complete set of human airway replicas and a pair of UFP particle sizers was deployed in the sampling sites during three sampling timeframes (morning rush hours, noon, and afternoon rush hours) to obtain on-site UFP respiratory deposition data. UFP samples were collected at the sampling sites for metal composition analysis. The acquired UFP respiratory deposition data and UFP composition data were then used to calculate the respiratory deposited mass of transition metals and estimate the associated health risks for individuals living near sampling sites. Our results showed that transition metal-induced non-cancer risks caused by exposure to urban UFPs were within acceptable limits. The estimated lifetime excess cancer risks were generally <10-6, indicating an overall acceptable level of transition metal-induced cancer risk.
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Affiliation(s)
- Wei-Chung Su
- Department of Epidemiology, Human Genetics and Environmental Sciences, School of Public Health, University of Texas Health Science Center at Houston, Houston, TX, USA; Southwest Center for Occupational and Environmental Health, School of Public Health, University of Texas Health Science Center at Houston, Houston, TX, USA.
| | - Jinho Lee
- Department of Epidemiology, Human Genetics and Environmental Sciences, School of Public Health, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Masoud Afshar
- Southwest Center for Occupational and Environmental Health, School of Public Health, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Kai Zhang
- Department of Environmental Health Sciences, School of Public Health, University at Albany, State University of New York, Rensselaer, NY, USA
| | - Inkyu Han
- Department of Epidemiology and Biostatistics, College of Public Health, Temple University, Philadelphia, PA, USA
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12
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Ghobakhloo S, Mostafaii GR, Khoshakhlagh AH, Moda HM, Gruszecka-Kosowska A. Health risk assessment of heavy metals in exposed workers of municipal waste recycling facility in Iran. CHEMOSPHERE 2024; 346:140627. [PMID: 37944764 DOI: 10.1016/j.chemosphere.2023.140627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/22/2023] [Accepted: 11/04/2023] [Indexed: 11/12/2023]
Abstract
Exposure to heavy metals (HMs) present in the particulate matter from municipal solid waste during pretreatment and recycling processes may pose a serious health risk to workers. This was the first study on the exposure of municipal solid waste (MSW) recycling workers to toxic metals. The concentrations of HMs (Cd, Pb, As, Co, Cr, Ni, Cu, Fe, Mn, and Zn) during personal exposure to PM2.5 among municipal waste recycling facility workers in Kashan City, Iran, were investigated from January 15 to March 15, 2023. The research was performed in the three main stages of the waste recycling process: dismantling, sorting, and collecting. PM2.5 samples were collected using a personal environmental monitor (PEM) attached to a sampling pump. The non-carcinogenic and carcinogenic health risk values and related uncertainty for waste recyclers from HMs inhalational exposure were calculated using USEPA methodology and Monte Carlo simulations. The results showed that the dismantlers exhibited the highest exposure concentrations of PM2.5 (mean 2148 ± 1257 μg m-3), followed by sorters (mean 1864 ± 965 μg m-3), and collectors (mean 1782 ± 876 μg m-3). Health risk assessment indicated that 95th percentile contents of Ni, As, Co, and Zn were responsible for the non-carcinogenic risk (HQ) values exceeding the acceptable level of 1. The contents of As, Ni, and Cr in PM2.5 caused a non-acceptable carcinogenic risk for waste recyclers due to inhalational exposure, as the carcinogenic risk (CR) values exceeded the acceptable threshold of 1 × 10-6. Monte Carlo simulation results revealed that the mean and median CR values from inhalational exposure to carcinogenic HMs exceeded the acceptable level of 1 × 10-6 for municipal waste recyclers. As results of this study indicated the high-risk to hazardous metals for waste recyclers due to occupational exposure in the MSW recycling sites, it is suggested to consider workers' exposure as the public health concern.
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Affiliation(s)
- Safiye Ghobakhloo
- Department of Environmental Health Engineering, School of Health, Kashan University of Medical Sciences, Kashan, Iran
| | - Gholam Reza Mostafaii
- Department of Environmental Health Engineering, School of Health, Kashan University of Medical Sciences, Kashan, Iran
| | - Amir Hossein Khoshakhlagh
- Department of Occupational Health Engineering, School of Health, Kashan University of Medical Sciences, Kashan, Iran.
| | - Haruna Musa Moda
- Department of Environmental Health and Safety, University of Doha for Science and Technology, Doha, Qatar
| | - Agnieszka Gruszecka-Kosowska
- AGH University of Science and Technology, Faculty of Geology, Geophysics, and Environmental Protection; Department of Environmental Protection, Al. Mickiewicza 30, 30-059, Krakow, Poland
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13
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Kumari H, Yadav S. A comparative study on metal pollution from surface dust of informal and formal e-waste recycling sectors in national capital region of New Delhi and associated risk assessment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 904:166791. [PMID: 37678522 DOI: 10.1016/j.scitotenv.2023.166791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 08/31/2023] [Accepted: 09/01/2023] [Indexed: 09/09/2023]
Abstract
Electrical and electronic waste (e-waste) is considered as resource and secondary source of metals, and is being recycled for recovery of precious and base metals. But the processes of recycling and the waste generated during e-waste recycling in informal and formal sectors contribute toxic metals in to the environment. This work aimed to compare the environmental and health impacts of informal and formal e-waste recycling facilities at New Delhi and Bhiwadi Industrial area in India, respectively. Here, concentrations of Ba, Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, Sn, V, Zn, and Ag, and As in surface dust collected from informal and formal recycling sectors and their associated pollution, human health and ecological risk are presented. Metal concentrations were higher than the background levels in both sectors. Contamination factor (Cf), contamination degree (Cdeg), pollution load index (PLI), geo-accumulation index (Igeo) and enrichment factor (EnF) of metals indicated severe pollution levels in both sectors. However, contamination in informal sector was comparatively higher than the formal sector. Sampling sites in both sectors had very high ecological risk. Storage, dismantling/shredding and recycling techniques were contributors of metals in surface dust in formal sector whereas fumes deposition, re-suspension, and dried by-products during acid bath treatments were additional sources in informal sector. Metal pollution depends on metal(s), e-waste type(s) and recycling sector(s). Total non-carcinogenic health risk due to metals was 6.5E+00 and 6.0E+01 and 6.2E+00 and 5.5E+01 in adult and children in informal and formal sectors, respectively. Total carcinogenic risk was 3.3E-03 and 7.2E-03 in informal and formal sectors, respectively. Ingestion was major pathways of metals followed by dermal and inhalation and children were more prone to risk compared to adults. Formal sectors too cause metal pollution but to lesser degree compared to informal. More effective pollution control measures are required in formal sector to control environmental pollution.
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Affiliation(s)
- Hina Kumari
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Sudesh Yadav
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi 110067, India.
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14
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Meng Y, Lai J, Fan L, Mo S, Gou C, Zhang C. Recycling of the waste battery: Effect of waste battery on property of asphalt and environmental impact evaluation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 904:166983. [PMID: 37699487 DOI: 10.1016/j.scitotenv.2023.166983] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 08/18/2023] [Accepted: 09/09/2023] [Indexed: 09/14/2023]
Abstract
A waste battery is a kind of hazardous solid waste, and traditional recycling methods can cause serious environmental pollution. In this paper, a pilot study was conducted to reduce the leaching of heavy metals in waste battery power (WBP) by using the wrapping effect of asphalt and explored the feasibility of adding waste battery as a modifier to asphalt. The main components of WBP are determined through microscopic experiments, and its compatibility with asphalt and microscopic mechanism are analyzed; The influence of WBP on asphalt properties are analyzed through routine tests and mixture tests; The leaching test of toxicity is used to analyze the impact of WBP and WBP modified asphalt on the environment. The experimental results indicate that WBP is mainly composed of MnO2, C, and ZnO; There are many wrinkles and grooves on the surface of WBP, which can effectively adsorb asphalt during the modification process, produce anchoring effect, and have good compatibility with asphalt; The components of waste battery adsorb the aging light components in asphalt through their folds and swelling, so that the proportion of heavy components is relatively increased, improving the property indicators of asphalt; From the perspective of engineering property, WBP modified asphalt mixture has strong resistance to deformation and water damage. The leaching concentration of heavy metal ions from bare WBP in soil seriously exceeded the standard. In contrast, when WBP was added to asphalt, the cumulative leaching concentration of heavy metal ions was significantly reduced due to the wrapping effect of asphalt, and the WBP leaching toxicity was greatly suppressed; The method of recycling waste battery and adding it to asphalt as a modifier can prevent the release of heavy metal ions from waste battery into the environment and reduce the risk of the total environmental harm to soil, groundwater and human health.
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Affiliation(s)
- Yongjun Meng
- College of Civil Engineering and Architecture, Guangxi University, Nanning, Guangxi 530004, China; Key Laboratory of Disaster Prevention and Engineering Safety of Ministry of Education, Nanning, Guangxi 530004, China; Special Geological Highway Safety Engineering Technology Research Center of Guangxi, Nanning 530004, China; National High- property Computing Center Nanning Branch, Nanning, Guangxi 530004, China
| | - Jun Lai
- College of Civil Engineering and Architecture, Guangxi University, Nanning, Guangxi 530004, China
| | - Liupeng Fan
- College of Civil Engineering and Architecture, Guangxi University, Nanning, Guangxi 530004, China
| | - Shuyi Mo
- College of Civil Engineering and Architecture, Guangxi University, Nanning, Guangxi 530004, China
| | - Chaoliang Gou
- College of Civil Engineering and Architecture, Guangxi University, Nanning, Guangxi 530004, China
| | - Chunyu Zhang
- College of Civil Engineering and Architecture, Guangxi University, Nanning, Guangxi 530004, China.
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15
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Odnevall I, Brookman-Amissah M, Stábile F, Ekvall MT, Herting G, Bermeo Vargas M, Messing ME, Sturve J, Hansson LA, Isaxon C, Rissler J. Characterization and Toxic Potency of Airborne Particles Formed upon Waste from Electrical and Electronic Equipment Waste Recycling: A Case Study. ACS ENVIRONMENTAL AU 2023; 3:370-382. [PMID: 38028743 PMCID: PMC10655593 DOI: 10.1021/acsenvironau.3c00034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 10/20/2023] [Accepted: 10/20/2023] [Indexed: 12/01/2023]
Abstract
Manual dismantling, shredding, and mechanical grinding of waste from electrical and electronic equipment (WEEE) at recycling facilities inevitably lead to the accidental formation and release of both coarse and fine particle aerosols, primarily into the ambient air. Since diffuse emissions to air of such WEEE particles are not regulated, their dispersion from the recycling plants into the adjacent environment is possible. The aim of this interdisciplinary project was to collect and characterize airborne WEEE particles smaller than 1 μm generated at a Nordic open waste recycling facility from a particle concentration, shape, and bulk and surface composition perspective. Since dispersed airborne particles eventually may reach rivers, lakes, and possibly oceans, the aim was also to assess whether such particles may pose any adverse effects on aquatic organisms. The results show that WEEE particles only exerted a weak tendency toward cytotoxic effects on fish gill cell lines, although the exposure resulted in ROS formation that may induce adverse effects. On the contrary, the WEEE particles were toxic toward the crustacean zooplankter Daphnia magna, showing strong effects on survival of the animals in a concentration-dependent way.
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Affiliation(s)
- Inger Odnevall
- Department
of Chemistry, Division of Surface and Corrosion Science, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
- AIMES−Center
for the Advancement of Integrated Medical and Engineering Sciences
at Karolinska Institute and KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
- Department
of Neuroscience, Karolinska Institute, SE-171 77 Stockholm, Sweden
| | - Marianne Brookman-Amissah
- Department
of Biological and Environmental Sciences, University of Gothenburg, SE-405 30 Gothenburg, Sweden
| | - Franca Stábile
- Department
of Biology, Aquatic Ecology, Lund University, SE-223 62 Lund, Sweden
| | - Mikael T. Ekvall
- Department
of Biology, Aquatic Ecology, Lund University, SE-223 62 Lund, Sweden
- NanoLund, Lund University, SE-221 00 Lund, Sweden
| | - Gunilla Herting
- Department
of Chemistry, Division of Surface and Corrosion Science, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Marie Bermeo Vargas
- Solid
State Physics, Lund University, Box 118, 221 00 Lund, Sweden
- NanoLund, Lund University, SE-221 00 Lund, Sweden
| | - Maria E. Messing
- Solid
State Physics, Lund University, Box 118, 221 00 Lund, Sweden
- NanoLund, Lund University, SE-221 00 Lund, Sweden
| | - Joachim Sturve
- Department
of Biological and Environmental Sciences, University of Gothenburg, SE-405 30 Gothenburg, Sweden
| | - Lars-Anders Hansson
- Department
of Biology, Aquatic Ecology, Lund University, SE-223 62 Lund, Sweden
| | - Christina Isaxon
- Ergonomics
and Aerosol Technology, Lund University, SE-221 00 Lund, Sweden
- NanoLund, Lund University, SE-221 00 Lund, Sweden
| | - Jenny Rissler
- Ergonomics
and Aerosol Technology, Lund University, SE-221 00 Lund, Sweden
- Bioeconomy
and Health, RISE Research Institutes of
Sweden, SE-223 70 Lund, Sweden
- NanoLund, Lund University, SE-221 00 Lund, Sweden
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16
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Avarand N, Tavakoli B, Mahdiany Bora K. Life cycle assessment of urban waste management in Rasht, Iran. INTEGRATED ENVIRONMENTAL ASSESSMENT AND MANAGEMENT 2023; 19:1385-1393. [PMID: 36843507 DOI: 10.1002/ieam.4751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Revised: 01/27/2023] [Accepted: 02/14/2023] [Indexed: 06/18/2023]
Abstract
Population growth and industrial development have led to an increase in urban solid waste globally. Collection and disposal of urban waste remain the biggest challenges that countries face at the moment. Proper management in various stages of production, storage, transportation, and disposal of waste can ensure minimal impact to human and environmental health. There are several tools for evaluating a waste management system; among these, life cycle assessment (LCA) is an important one. This article aims to evaluate the life cycle of waste management in the city of Rasht and prioritize decisions to develop its waste management system. To achieve this purpose, four waste management scenarios were designed. In addition, the life cycle cataloging of the scenarios was done using the IWM-1 model in order to calculate the consumption of energy and also obtain the number of pollutant emission sources in each scenario. In the next step, the LCA of the scenarios was performed using the Eco-Indicator 99 index. The results of the study showed that scenario 4 had the most positive effects on the environment, with 40% compost, 25% recycling, 20% sanitary landfill, and 15% waste incineration, based on the index. Therefore, it was chosen as the best option for waste management in the city of Rasht. Integr Environ Assess Manag 2023;19:1385-1393. © 2023 SETAC.
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Affiliation(s)
- Niloufar Avarand
- Department of Environmental Sciences, Faculty of Natural Resources, University of Guilan, Rasht, Guilan Province, Iran
| | - Babak Tavakoli
- Department of Environmental Sciences, Faculty of Natural Resources, University of Guilan, Rasht, Guilan Province, Iran
| | - Khashayar Mahdiany Bora
- Department of Environmental Sciences, Faculty of Natural Resources, University of Guilan, Rasht, Guilan Province, Iran
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17
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Su WC, Lee J, Zhang K, Wong SW, Buu A. Estimation of Health Risks Caused by Metals Contained in E-Cigarette Aerosol through Passive Vaping. TOXICS 2023; 11:684. [PMID: 37624189 PMCID: PMC10459233 DOI: 10.3390/toxics11080684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Revised: 07/29/2023] [Accepted: 08/04/2023] [Indexed: 08/26/2023]
Abstract
It is expected that secondary exposure to e-cigarette aerosol (passive vaping) will soon become an issue of public health. Passive vaping inhales e-cigarette aerosol containing similar harmful substances as active vaping. However, parallel studies on passive vaping are minimal. Therefore, there is a need for passive vaping-related health risk studies to assess the impact of vaping on public health. This research conducted a series of experiments in a room using a puffing machine and the Mobile Aerosol Lung Deposition Apparatus (MALDA) to study e-cigarette aerosol respiratory deposition through passive vaping. The experimental data acquired were applied to estimate the deposited mass and health risks caused by toxic metals contained in e-cigarette aerosol. Five popular e-cigarette products were used in this study to generate e-cigarette aerosol for deposition experiments. In addition, size-segregated e-cigarette aerosol samples were collected, and metal compositions in the e-cigarette aerosol were analyzed. Results obtained showed that estimated non-cancer risks were all acceptable, with hazard quotient and hazard index all less than 1.0. The calculated cancer risks were also found acceptable, with lifetime excess cancer risk generally less than 1E-6. Therefore, the e-cigarettes tested and the passive vaping exposure scenarios studied do not seem to induce any potential for metal-related respiratory health effects.
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Affiliation(s)
- Wei-Chung Su
- Department of Epidemiology, Human Genetics and Environmental Sciences, School of Public Health, University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Jinho Lee
- Department of Epidemiology, Human Genetics and Environmental Sciences, School of Public Health, University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Kai Zhang
- Department of Environmental Health Sciences, School of Public Health, University at Albany, State University of New York, Rensselaer, NY 12144, USA
| | - Su-Wei Wong
- Department of Health Promotion & Behavioral Sciences, School of Public Health, University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Anne Buu
- Department of Health Promotion & Behavioral Sciences, School of Public Health, University of Texas Health Science Center at Houston, Houston, TX 77030, USA
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18
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Jadhao PR, Mishra S, Singh A, Pant KK, Nigam KDP. A sustainable route for the recovery of metals from waste printed circuit boards using methanesulfonic acid. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 335:117581. [PMID: 36867901 DOI: 10.1016/j.jenvman.2023.117581] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 02/13/2023] [Accepted: 02/23/2023] [Indexed: 06/18/2023]
Abstract
The rapid increase in electronic waste (e-waste) generation and its unsustainable management pose a threat to the environment and human well-being. However, various valuable metals are present in e-waste, which makes it a potential secondary source to recover metals. Therefore, in the present study, efforts were made to recover valuable metals (Cu, Zn, and Ni) from waste printed circuit boards (WPCB) of computers using methanesulfonic acid (MSA). MSA is contemplated as a biodegradable green solvent and has a high solubility for various metals. The effect of various process parameters (MSA concentration, H2O2 concentration, stirring speed, liquid to solid ratio, time, and temperature) was investigated on metal extraction to optimize the process. At the optimized process conditions, 100% extraction of Cu and Zn was achieved, while Ni extraction was around 90%. The kinetic study for metal extraction was performed using a shrinking core model and findings showed that MSA-aided metal extraction is a diffusion-controlled process. Activation energies were found to be 9.35, 10.89, and 18.86 kJ/mol for Cu, Zn, and Ni extraction, respectively. Furthermore, the individual recovery of Cu and Zn was achieved using the combination of cementation and electrowinning, which resulted in 99.9% purity of Cu and Zn. The current study proposes a sustainable solution for the selective recovery of Cu and Zn from WPCB.
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Affiliation(s)
- Prashant Ram Jadhao
- Department of Chemical Engineering, Indian Institute of Technology Delhi, New Delhi, 110016, India.
| | - Snigdha Mishra
- Department of Chemical Engineering, Indian Institute of Technology Delhi, New Delhi, 110016, India
| | - Aditya Singh
- Department of Chemical Engineering, Indian Institute of Technology Delhi, New Delhi, 110016, India
| | - K K Pant
- Department of Chemical Engineering, Indian Institute of Technology Delhi, New Delhi, 110016, India.
| | - K D P Nigam
- Department of Chemical Engineering, Indian Institute of Technology Delhi, New Delhi, 110016, India
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19
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Yang Y, Shen J, Chen H, Liang Z, Liu X, Ji H. Emission inventories, emission factors, and composition profiles of volatile organic compounds (VOCs) and heavy metals (HMs) from an electronic waste dismantling park in southern China. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023:121890. [PMID: 37236584 DOI: 10.1016/j.envpol.2023.121890] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 05/17/2023] [Accepted: 05/23/2023] [Indexed: 05/28/2023]
Abstract
Electronic waste (e-waste) dismantling is a significant source of atmospheric pollutants, including volatile organic compounds (VOCs) and heavy metals (HMs), which may have adverse effects on the surrounding environment and residents. However, the organized emission inventories and emission characteristics of VOCs and HMs from e-waste dismantling are not well documented. In this study, the concentrations and components of VOCs and HMs were monitored at the exhaust gas treatment facility from two process areas of a typical e-waste dismantling park in southern China in 2021. Emission inventories of VOCs and HMs were established, with total emissions of 8.85 t/a and 18.3 kg/a for VOCs and HMs in this park, respectively. The cutting & crushing (CC) area was the largest emissions source, accounting for 82.6% of VOCs and 79.9% of HMs, respectively, while the baking plate (BP) area had higher emission factors. Additionally, the concentration and composition of VOCs and HMs in the park were also analyzed. For VOCs, the concentrations of halogenated hydrocarbons and aromatic hydrocarbons were comparable in the park, while m/p-xylene, o-xylene, and chlorobenzene were the key VOC species. The HM concentrations followed the order of Pb > Cu > Mn > Ni > As > Cd > Hg, with Pb and Cu being the main heavy metals released. This is the first VOC and HM emission inventory for the e-waste dismantling park, and our data will lay a solid ground for pollution control and management for the e-waste dismantling industry.
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Affiliation(s)
- Yan Yang
- School of Chemical Engineering and Light Industry, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, PR China; Synergy Innovation Institute of GDUT, Shantou, 515041, Guangdong, China.
| | - Jiarui Shen
- School of Chemical Engineering and Light Industry, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, PR China; Synergy Innovation Institute of GDUT, Shantou, 515041, Guangdong, China
| | - Haojia Chen
- Chemistry and Chemical Engineering Guangdong Laboratory, Shantou, 515041, Guangdong, China; School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, Guangxi University, Guangxi, Nanning, 530000, PR China
| | - Zhiqin Liang
- School of Chemical Engineering and Light Industry, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, PR China; Synergy Innovation Institute of GDUT, Shantou, 515041, Guangdong, China
| | - Xiaotu Liu
- School of Environment and Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou, 510632, China
| | - Hongbing Ji
- Chemistry and Chemical Engineering Guangdong Laboratory, Shantou, 515041, Guangdong, China; School of Chemistry and Chemical Engineering, Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, Guangxi University, Guangxi, Nanning, 530000, PR China
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20
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Qiao P, Wang S, Lei M, Guo G, Yang J, Wei Y, Gou Y, Li P, Zhang Z. Influencing factors identification and the nested structure analysis of heavy metals in soils in entire city and surrounding the multiple pollution sources. JOURNAL OF HAZARDOUS MATERIALS 2023; 449:130961. [PMID: 36801713 DOI: 10.1016/j.jhazmat.2023.130961] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 12/21/2022] [Accepted: 02/05/2023] [Indexed: 06/18/2023]
Abstract
Identifying the sources of pollutants and analyzing the nested structure of heavy metals is vital for the prevention and control of soil pollution. However, there is a lack of research on comparison the main sources and the nested structure at different scales. In this study, two spatial extent scales were taken as the research objects, the results showed that, (1) the point exceeding standard rate of As, Cr, Ni, and Pb is higher at the entire city scale; (2) As and Pb, while Cr, Ni, and Zn, have weaker spatial variability at the entire scale and surrounding the pollution sources, respectively; (3) the contribution of the larger structure of Cr and Ni, while Cr, Ni, and Zn, at the entire scale and surrounding the pollution sources, respectively, is bigger to the total variability. The representation of semivariogram is better when the general spatial variability is weaker and the contribution of the smaller structure is lower; (4) various factors with different influencing distance could lead to nested structure even at a small extent spatial scale. The results provide a basis for the determination of remediation and prevention objectives at different spatial scales.
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Affiliation(s)
- Pengwei Qiao
- Institute of Resources and Environment, Beijing Academy of Science and Technology, Beijing Key Laboratory of Remediation of Industrial Pollution Sites, Beijing 100089, China.
| | - Shuo Wang
- Institute of Resources and Environment, Beijing Academy of Science and Technology, Beijing Key Laboratory of Remediation of Industrial Pollution Sites, Beijing 100089, China
| | - Mei Lei
- Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
| | - Guanghui Guo
- Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
| | - Jun Yang
- Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
| | - Yan Wei
- Institute of Resources and Environment, Beijing Academy of Science and Technology, Beijing Key Laboratory of Remediation of Industrial Pollution Sites, Beijing 100089, China
| | - Yaling Gou
- Institute of Resources and Environment, Beijing Academy of Science and Technology, Beijing Key Laboratory of Remediation of Industrial Pollution Sites, Beijing 100089, China
| | - Peizhong Li
- Institute of Resources and Environment, Beijing Academy of Science and Technology, Beijing Key Laboratory of Remediation of Industrial Pollution Sites, Beijing 100089, China
| | - Zhongguo Zhang
- Institute of Resources and Environment, Beijing Academy of Science and Technology, Beijing Key Laboratory of Remediation of Industrial Pollution Sites, Beijing 100089, China
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Srivastav AL, Markandeya, Patel N, Pandey M, Pandey AK, Dubey AK, Kumar A, Bhardwaj AK, Chaudhary VK. Concepts of circular economy for sustainable management of electronic wastes: challenges and management options. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:48654-48675. [PMID: 36849690 PMCID: PMC9970861 DOI: 10.1007/s11356-023-26052-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 02/17/2023] [Indexed: 04/16/2023]
Abstract
The electronic and electrical industrial sector is exponentially growing throughout the globe, and sometimes, these wastes are being disposed of and discarded with a faster rate in comparison to the past era due to technology advancements. As the application of electronic devices is increasing due to the digitalization of the world (IT sector, medical, domestic, etc.), a heap of discarded e-waste is also being generated. Per-capita e-waste generation is very high in developed countries as compared to developing countries. Expansion of the global population and advancement of technologies are mainly responsible to increase the e-waste volume in our surroundings. E-waste is responsible for environmental threats as it may contain dangerous and toxic substances like metals which may have harmful effects on the biodiversity and environment. Furthermore, the life span and types of e-waste determine their harmful effects on nature, and unscientific practices of their disposal may elevate the level of threats as observed in most developing countries like India, Nigeria, Pakistan, and China. In the present review paper, many possible approaches have been discussed for effective e-waste management, such as recycling, recovery of precious metals, adopting the concepts of circular economy, formulating relevant policies, and use of advance computational techniques. On the other hand, it may also provide potential secondary resources valuable/critical materials whose primary sources are at significant supply risk. Furthermore, the use of machine learning approaches can also be useful in the monitoring and treatment/processing of e-wastes. HIGHLIGHTS: In 2019, ~ 53.6 million tons of e-wastes generated worldwide. Discarded e-wastes may be hazardous in nature due to presence of heavy metal compositions. Precious metals like gold, silver, and copper can also be procured from e-wastes. Advance tools like artificial intelligence/machine learning can be useful in the management of e-wastes.
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Affiliation(s)
- Arun Lal Srivastav
- Chitkara University School of Engineering and Technology, Chitkara University, Solan, Himachal Pradesh, 174103, India
| | - Markandeya
- Ex-Department of Civil Engineering, Indian Institute of Technology (BHU), Varanasi, 221005, India
| | - Naveen Patel
- Department of Civil Engineerin, IET, Dr. RammanoharLohia Avadh University, Uttar Pradesh, Ayodhya, India
| | - Mayank Pandey
- Department of Environmental Studies, P.G.D.A.V. College (Evening), University of Delhi, Delhi, 110065, India
| | - Ashutosh Kumar Pandey
- Department of Earth Sciences, Banasthali Vidyapith, Radha Kishnpura, P. O. Banasthali, Rajasthan, 304022, India
| | - Ashutosh Kumar Dubey
- Chitkara University School of Engineering and Technology, Chitkara University, Solan, Himachal Pradesh, 174103, India.
| | - Abhishek Kumar
- Department of Computer Science and Engineering, Chandigarh University, Gharuan, Mohali, Punjab, India
| | - Abhishek Kumar Bhardwaj
- Amity School of Life Sciences, Department of Environmental Science, Amity University, Madhya Pradesh, Gwalior, 474001, India
| | - Vinod Kumar Chaudhary
- Department of Environmental Sciences, Dr. Rammanohar Lohia Avadh University, Ayodhya, Uttar Pradesh, India
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Lovén K, Isaxon C, Ahlberg E, Bermeo M, Messing ME, Kåredal M, Hedmer M, Rissler J. Size-resolved characterization of particles >10 nm emitted to air during metal recycling. ENVIRONMENT INTERNATIONAL 2023; 174:107874. [PMID: 36934572 DOI: 10.1016/j.envint.2023.107874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 02/21/2023] [Accepted: 03/09/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND In the strive towards a circular economy, metal waste recycling is a growing industry. During the recycling process, particulate matter containing toxic and allergenic metals will be emitted to the air causing unintentional exposure to humans and environment. OBJECTIVE In this study detailed characterization of particle emissions and workplace exposures were performed, covering the full size range from 10 nm to 10 µm, during recycling of three different material flows: Waste of electrical and electronic equipment (WEEE), metal scrap, and cables. METHODS Both direct-reading instruments (minute resolution), and time-integrated filter measurements for gravimetric and chemical analysis were used. Additionally, optical sensors were applied and evaluated for long-term online monitoring of air quality in industrial settings. RESULTS The highest concentrations, in all particle sizes, and with respect both to particle mass and number, were measured in the WEEE flow, followed by the metal scrap flow. The number fraction of nanoparticles was high for all material flows (0.66-0.86). The most abundant metals were Fe, Al, Zn, Pb and Cu. Other elements of toxicological interest were Mn, Ba and Co. SIGNIFICANCE The large fraction of nanoparticles, and the fact that their chemical composition deviate from that of the coarse particles, raises questions that needs to be further addressed including toxicological implications, both for humans and for the environment.
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Affiliation(s)
- Karin Lovén
- Division of Occupational and Environmental Medicine, Department of Laboratory Medicine, Lund University, SE-22100 Lund, Sweden; Department of Occupation and Environmental Medicine, Region Skåne, SE-22381 Lund, Sweden.
| | - Christina Isaxon
- Division of Ergonomics and Aerosol Technology, Department of Design Sciences, Lund University, SE-22100 Lund, Sweden; NanoLund, Lund University, SE-22100 Lund, Sweden
| | - Erik Ahlberg
- Division of Nuclear Physics, Department of Physics, Lund University, SE-22100 Lund, Sweden
| | - Marie Bermeo
- NanoLund, Lund University, SE-22100 Lund, Sweden; Solid State Physics, Department of Physics, Lund University, SE-22100 Lund, Sweden
| | - Maria E Messing
- NanoLund, Lund University, SE-22100 Lund, Sweden; Solid State Physics, Department of Physics, Lund University, SE-22100 Lund, Sweden
| | - Monica Kåredal
- Division of Occupational and Environmental Medicine, Department of Laboratory Medicine, Lund University, SE-22100 Lund, Sweden; Department of Occupation and Environmental Medicine, Region Skåne, SE-22381 Lund, Sweden; NanoLund, Lund University, SE-22100 Lund, Sweden
| | - Maria Hedmer
- Division of Occupational and Environmental Medicine, Department of Laboratory Medicine, Lund University, SE-22100 Lund, Sweden; Department of Occupation and Environmental Medicine, Region Skåne, SE-22381 Lund, Sweden; NanoLund, Lund University, SE-22100 Lund, Sweden
| | - Jenny Rissler
- Division of Ergonomics and Aerosol Technology, Department of Design Sciences, Lund University, SE-22100 Lund, Sweden; NanoLund, Lund University, SE-22100 Lund, Sweden; Division of Bioeconomy and Health, RISE Research Institute of Sweden, SE-22370 Lund, Sweden.
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23
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Zhang X, Wang Y, Zhang Z, Long H. How Does Environmental Information Disclosure Affect Public Health? Evidence from the New Ambient Air Quality Standards. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:15141. [PMID: 36429860 PMCID: PMC9690995 DOI: 10.3390/ijerph192215141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/09/2022] [Accepted: 11/10/2022] [Indexed: 06/16/2023]
Abstract
Using a quasi-natural experiment of the implementation of the new Ambient Air Quality Standards in China, this paper assessed the impact of environmental information disclosure on public health. Our empirical results showed that environmental information disclosure (EID) largely improved both physical health and mental health. Moreover, we further investigated the air pollution channel, and the empirical results showed that EID could reduce the concentration of PM2.5, which could cause an increase in public health as the concentration of PM2.5 decreases. In addition, in terms of individual characteristics, the impact of EID was larger for men, people living in the countryside and people older than 60. In terms of the heterogeneity of cities, the impact of EID was larger in cities with higher public environmental concerns, and the impact of EID was more pronounced in core cities. For regional heterogeneity, the impact of EID on physical health was more pronounced in more developed regions, whereas the impact EID on mental health was higher in less developed regions.
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Affiliation(s)
- Xiang Zhang
- Accounting School, Chongqing University of Technology, Chongqing 400054, China
| | - Yanan Wang
- Accounting School, Chongqing University of Technology, Chongqing 400054, China
| | - Zongyi Zhang
- School of Economics and Business Administration, Chongqing University, Chongqing 400030, China
| | - Hongyu Long
- Nanyang Technopreneurship Centre, Nanyang Technological University, Singapore 639798, Singapore
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24
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Dawud F, Takyi SA, Arko-Mensah J, Basu N, Egbi G, Ofori-Attah E, Bawuah SA, Fobil JN. Relationship between Metal Exposures, Dietary Macronutrient Intake, and Blood Glucose Levels of Informal Electronic Waste Recyclers in Ghana. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:12768. [PMID: 36232070 PMCID: PMC9564681 DOI: 10.3390/ijerph191912768] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 09/29/2022] [Accepted: 10/01/2022] [Indexed: 06/16/2023]
Abstract
While metal exposures are generally high among informal electronic waste (e-waste) recyclers, the joint effect of metals and dietary macronutrients on their metabolic health is unknown. Therefore, we investigated the relationship between metal exposures, dietary macronutrients intake, and blood glucose levels of e-waste recyclers at Agbogbloshie using dietary information (48-h recall survey), blood metals (Pb & Cd), and HbA1C levels of 151 participants (100 e-waste recyclers and 51 controls from the Accra, Ghana) in March 2017. A linear regression model was used to estimate the joint relationship between metal exposures, dietary macronutrient intake, and blood glucose levels. Except for dietary proteins, both groups had macronutrient deficiencies. Diabetes prevalence was significantly higher among controls. Saturated fat, OMEGA-3, and cholesterol intake were associated with significant increases in blood glucose levels of recyclers. In a joint model, while 1 mg of cholesterol consumed was associated with a 0.7% increase in blood glucose, 1 g/L of Pb was found to significantly increase blood glucose levels by 0.9% among recyclers. Although the dietary consumption of cholesterol and fat was not high, it is still possible that exposure to Pb and Cd may still increase the risk of diabetes among both e-waste recyclers and the general population.
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Affiliation(s)
- Fayizatu Dawud
- School of Public Health, University of Ghana, Legon, Accra P.O. Box LG13, Ghana
| | - Sylvia Akpene Takyi
- School of Public Health, University of Ghana, Legon, Accra P.O. Box LG13, Ghana
| | - John Arko-Mensah
- School of Public Health, University of Ghana, Legon, Accra P.O. Box LG13, Ghana
| | | | - Godfred Egbi
- Noguchi Memorial Institute for Medical Research, University of Ghana, Legon, Accra P.O. Box LG 581, Ghana
| | - Ebenezer Ofori-Attah
- Noguchi Memorial Institute for Medical Research, University of Ghana, Legon, Accra P.O. Box LG 581, Ghana
| | - Serwaa Akoto Bawuah
- School of Public Health, University of Ghana, Legon, Accra P.O. Box LG13, Ghana
| | - Julius N. Fobil
- School of Public Health, University of Ghana, Legon, Accra P.O. Box LG13, Ghana
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25
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Liu R, Ma S, Chen D, Li G, Yu Y, Fan R, An T. Human exposure to BTEX emitted from a typical e-waste recycling industrial park: External and internal exposure levels, sources, and probabilistic risk implications. JOURNAL OF HAZARDOUS MATERIALS 2022; 437:129343. [PMID: 35716574 DOI: 10.1016/j.jhazmat.2022.129343] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 05/31/2022] [Accepted: 06/07/2022] [Indexed: 06/15/2023]
Abstract
Benzene, toluene, ethylbenzene, and xylene (BTEX) can be released during extensive activities associated with the disposal of electronic waste (e-waste), which might pose deleterious health effects on workers. In this study, pollution profiles of BTEX in air and their urinary excretive profiles in occupational workers were investigated in a typical e-waste recycling industrial park. The results showed that the workers in the park were generally exposed to high levels of BTEX. The median levels of urinary metabolites were approximately 6-orders of magnitude higher than those of unmetabolized BTEX, indicating that pollutants efficiently metabolize at those occupational levels. The analytes presented differential profiles in external and internal exposure. Among the metabolites, significant correlation (p < 0.05) was observed between N-acetyl-S-benzyl-L-cysteine (S-BMA) concentration and atmospheric individual BTEX derived from the e-waste recycling area, suggesting that S-BMA is a potential marker for BTEX exposure to e-waste occupational workers. Notably, 95.2 % of all the workers showed a cumulative carcinogenic risk induced by BTEX exposure via inhalation, with 99.9 % of the carcinogenic risk distribution based on concentration of benzene metabolite (N-acetyl-S-(phenyl)-L-cysteine) exceeding 1.0E-6. This study holds potential in providing valuable inferences for the development of remediation strategies focusing on BTEX exposure reduction to protect workers' health at e-waste recycling industries.
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Affiliation(s)
- Ranran Liu
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China; Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Guangdong Technology Research Center for Photocatalytic Technology Integration and Equipment Engineering, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Shengtao Ma
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China; Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Guangdong Technology Research Center for Photocatalytic Technology Integration and Equipment Engineering, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Daijin Chen
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China; Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Guangdong Technology Research Center for Photocatalytic Technology Integration and Equipment Engineering, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Guiying Li
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China; Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Guangdong Technology Research Center for Photocatalytic Technology Integration and Equipment Engineering, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Yingxin Yu
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China; Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Guangdong Technology Research Center for Photocatalytic Technology Integration and Equipment Engineering, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Ruifang Fan
- Guangdong Provincial Engineering Technology Research Center for Drug and Food Biological Resources Processing and Comprehensive Utilization, School of Life Sciences, South China Normal University, 510631, China
| | - Taicheng An
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China; Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Guangdong Technology Research Center for Photocatalytic Technology Integration and Equipment Engineering, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China.
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26
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López M, Reche C, Pérez-Albaladejo E, Porte C, Balasch A, Monfort E, Eljarrat E, Viana M. E-waste dismantling as a source of personal exposure and environmental release of fine and ultrafine particles. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 833:154871. [PMID: 35364180 DOI: 10.1016/j.scitotenv.2022.154871] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 03/01/2022] [Accepted: 03/23/2022] [Indexed: 06/14/2023]
Abstract
Electronic waste (WEEE; from TV screens to electric toothbrushes) is one of the fastest growing waste streams in the world. Prior to recycling, e-waste components (metals, wood, glass, etc.) are processed by shredding, grinding and chainsaw cutting. These activities generate fine and ultrafine particle emissions, containing metals as well as organics (e.g., flame retardants), which have high potential for human health impacts as well as for environmental release. In this work, release of fine and ultrafine particles, and their exposure impacts, was assessed in an e-waste recycling facility under real-world operating conditions. Parameters monitored were black carbon, particle mass concentrations, ultrafine particles, and aerosol morphology and chemical composition. Potential health impacts were assessed in terms of cytotoxicity (cell viability) and oxidative stress (ROS) on <2 μm particles collected in liquid suspension. Environmental release of WEEE aerosols was evidenced by the higher particle concentrations monitored outside the facility when compared to the urban background (43 vs.11 μgPM2.5/m3, respectively, or 2.4 vs. 0.2 μgCa/m3). Inside the facility, concentrations were higher in the top than on the ground floor (PM2.5 = 147 vs. 78 μg/m3, N = 15.4 ∗ 104 vs. 8.7 ∗ 104/cm3, BC = 12.4 vs. 7.2 μg/m3). Ventilation was a key driver of human exposure, in combination with particle emissions. Key chemical tracers were Ca (from plastic fillers) and Fe (from wiring and other metal components). Y, Zr, Cd, Pb, P and Bi were markers of cathode TV recycling, and Li and Cr of grinding activities. While aerosols did not evidence cytotoxic effects, ROS generation was detected in 4 out of the 12 samples collected, associated to the ultrafine fraction. We conclude on the need for studies on aerosol emissions from WEEE facilities, especially in Europe, due to their demonstrable environmental and human health impacts and the rapidly growing generation of this type of waste.
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Affiliation(s)
- M López
- Institute of Environmental Assessment and Water Research (IDAEA-CSIC), C/ Jordi Girona 18, 08034 Barcelona, Spain; Barcelona University, Chemistry Faculty, C/ de Martí i Franquès, 1-11, 08028 Barcelona, Spain.
| | - C Reche
- Institute of Environmental Assessment and Water Research (IDAEA-CSIC), C/ Jordi Girona 18, 08034 Barcelona, Spain
| | - E Pérez-Albaladejo
- Institute of Environmental Assessment and Water Research (IDAEA-CSIC), C/ Jordi Girona 18, 08034 Barcelona, Spain
| | - C Porte
- Institute of Environmental Assessment and Water Research (IDAEA-CSIC), C/ Jordi Girona 18, 08034 Barcelona, Spain
| | - A Balasch
- Institute of Environmental Assessment and Water Research (IDAEA-CSIC), C/ Jordi Girona 18, 08034 Barcelona, Spain; Barcelona University, Chemistry Faculty, C/ de Martí i Franquès, 1-11, 08028 Barcelona, Spain
| | - E Monfort
- Institute of Ceramic Technology (ITC)-AICE - Universitat Jaume I, Campus Universitario Riu Sec, Av. Vicent Sos Baynat s/n, 12006 Castellón, Spain
| | - E Eljarrat
- Institute of Environmental Assessment and Water Research (IDAEA-CSIC), C/ Jordi Girona 18, 08034 Barcelona, Spain
| | - M Viana
- Institute of Environmental Assessment and Water Research (IDAEA-CSIC), C/ Jordi Girona 18, 08034 Barcelona, Spain
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Abubakar A, Zangina AS, Maigari AI, Badamasi MM, Ishak MY, Abdullahi AS, Haruna JA. Pollution of heavy metal threat posed by e-waste burning and its assessment of human health risk. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:61065-61079. [PMID: 35435558 DOI: 10.1007/s11356-022-19974-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Accepted: 03/25/2022] [Indexed: 06/14/2023]
Abstract
Improper treatment during recycling of e-waste materials by means of open burning is on the rise which has led to an increase in air pollution. This study looked at heavy metal concentrations, concentrations in relation to threshold values, and assessments of risk for noncarcinogenic and cancer risk threat. The Microwave Plasma-Atomic Emission Spectrometry (MP-AES 4210) series instrument of Agilent Technology, United States of America (USA), was used in analyzing heavy metal (Cd, Cu, and Pb) concentrations. The result of the analysis of the Kuka Bulukiya treatment point revealed that Pb has the highest mean concentration of 0.0693 ppm, Cu 0.0525 parts per million (PPM), and Cd 0.0042 ppm. The mean concentration at PRP Gidan Ruwa for Cd was found to be 0.0059 ppm, Cu 0.0363 ppm, and Pb 0.049 ppm. The result of the adult and children population calculated shows that the hazard quotient (HQ) and hazard index (HI) values are not up to 1 in all the pathways (inhalation, ingestion, and dermal) at both treatment points (1.2 ˟ 10-4 and 9.8 ˟ 10-5) and (6.4 ˟ 10-4 and 5.9 ˟ 10-4), respectively. The cancer risk for Kuka Bulukiya 6 ˟ 10-10 and PRP G/Ruwa 5 ˟ 10-10 for adults and 7 ˟ 10-10 and 4 ˟ 10-10 for children were both lower than the threshold set for cancer risk by the United States Environmental Protection Agency (USEPA). This meant that both adults and children were not at risk of cancer and noncarcinogenic threat based on the assessment in this study. The study concluded that informal e-waste burning has substantially helped in the relatively high levels of air pollution identified in the treatment points and in turn posed environmental and public health concerns to people around the area. This study recommends that samples of the vegetable products at the PRP G/Ruwa treatment point should be investigated immediately and adequate restrictions and regulations should be enacted and enforced in order to safeguard the environment and the populace. There is need for caution from the authorities to avert the possible implications (e-waste extractors and the public) of being affected with noncarcinogenic or carcinogenic ailments over time.
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Affiliation(s)
- Ahmed Abubakar
- Faculty of Forestry and Environment, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia.
| | - Aminu Sulaiman Zangina
- National Biotechnology Development Agency, North-West Zone, Katsina, 2140, P.M.B, Nigeria
| | | | | | - Mohd Yusoff Ishak
- Faculty of Forestry and Environment, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | | | - Jamilu Adamu Haruna
- Pollution Control Laboratory, Kano State Ministry of Environment, Kano, Nigeria
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28
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Barkhordari A, I Guzman M, Ebrahimzadeh G, Sorooshian A, Delikhoon M, Jamshidi Rastani M, Golbaz S, Fazlzadeh M, Nabizadeh R, Norouzian Baghani A. Characteristics and health effects of particulate matter emitted from a waste sorting plant. WASTE MANAGEMENT (NEW YORK, N.Y.) 2022; 150:244-256. [PMID: 35868092 DOI: 10.1016/j.wasman.2022.07.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 06/01/2022] [Accepted: 07/13/2022] [Indexed: 06/15/2023]
Abstract
Solid waste components can be recycled in waste paper and cardboard sorting plants (WPCSP) through a multistep process. This work collected 15 samples every six days from each of the 9 points selected to study the processes taking place in a WPCSP (135 particulate matter samples total). Examining the concentration and size fraction of particulate matter (i.e., PM1, PM2.5 and PM10) in WPCSP is an essential issue to notify policy makers about the health impacts on exposed workers. The major activities for increasing of the concentration of PM in various processing units in the WPCSP, especially in hand-picking routes I and II were related to manual dismantling, mechanical grinding, mechanical agitation, and separation and movement of waste. The results of this work showed that a negative correlation between temperature and particulate matter size followed the order PM10 > PM2.5 > PM1. Exposure to PM2.5 and PM10 in the WPCSP lead to possible risk (HI = 5.561 and LTCRs = 3.41 × 10-6 to 9.43 × 10-5 for PM2.5 and HI = 7.454 for PM10). The exposure duration and the previous concentrations had the most effect on the ILCRs and HQs for PM2.5 and PM10 in all sampling sites. Hence, because WPCSP are infected indoor environments (I/O ratio > 1), the use of control methods such as isolation of units, misting systems, blower systems equipped with bag houses, protective equipment, a mechanical ventilation system, and additional natural ventilation can reduce the amount of suspended PM, enhance worker safety, and increase the recycling rate.
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Affiliation(s)
- Abdullah Barkhordari
- Environmental and Occupational Health Research Center, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Marcelo I Guzman
- Department of Chemistry, University of Kentucky, Lexington, KY 40506, USA
| | - Gholamreza Ebrahimzadeh
- Department of Environmental Health Engineering, Faculty of Health, Zabol University of Medical Sciences, Zabol, Iran
| | - Armin Sorooshian
- Department of Chemical and Environmental Engineering, University of Arizona, Tucson, AZ, USA; Department of Hydrology and Atmospheric Sciences, University of Arizona, Tucson, AZ, USA
| | - Mahdieh Delikhoon
- Department of Occupational Health Engineering, School of Public Health, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mehdi Jamshidi Rastani
- Environmental and Occupational Health Research Center, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Somayeh Golbaz
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mehdi Fazlzadeh
- Department of Environmental Health, School of Health, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Ramin Nabizadeh
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran; Center for Air Pollution Research (CAPR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran.
| | - Abbas Norouzian Baghani
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran; Center for Air Pollution Research (CAPR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran.
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29
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Liu K, Huang S, Jin Y, Ma L, Wang WX, Lam JCH. A green slurry electrolysis to recover valuable metals from waste printed circuit board (WPCB) in recyclable pH-neutral ethylene glycol. JOURNAL OF HAZARDOUS MATERIALS 2022; 433:128702. [PMID: 35395522 DOI: 10.1016/j.jhazmat.2022.128702] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 02/25/2022] [Accepted: 03/11/2022] [Indexed: 06/14/2023]
Abstract
The continuous growth of e-waste necessitates an efficient method to recover their metal contents to improve their recycling rate. The successful recovery of the metallic component from Waste Electrical and Electronic Equipment (WEEE) can generate great economic benefits to incentivize the industrial recycling effort. In this study, we report the use of slurry electrolysis (SE) in pH-neutral ethylene glycol (EG) electrolyte to extract and recover the metallic component from waste printed circuit broad (WPCB) powder. The system operates at room temperature and atmospheric pressure, and the electrolyte can be recycled multiple times with no signs of chemical degradation. The EG electrolyte system can oxidize the metallic component without triggering anodic gas evolution, which allowed us to incorporate a reticulated vitreous carbon (RVC) foam anode to maximize the capture and oxidation of the metal content. The system demonstrated up to 99.1% Faraday efficiency for the cathodic metal deposition and could recover Cu from the WPCB powder in a selective manner of 59.7% in the presence of 12 other metals. The SE reaction system was also scalable and displayed no compromises on the Cu recovery selectivity. With the ability to leach and recover metallic content from WPCB in a mild and chemically benign condition, the SE system displayed much promise to be adapted for industrial-scale metal recovery from WPCB.
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Affiliation(s)
- Kaixin Liu
- School of Energy and Environment, City University of Hong Kong, Kowloon Tong, Hong Kong SAR
| | - Shuquan Huang
- School of Energy and Environment, City University of Hong Kong, Kowloon Tong, Hong Kong SAR
| | - Yangxin Jin
- School of Energy and Environment, City University of Hong Kong, Kowloon Tong, Hong Kong SAR
| | - Lan Ma
- State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon Tong, Hong Kong SAR
| | - Wen-Xiong Wang
- School of Energy and Environment, City University of Hong Kong, Kowloon Tong, Hong Kong SAR; State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon Tong, Hong Kong SAR
| | - Jason Chun-Ho Lam
- School of Energy and Environment, City University of Hong Kong, Kowloon Tong, Hong Kong SAR; State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon Tong, Hong Kong SAR; Shenzhen Research Institute, City University of Hong Kong, Shenzhen, China.
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Roy H, Rahman TU, Suhan MBK, Al-Mamun MR, Haque S, Islam MS. A comprehensive review on hazardous aspects and management strategies of electronic waste: Bangladesh perspectives. Heliyon 2022; 8:e09802. [PMID: 35815143 PMCID: PMC9263878 DOI: 10.1016/j.heliyon.2022.e09802] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 04/07/2022] [Accepted: 06/22/2022] [Indexed: 01/19/2023] Open
Abstract
Electronic waste (e-waste) contains a variety of electronic components e.g., metals, non-metals, plastics, cables, etc. The excessive generation of e-waste has become a significant concern in the last few decades. The current global e-waste generation is 57.4 million metric tons (MMT) per year. Asia produces the highest amount of e-waste (24.9 MMT) followed by America, Europe, Africa, and Oceania. In Bangladesh, e-waste produces from two sources: its own consumption of electronic devices, which is 0.6 MMT, and imported e-waste from ship breaking yards that is 2.5 MMT in 2021. However, inadequate information on the current state of e-waste generation and management systems in Bangladesh has created a void to establish the future direction for proper handling of e-waste. In this work, the Bangladesh perspective of e-waste has been analyzed. The environmental, health economical forfeiture of e-waste has been discussed. The development of government legislations regarding e-waste have been stated. The establishment of e-waste management has been designed by the life cycle assessment (LCA) and material flow analysis (MFA) models. Moreover, a holistic approach for understanding the possible hazards, the economic feasibility of e-waste processing and viable management models for e-waste in Bangladesh was endeavored in this work to propose systematic future directions and recommendations to improve the current e-waste scenario of Bangladesh.
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Affiliation(s)
- Hridoy Roy
- Department of Chemical Engineering, Bangladesh University of Engineering and Technology, Dhaka, 1000, Bangladesh
| | - Tanzim Ur Rahman
- Department of Chemical Engineering, Bangladesh University of Engineering and Technology, Dhaka, 1000, Bangladesh
| | - Md. Burhan Kabir Suhan
- Department of Chemical Engineering, Bangladesh University of Engineering and Technology, Dhaka, 1000, Bangladesh
| | - Md. Rashid Al-Mamun
- Department of Chemical Engineering, Jashore University of Science and Technology, Jashore, 7408, Bangladesh
| | - Shafaul Haque
- Department of Chemical Engineering, Bangladesh University of Engineering and Technology, Dhaka, 1000, Bangladesh
| | - Md. Shahinoor Islam
- Department of Chemical Engineering, Bangladesh University of Engineering and Technology, Dhaka, 1000, Bangladesh
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Jia X, Dong T, Han Y, Yue Z, Zhang P, Ren J, Wang Y, Wu W, Yang H, Guo H, Zhang GH, Cao J. Identifying the dose response relationship between seminal metal at low levels and semen quality using restricted cubic spline function. CHEMOSPHERE 2022; 295:133805. [PMID: 35134404 DOI: 10.1016/j.chemosphere.2022.133805] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 01/10/2022] [Accepted: 01/28/2022] [Indexed: 06/14/2023]
Abstract
Environmental exposure to metals, including essential and nonessential elements, may be related to semen quality. Our goal was to explore the continuous relationship between seminal metals and sperm parameters. A restricted cubic spline (RCS) was applied to automatic selection criteria to ascertain the optimal smoothing degree. We recruited 841 male volunteers from Henan Province, China. Eighteen seminal metals, namely Al, Cr, Mn, Cu, Zn, Se, As, Ni, Cd, Pb, Co, V, Rb, Ag, Ba, TI, Fe, and Li, and 21 semen parameters were detected. Seminal malondialdehyde (MDA) was also detected to express oxidative stress. We revealed a non-linear relationship of the vanadium and chromium exposure to semen parameters. There were inverse 'U' shapes found between seminal Cr and sperm concentrations, total sperm count, and semen quality. The best semen quality was observed when the seminal Cr concentration was 5.05 ppb, and an increase or decrease in chromium concentration led to decreased semen quality. The V concentration was associated with reduced sperm concentration, total sperm count, normal morphology, and progressive motility at high doses (V > 0.58 ppb). Seminal MDA had a strong adverse association with sperm motility parameters, such as curve line velocity (VCL) (P < 0.001), straight line velocity (VSL) (P = 0.004), velocity of average path (VAP) (P < 0.001), and lateral head movement (ALH) (P = 0.001), whereas it was adversely associated with seminal Zn (β [95% confidence interval (CI)], -0.28(-0.41-0.16), P < 0.001) after adjusting for confounding factors. Our findings represent the curves of the dose-response relationship between seminal Cr, seminal V, and semen quality, in which seminal MDA was a good indicator of sperm movement. These models provide new insight into the dose-relationship between metal exposure and semen quality, and further investigation is needed to validate this.
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Affiliation(s)
- Xueshan Jia
- Henan International Collaborative Laboratory for Health Effects and Intervention of Air Pollution, School of Public Health, Xinxiang Medical University, 601 Jinsui Road, Xinxiang, 453003, China; Reproductive Center, Henan Provincial Peoples Hospital, Zhengzhou, 450003, China
| | - Tingting Dong
- Henan International Collaborative Laboratory for Health Effects and Intervention of Air Pollution, School of Public Health, Xinxiang Medical University, 601 Jinsui Road, Xinxiang, 453003, China
| | - Yufen Han
- Puyang Maternity and Child Care Centers, 59 South Section of Kaizhou Road, Puyang, 457000, China
| | - Zhongyi Yue
- Henan International Collaborative Laboratory for Health Effects and Intervention of Air Pollution, School of Public Health, Xinxiang Medical University, 601 Jinsui Road, Xinxiang, 453003, China
| | - Pingyang Zhang
- Henan International Collaborative Laboratory for Health Effects and Intervention of Air Pollution, School of Public Health, Xinxiang Medical University, 601 Jinsui Road, Xinxiang, 453003, China
| | - Jingchao Ren
- Henan International Collaborative Laboratory for Health Effects and Intervention of Air Pollution, School of Public Health, Xinxiang Medical University, 601 Jinsui Road, Xinxiang, 453003, China
| | - Yongbin Wang
- Henan International Collaborative Laboratory for Health Effects and Intervention of Air Pollution, School of Public Health, Xinxiang Medical University, 601 Jinsui Road, Xinxiang, 453003, China
| | - Weidong Wu
- Henan International Collaborative Laboratory for Health Effects and Intervention of Air Pollution, School of Public Health, Xinxiang Medical University, 601 Jinsui Road, Xinxiang, 453003, China
| | - Huan Yang
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Army Medical University, Chongqing, China
| | - Haibin Guo
- Reproductive Center, Henan Provincial Peoples Hospital, Zhengzhou, 450003, China.
| | - Guang-Hui Zhang
- Henan International Collaborative Laboratory for Health Effects and Intervention of Air Pollution, School of Public Health, Xinxiang Medical University, 601 Jinsui Road, Xinxiang, 453003, China; Department of Environmental Health, College of Preventive Medicine, Army Medical University, Chongqing, China.
| | - Jia Cao
- Henan International Collaborative Laboratory for Health Effects and Intervention of Air Pollution, School of Public Health, Xinxiang Medical University, 601 Jinsui Road, Xinxiang, 453003, China; Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Army Medical University, Chongqing, China.
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32
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Lin S, Ali MU, Zheng C, Cai Z, Wong MH. Toxic chemicals from uncontrolled e-waste recycling: Exposure, body burden, health impact. JOURNAL OF HAZARDOUS MATERIALS 2022; 426:127792. [PMID: 34802823 DOI: 10.1016/j.jhazmat.2021.127792] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 10/30/2021] [Accepted: 11/11/2021] [Indexed: 06/13/2023]
Abstract
Uncontrolled electronic-waste (e-waste) recycling processes have induced serious environmental pollution and human health impacts. This paper reviewed studies on the wide range of toxic chemicals through the use of primitive recycling techniques, their transfer to various ecological compartments, and subsequent health impacts. Results indicated that local food items were heavily polluted by the pollutants emitted, notably heavy metals in vegetables, rice, fish and seafood, and persistent organic pollutants (POPs) in livestock. Dietary exposure is the most important exposure pathway. The associations between exposure to e-waste and high body burdens of these pollutants were evident. It seems apparent that toxic chemicals emitted from e-waste activities are causing a number of major illnesses related to cardiovascular, digestive and respiratory systems, according to the information provided by a local hospital (Taizhou, an e-waste recycling hot spot in China). More epidemiological data should be made available to the general public. It is envisaged that there are potential dangers of toxic chemicals passing on to the next generation via placental transfer and lactation. There is a need to monitor the development and health impacts of infants and children, born and brought up in the e-waste sites.
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Affiliation(s)
- Siyi Lin
- State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, Southern University of Science and Technology, Shenzhen 518055, China; State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, China
| | - Muhammad Ubaid Ali
- State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, Southern University of Science and Technology, Shenzhen 518055, China
| | - Chunmiao Zheng
- State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, Southern University of Science and Technology, Shenzhen 518055, China
| | - Zongwei Cai
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, China
| | - Ming Hung Wong
- State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, Southern University of Science and Technology, Shenzhen 518055, China; Consortium on Health, Environment, Education and Research (CHEER), Department of Science and Environmental Studies, The Education University of Hong Kong, Hong Kong, China.
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33
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Okwu O, Hursthouse A, Viza E, Idoko L. New Models to Reduce the Health Risks of Informal WEEE Recyclers in MTN Phone Village, Rumukurushi, Port Harcourt, Nigeria. TOXICS 2022; 10:toxics10020084. [PMID: 35202270 PMCID: PMC8874416 DOI: 10.3390/toxics10020084] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 02/08/2022] [Accepted: 02/09/2022] [Indexed: 01/25/2023]
Abstract
Waste electrical and electronic equipment (WEEE) management in Port Harcourt, an oil-producing city in Nigeria, has become an environmental challenge for the location. WEEE recycling is predominantly managed by informal recyclers, who lack the skills to perform risk-free recycling, hence raising health risks to individuals in associated communities and degrading the environment. Formal recycling, which embraces the best practices for effective WEEE management, is faced with several limitations, such as a lack of detailed guidelines on waste recycling, reuse, and final disposal techniques, with no opportunities for landfilling. A qualitative approach was adopted for this study. Data were gathered via questionnaires and analysed graphically. A background literature review of the assessment of informal recycling methods and associated challenges was performed. Hence, a new concept for the local management of WEEE processing was introduced. This concept limits the role of informal recyclers to WEEE collection. In this case, informal recyclers are paid for WEEE collection; they no longer engage in further WEEE processing. The results show that 48% and 40% agree to partner and collaborate with government agencies, respectively. Conversely, 52% and 40% agree and strongly agree, respectively, to limit their activities to WEEE collection only if the government is willing to pay for the services.
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Affiliation(s)
- Ogechukwu Okwu
- School of Computing, Engineering & Physical Sciences, University of the West of Scotland, Paisley PA1 2BE, UK; (A.H.); (E.V.)
- Correspondence:
| | - Andrew Hursthouse
- School of Computing, Engineering & Physical Sciences, University of the West of Scotland, Paisley PA1 2BE, UK; (A.H.); (E.V.)
| | - Evi Viza
- School of Computing, Engineering & Physical Sciences, University of the West of Scotland, Paisley PA1 2BE, UK; (A.H.); (E.V.)
| | - Linus Idoko
- Department of Electronic & Computer Engineering, Veritas University, Bwari, Abuja 900001, Nigeria;
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A Review on Global E-Waste Management: Urban Mining towards a Sustainable Future and Circular Economy. SUSTAINABILITY 2022. [DOI: 10.3390/su14020647] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The trending need for smarter electrical and electronic equipment (EEE) is surging globally by the year and is giving rise to huge amounts of outdated EEE going into landfills. This has caused enormous threats to our environment and the health of living beings due to its unsustainable ways of collection, treatment and disposal of waste EEE or E-waste. With increasing E-waste, the formal sectors lack infrastructure, technology and expertise required to collect and process the E-waste in an environmentally sound manner. This article is intended to bring out the global best practices in the field of E-waste management, to shed light on the importance of policy implementation, technology requirement and social awareness to arrive at a sustainable and circular economy. Although about 71% of the world’s populace has incorporated E-waste legislation, there is a need to enforce and implement a common legal framework across the globe. The article explains the gap created among the stakeholders and their knowledge on the roles and responsibilities towards a legalized E-waste management. It further explains the lack of awareness on extended producer responsibility (EPR) and producer responsibility schemes. Despite various legislations in force, numerous illegal practices such as acid leaching, open incineration, illegal dumping carried out by the informal sector are causing harm to the environment, natural resources and the safety of unorganized and unskilled labor. The article discusses the crucial need for awareness amongst stakeholders, consumer behavior and the global challenges and opportunities in this field to achieve a low-carbon, circular economy. To conclude, the article highlights the importance of common legal framework, EPR and licenses, transformation of the informal sector, benchmark technologies, responsibilities of various stakeholders and entrepreneurial opportunities to enhance the formal capacity. The article wholly advocates for transparency, accountability and traceability in the E-waste recycling chain, thus creating a greener environment and protecting our planet and natural resources for future generations.
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Kwarteng L, Devasurendra AM, Laskaris Z, Arko-Mensah J, Amoabeng Nti AA, Takyi S, Acquah AA, Dwomoh D, Basu N, Robins T, Fobil JN, Batterman S. Occupational exposures to particulate matter and PM 2.5-associated polycyclic aromatic hydrocarbons at the Agbogbloshie waste recycling site in Ghana. ENVIRONMENT INTERNATIONAL 2022; 158:106971. [PMID: 34991242 PMCID: PMC8745907 DOI: 10.1016/j.envint.2021.106971] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 11/01/2021] [Accepted: 11/02/2021] [Indexed: 05/09/2023]
Abstract
Electronic waste (e-waste) disposal and recycling activities such as burning and smelting can emit particulate matter (PM), polycyclic aromatic hydrocarbons (PAHs), and other pollutants that expose workers and nearby communities. At informal e-waste recycling facilities, both emission controls and protective measures for workers are absent. This study characterizes personal exposures (breathing zone) of PM and PAHs of e-waste workers at the large Agbogbloshie e-waste site in Accra, Ghana. We collected gravimetric and optical measurements of PM2.5 and PM10 using shift samples for workers and for an age- and gender-matched reference population. PM2.5 filters were analyzed for 26 PAHs using gas chromatography/mass spectroscopy. Among e-waste workers, PM2.5 and PM10 concentrations were 99 ± 56 and 218 ± 158 µg/m3 (median ± interquartile range, optical measurements), respectively; these levels were 78 and 57% higher, respectively, than levels measured at a fixed site that was centrally located at the waste site. In the reference community, breathing zone PM2.5 and PM10 levels were lower, 49 ± 20 and 131 ± 108 µg/m3, respectively, and the fraction of coarse PM was larger. We detected all 26 target PAHs, of which naphthalene and phenanthrene were the most abundant. PAH concentrations were weakly correlated to PM levels, but PAH abundances, representing the fraction of PAH mass to the total PM2.5 mass collected, were strongly and inversely correlated to PM levels, suggesting multiple and different sources of PAHs and PM that affected exposures. Both PM and PAH levels were elevated for workers performing burning and dismantling, and both exceeded standards or risk-based guidelines, e.g., lifetime excess cancer risks for several PAHs were in the 10-4 to 10-6 range, indicating the need to reduce emissions as well as provide respiratory protection. The study emphasizes the importance of using personal and shift samples to accurately characterize worker exposure.
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Affiliation(s)
- Lawrencia Kwarteng
- Department of Biological, Environmental & Occupational Health Sciences, School of Public Health, University of Ghana, P.O. Box LG13, Accra, Ghana
| | - Amila M Devasurendra
- Department of Environmental Health Sciences, University of Michigan, 1415 Washington Heights, Ann Arbor, MI 48109, USA
| | - Zoey Laskaris
- Department of Epidemiology, University of Michigan, 1415 Washington Heights, Ann Arbor, MI 48109, USA
| | - John Arko-Mensah
- Department of Biological, Environmental & Occupational Health Sciences, School of Public Health, University of Ghana, P.O. Box LG13, Accra, Ghana
| | - Afua A Amoabeng Nti
- Department of Biological, Environmental & Occupational Health Sciences, School of Public Health, University of Ghana, P.O. Box LG13, Accra, Ghana
| | - Sylvia Takyi
- Department of Biological, Environmental & Occupational Health Sciences, School of Public Health, University of Ghana, P.O. Box LG13, Accra, Ghana
| | - Augustine A Acquah
- Department of Biological, Environmental & Occupational Health Sciences, School of Public Health, University of Ghana, P.O. Box LG13, Accra, Ghana
| | - Duah Dwomoh
- Department of Biostatistics, School of Public Health, University of Ghana, P.O. Box LG13, Accra, Ghana
| | - Nil Basu
- Faculty of Agricultural and Environmental Sciences, McGill University, Montréal, QC H9X 3V9, Canada
| | - Thomas Robins
- Department of Environmental Health Sciences, University of Michigan, 1415 Washington Heights, Ann Arbor, MI 48109, USA
| | - Julius N Fobil
- Department of Biological, Environmental & Occupational Health Sciences, School of Public Health, University of Ghana, P.O. Box LG13, Accra, Ghana
| | - Stuart Batterman
- Department of Environmental Health Sciences, University of Michigan, 1415 Washington Heights, Ann Arbor, MI 48109, USA.
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Parvez SM, Jahan F, Brune MN, Gorman JF, Rahman MJ, Carpenter D, Islam Z, Rahman M, Aich N, Knibbs LD, Sly PD. Health consequences of exposure to e-waste: an updated systematic review. Lancet Planet Health 2021; 5:e905-e920. [PMID: 34895498 PMCID: PMC8674120 DOI: 10.1016/s2542-5196(21)00263-1] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 09/07/2021] [Accepted: 09/09/2021] [Indexed: 05/28/2023]
Abstract
Electronic waste (e-waste) contains numerous chemicals harmful to human and ecological health. To update a 2013 review assessing adverse human health consequences of exposure to e-waste, we systematically reviewed studies reporting effects on humans related to e-waste exposure. We searched EMBASE, PsycNET, Web of Science, CINAHL, and PubMed for articles published between Dec 18, 2012, and Jan 28, 2020, restricting our search to publications in English. Of the 5645 records identified, we included 70 studies that met the preset criteria. People living in e-waste exposed regions had significantly elevated levels of heavy metals and persistent organic pollutants. Children and pregnant women were especially susceptible during the critical periods of exposure that detrimentally affect diverse biological systems and organs. Elevated toxic chemicals negatively impact on neonatal growth indices and hormone level alterations in e-waste exposed populations. We recorded possible connections between chronic exposure to e-waste and DNA lesions, telomere attrition, inhibited vaccine responsiveness, elevated oxidative stress, and altered immune function. The existence of various toxic chemicals in e-waste recycling areas impose plausible adverse health outcomes. Novel cost-effective methods for safe recycling operations need to be employed in e-waste sites to ensure the health and safety of vulnerable populations.
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Affiliation(s)
- Sarker M Parvez
- Children's Health and Environment Program, Child Health Research Centre, The University of Queensland, South Brisbane, QLD, Australia; Environmental Intervention Unit, Infectious Diseases Division, icddr,b, Dhaka, Bangladesh
| | - Farjana Jahan
- Environmental Intervention Unit, Infectious Diseases Division, icddr,b, Dhaka, Bangladesh
| | - Marie-Noel Brune
- Department of Environment, Climate Change and Health, WHO, Geneva, Switzerland
| | - Julia F Gorman
- Children's Health and Environment Program, Child Health Research Centre, The University of Queensland, South Brisbane, QLD, Australia
| | - Musarrat J Rahman
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - David Carpenter
- School of Public Health, Environmental Health Sciences, University at Albany, Albany, NY, USA
| | - Zahir Islam
- Children's Health and Environment Program, Child Health Research Centre, The University of Queensland, South Brisbane, QLD, Australia
| | - Mahbubur Rahman
- Environmental Intervention Unit, Infectious Diseases Division, icddr,b, Dhaka, Bangladesh
| | - Nirupam Aich
- Department of Civil, Structural and Environmental Engineering, School of Engineering and Applied Sciences, University at Buffalo, The State University of New York, Buffalo, NY, USA
| | - Luke D Knibbs
- School of Public Health, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
| | - Peter D Sly
- Children's Health and Environment Program, Child Health Research Centre, The University of Queensland, South Brisbane, QLD, Australia.
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Liu Y, Zhang J, Yang X, Yang W, Chen Y, Wang C. Efficient recovery of valuable metals from waste printed circuit boards by microwave pyrolysis. Chin J Chem Eng 2021. [DOI: 10.1016/j.cjche.2020.11.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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38
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Moradnia M, Attar HM, Heidari Z, Mohammadi F, Kelishadi R. Prenatal exposure to chromium (Cr) and nickel (Ni) in a sample of Iranian pregnant women: urinary levels and associated socio-demographic and lifestyle factors. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:63412-63421. [PMID: 34231141 DOI: 10.1007/s11356-021-15201-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 06/25/2021] [Indexed: 05/22/2023]
Abstract
Heavy metals have been well documented to pose detrimental health effects. The current study aimed to measure the concentration of chromium (Cr) and nickel (Ni) in urinary samples of Iranian pregnant females and determine their potential correlations with different lifestyle variables. The study was conducted in 2019-2020 in Isfahan, Iran, and the urine samples were collected from 140 pregnant women. The concentrations of Cr and Ni in the urinary samples were measured by inductively coupled plasma optical emission spectrometry (ICP-OES). Data on socio-demographic characteristics, use of cleaning products, and lifestyle profiles was collected by validated questionnaires. Cr and Ni were detected in 100% of urinary samples with the mean concentration of 4.1±3.4 and 7.5±4.8 μg/g creatinine, respectively. Significant associations were found between the mean concentration of Cr and Ni with using cooking utensils made of copper, aluminum, Teflon, steel, and enameled, as well as with cosmetic use, and second-hand smoking exposure during pregnancy. The results also showed that the mean urinary Ni and Cr concentrations were significantly different among individuals who consumed seafood and canned food (p-value <0.05). Furthermore, the mean of urinary Cr and Ni concentrations at high levels of physical activity and scratched utensils used was significantly different from the other categories (p-value <0.05). According to our findings, the lifestyle determinants and cosmetic products had superiority to socio-demographic characteristics in predicting urinary heavy metals in Iranian pregnant women.
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Affiliation(s)
- Maryam Moradnia
- Department of Environmental Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Hossein Movahedian Attar
- Department of Environmental Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran.
- Environment Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Zahra Heidari
- Department of Epidemiology and Biostatistics, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Farzaneh Mohammadi
- Department of Environmental Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
- Environment Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Roya Kelishadi
- Department of Pediatrics, Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
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Avenbuan ON, Meltzer GY, Awada C, Raja A, Holian A, Zelikoff JT. A contemporary review of electronic waste through the lens of inhalation toxicology. Inhal Toxicol 2021; 33:285-294. [PMID: 34715768 DOI: 10.1080/08958378.2021.1996493] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Inhalation is a significant route of exposure to toxic chemicals for electronic waste (e-waste) workers, especially for those whose activities take place in the informal sector. However, there remains a dearth of research on the health effects produced by the hazardous dismantling of e-waste and associated outcomes and biological mechanisms that occur as a result of inhalation exposure. This contemporary review highlights a number of the toxicological and epidemiological studies published on this topic to bring to light the many knowledge gaps that require further research, including in vitro and ex vivo investigations to address the health outcomes and underlying mechanisms of inhaled e-waste-associated pulmonary disease.
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Affiliation(s)
- Oyemwenosa N Avenbuan
- Department of Environmental Medicine, New York University Grossman School of Medicine, New York, NY, USA
| | - Gabriella Y Meltzer
- Department of Social and Behavioral Sciences, New York University School of Global Public Health, New York, NY, USA
| | - Christina Awada
- Department of Environmental Medicine, New York University Grossman School of Medicine, New York, NY, USA
| | - Amna Raja
- Department of Environmental Medicine, New York University Grossman School of Medicine, New York, NY, USA
| | - Andrij Holian
- Department of Biomedical and Pharmaceutical Sciences, University of Montana College of Health, Missoula, MT, USA
| | - Judith T Zelikoff
- Department of Environmental Medicine, New York University Grossman School of Medicine, New York, NY, USA
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40
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Analysis of Households' E-Waste Awareness, Disposal Behavior, and Estimation of Potential Waste Mobile Phones towards an Effective E-Waste Management System in Dubai. TOXICS 2021; 9:toxics9100236. [PMID: 34678932 PMCID: PMC8539238 DOI: 10.3390/toxics9100236] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 09/19/2021] [Accepted: 09/21/2021] [Indexed: 11/16/2022]
Abstract
During the recent decades, the world has seen ongoing economic and technological development which resulted in the generation of huge volumes of electrical and electronic waste (e-waste). In the Middle East, the United Arab Emirates (UAE) ranks among countries with large e-waste generation due to its consumers' high spending on electronic devices thereby resulting in a high obsolescence rate in the country. Accordingly, this study aims to analyze the e-waste management and recycling practices in the UAE. It takes Dubai as a case study and conducts a structured questionnaire to analyze households' awareness, consumption of electronic devices in general and mobile phones in particular, and the disposal behavior of e-waste. Waste mobile phones is taken as a key representative in this study, in which potential waste mobile phones is estimated using the Approximation 1 method in the period 2021-2030. Results from the survey illustrated gaps among households' awareness and disposal behavior of e-waste, where e-waste recycling rates were noticed to be low. Based on these gaps, strategies were proposed for an effective e-waste management system in the context of Dubai, and were supported by the proposal of an e-waste legislation framework in the UAE.
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Timonen H, Mylläri F, Simonen P, Aurela M, Maasikmets M, Bloss M, Kupri HL, Vainumäe K, Lepistö T, Salo L, Niemelä V, Seppälä S, Jalava PI, Teinemaa E, Saarikoski S, Rönkkö T. Household solid waste combustion with wood increases particulate trace metal and lung deposited surface area emissions. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 293:112793. [PMID: 34058452 DOI: 10.1016/j.jenvman.2021.112793] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 04/28/2021] [Accepted: 05/13/2021] [Indexed: 06/12/2023]
Abstract
In households, municipal solid waste (MSW) is often burned along with wood to get rid of waste, to help in ignition or simply to reduce fuel costs. The aim of this study was to characterize the influence of household waste combustion, along with wood, on the physical and chemical properties of particulate emissions in a flue gas of a masonry heater. The MSW burning alongside wood increased average particulate matter (PM) mass (65%), lung deposited surface areas (LDSA, 15%), black carbon (BC, 65%) concentrations and the average particle size in the flue gas. The influence of MSW was smaller during ignition and burning phases, but especially during fuel additions, the mass, number, and LDSA concentrations increased significantly and their size distributions moved towards larger particles. For wood burning the trace metal emissions were relatively low, but significant increase (3.3-179 -fold increase over cycle) was seen when MSW was burned along the wood. High ratios were observed especially during fuel addition phases but, depending on compounds, also during ignition and burning end phases. The highest ratios were observed for chloride compounds (HCl, KCl, NaCl). The observed increase in light-absorbing particle, trace metal and BC concentrations in flue gas when adding wood with MSW are likely to have negative impacts on air quality, visibility, human health and climate. Furthermore, metals may also affect the condition and lifetime of the burning device due to corrosion.
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Affiliation(s)
- H Timonen
- Atmospheric Composition Research, Finnish Meteorological Institute, P.O. Box 503, Helsinki, 00101, Finland.
| | - F Mylläri
- Aerosol Physics Laboratory, Physics Unit, Tampere University, P.O. Box 692, 33014, Tampere, Finland
| | - P Simonen
- Aerosol Physics Laboratory, Physics Unit, Tampere University, P.O. Box 692, 33014, Tampere, Finland
| | - M Aurela
- Atmospheric Composition Research, Finnish Meteorological Institute, P.O. Box 503, Helsinki, 00101, Finland; Aerosol Physics Laboratory, Physics Unit, Tampere University, P.O. Box 692, 33014, Tampere, Finland
| | - M Maasikmets
- Air and Climate Department, Estonian Environmental Research Centre, Tallinn, 10617, Estonia
| | - M Bloss
- Atmospheric Composition Research, Finnish Meteorological Institute, P.O. Box 503, Helsinki, 00101, Finland
| | - H-L Kupri
- Air and Climate Department, Estonian Environmental Research Centre, Tallinn, 10617, Estonia; Department of Environmental Engineering, Tallinn University of Technology, Tallinn, 19086, Estonia
| | - K Vainumäe
- Air and Climate Department, Estonian Environmental Research Centre, Tallinn, 10617, Estonia
| | - T Lepistö
- Aerosol Physics Laboratory, Physics Unit, Tampere University, P.O. Box 692, 33014, Tampere, Finland
| | - L Salo
- Aerosol Physics Laboratory, Physics Unit, Tampere University, P.O. Box 692, 33014, Tampere, Finland
| | - V Niemelä
- Dekati Ltd, Tykkitie 1, Kangasala, Tampere, 36240, Finland
| | - S Seppälä
- Atmospheric Composition Research, Finnish Meteorological Institute, P.O. Box 503, Helsinki, 00101, Finland
| | - P I Jalava
- Inhalation Toxicology Laboratory, Department of Environmental and Biological Sciences, University of Eastern Finland, P.O. Box 1627, 70211, Kuopio, Finland
| | - E Teinemaa
- Air and Climate Department, Estonian Environmental Research Centre, Tallinn, 10617, Estonia
| | - S Saarikoski
- Atmospheric Composition Research, Finnish Meteorological Institute, P.O. Box 503, Helsinki, 00101, Finland
| | - T Rönkkö
- Aerosol Physics Laboratory, Physics Unit, Tampere University, P.O. Box 692, 33014, Tampere, Finland
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Karakis I, Baumfeld Y, Landau D, Gat R, Shemesh N, Yitshak-Sade M, Tirosh O, Sarov B, Novack L. Exposure to metals and morbidity at eight years follow-up in women of childbearing age. Sci Rep 2021; 11:11429. [PMID: 34075123 PMCID: PMC8169725 DOI: 10.1038/s41598-021-90904-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Accepted: 05/13/2021] [Indexed: 12/12/2022] Open
Abstract
This exploratory study was aimed to investigate the link between toxic metal content in women's urine and their morbidity 2 years before and 6 years after the test. Concentrations of 25 metals in urine were analyzed for 111 pregnant women collected prior to delivery. All women were of Arab-Bedouin origin. Information on primary care and hospital visits during the study period was obtained. In a Poisson regression model, a health outcome was regressed over metal exposure and other factors. A Weighted Quantile Sum Regression (WQS) approach was used to indicate metals dominating in their possible impact on women's morbidity. Obesity was the most frequently diagnosed condition in this population (27.9%). Diagnoses in a neurological category accounted for 36.0%, asthma or respiratory-25.2%, psychiatric-12.6%, cardiovascular-14.4% and cancer or benign growth-for 13.5%. Based on WQS analysis, cancer and benign growth were mostly attributed to the increased levels of cadmium, cardiovascular outcomes were linked with lead, and obesity was found associated with elevated levels of nickel. Hematological, neurological and respiratory outcomes were attributed to multiple non-essential metals. The health and exposure profile of women in the study warrants a periodic biomonitoring in attempt to identify and reduce exposure to potentially dangerous elements.
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Affiliation(s)
- Isabella Karakis
- Environmental Epidemiology, Ministry of Health, Jerusalem, Israel
| | - Yael Baumfeld
- Obstetric and Gynecology, Soroka University Medical Center, Beer-Sheva, Israel
| | - Daniella Landau
- Neonatology Department, Soroka University Medical Center, Beer-Sheva, Israel
| | - Roni Gat
- Negev Environmental Health Research Institute, Soroka University Medical Center, Beer-Sheva, Israel
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Nofar Shemesh
- Department of Clinical Biochemistry and Pharmacology, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Maayan Yitshak-Sade
- Icahn School of Medicine At Mount Sinai, Department of Environmental Medicine and Public Health, New York, NY, USA
| | - Ofir Tirosh
- The Fredy and Nadine Herrmann Institute of Earth Sciences, The Hebrew University in Jerusalem, Jerusalem, Israel
| | - Batia Sarov
- Department of Public Health, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Lena Novack
- Negev Environmental Health Research Institute, Soroka University Medical Center, Beer-Sheva, Israel.
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel.
- Clinical Research Center, Soroka University Medical Center, POB 651, 84101, Beer-Sheva, Israel.
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Laskaris Z, Batterman SA, Arko-Mensah J, Mukherjee B, Fobil JN, O’Neill MS, Robins TG. Opportunities and challenges in reducing personal inhalation exposure to air pollution among electronic waste recovery workers in Ghana. Am J Ind Med 2021; 64:381-397. [PMID: 33522624 PMCID: PMC8046737 DOI: 10.1002/ajim.23229] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 12/22/2020] [Accepted: 01/04/2021] [Indexed: 11/12/2022]
Abstract
BACKGROUND Informal sector electronic waste (e-waste) recovery produces toxic emissions resulting from burning e-waste to recover valuable metals. OBJECTIVES To identify high-risk worker groups by measuring relative levels of personal inhalation exposure to particulate matter (PM) of fine (≤2.5 µm) and coarse (2.5-10 µm) fractions (PM2.5 and PM2.5-10, respectively) across work activities among e-waste workers, and to assess how wind conditions modify levels of PM by activity and site location. METHODS At the Agbogbloshie e-waste site, 170 partial-shift PM samples and time-activity data were collected from participants (N = 105) enrolled in the GeoHealth cohort study. Personal sampling included continuous measures of size-specific PM from the worker's breathing zone and time-activity derived from wearable cameras. Linear mixed models were used to estimate changes in personal PM2.5 and PM2.5-10 associated with activities and evaluate effect modification by wind conditions. RESULTS Mean (±standard deviation) personal PM2.5 and PM2.5-10 concentrations were 80 (± 81) and 123 (± 139) µg m-3 , respectively. The adjusted mean PM2.5 concentration for burning e-waste was 88 µg m-3 , a 28% increase above concentrations during non-recovery activities (such as eating). Transportation-related and burning activities were associated with the highest PM2.5-10 concentrations. Frequent changes in wind direction were associated with higher PM2.5 concentrations when burning, and high wind speeds with higher PM2.5-10 concentrations when dismantling e-waste downwind of the burning zone.
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Affiliation(s)
- Zoey Laskaris
- Department of Epidemiology, University of Michigan School
of Public Health, Ann Arbor, MI, United States of America
| | - Stuart A. Batterman
- Department of Environmental Health Sciences, University of
Michigan School of Public Health, Ann Arbor, MI, United States of America
| | - John Arko-Mensah
- Department of Biological, Environmental and Occupational
Health Sciences, University of Ghana School of Public Health, Accra, Ghana
| | - Bhramar Mukherjee
- Department of Biostatistics, University of Michigan School
of Public Health, Ann Arbor, MI, United States of America
| | - Julius N. Fobil
- Department of Biological, Environmental and Occupational
Health Sciences, University of Ghana School of Public Health, Accra, Ghana
| | - Marie S. O’Neill
- Department of Epidemiology, University of Michigan School
of Public Health, Ann Arbor, MI, United States of America
- Department of Environmental Health Sciences, University of
Michigan School of Public Health, Ann Arbor, MI, United States of America
| | - Thomas G. Robins
- Department of Environmental Health Sciences, University of
Michigan School of Public Health, Ann Arbor, MI, United States of America
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Environmental contamination and public health effects of electronic waste: an overview. JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE AND ENGINEERING 2021; 19:1209-1227. [PMID: 34150306 DOI: 10.1007/s40201-021-00654-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Accepted: 03/31/2021] [Indexed: 02/05/2023]
Abstract
Purpose In recent years, electronic waste has become the fastest growing waste stream globally with potential deleterious environmental and public health effects from its hazardous constituents. This review aims at providing an up-to-date information on the environmental and public health effects of e- wastes, and also identify research gaps that could form basis of further innovative studies on this important subject. Methods We carried out literature survey using several search engines. All available literature which reported directly on environmental contamination of air, soil, and water by e-wastes, and their effects on exposed plants, animals, and humans were used in other to generate an updated information. Results High production volume coupled with indiscriminate disposal and informal recycling has made electronic waste (e-waste) to become a global public and environmental health issue. E-waste is made up of different hazardous substances such as heavy metals and persistent organic pollutants with the capacity to contaminate the environment if processed or recycled inappropriately. Humans and animals become exposed to e-waste constituents via ingestion, inhalation, and dermal contact. Several health effects have been linked to e-wastes. The most susceptible were children, pregnant women, and workers in primitive recycling sites. Generation of e-waste is predicted to increase drastically in the next decade with the potential complex interactive effects of its constituents. Conclusion This review is an up-to-date assessment of studies and reports on e-waste environmental contamination and public health effects. The review has shown that e-waste contains constituents that caused adverse environmental effects and toxicity to the biota. However, there is an enormous data gap between exposure quantification and possible health effects. More studies are needed to elucidate and provide holistic information on environmental and public health dangers posed by e-waste constituents.
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Sahle-Demessie E, Mezgebe B, Dietrich J, Shan Y, Harmon S, Lee CC. Material recovery from electronic waste using pyrolysis: Emissions measurements and risk assessment. JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 2021; 9:10.1016/j.jece.2020.104943. [PMID: 33747764 PMCID: PMC7970511 DOI: 10.1016/j.jece.2020.104943] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Electronic waste (e-waste) generation has been growing in volume worldwide, and the diversity of its material composition is increasing. Sustainable management of this material is critical to achieving a circular-economy and minimizing environmental and public health risks. This study's objective was to investigate the use of pyrolysis as a possible technique to recover valuable materials and energy from different components of e-waste as an alternative approach for limiting their disposal to landfills. The study includes investigating the potential environmental impact of thermal processing of e-waste. The mass loss and change in e-waste chemicals during pyrolysis were also considered. The energy recovery from pyrolysis was made in a horizontal tube furnace under anoxic and isothermal conditions of selected temperatures of 300 °C, 400 °C, and 500 °C. Critical metals that include the rare earth elements and other metals (such as In, Co, Li) and valuable metals (Au, Ag, Pt group) were recovered from electronic components. Pyrolysis produced liquid and gas mixtures of organic compounds that can be used as fuels. Still, the process also emitted particulate matter and semi-volatile organic products, and the remaining ash contained leachable pollutants. Furthermore, toxicity characteristics leaching procedure (TCLP) of e-waste and partly oxidized products were conducted to measure the levels of pollutants leached before and after pyrolysis at selected temperatures. TCLP result revealed the presence of heavy metals like As, Cr, Cd, and Pd. Lead was found at 160 mg/L in PCBs leachate, which exceeded the toxicity characteristics (TC) limit of 5 mg/L. Liquid sample analysis from TCLP also showed the presence of C10-C19 components, including benzene. This study's results contribute to the development of practical recycling alternative approaches that could help reduce health risks and environmental problems and recover materials from e-waste. These results will also help assess the hazard risks that workers are exposed to semi-formal recycling centers.
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Affiliation(s)
- Endalkachew Sahle-Demessie
- US Environmental Protection Agency, Office of Research and Development, Center for Environmental Solutions and Emergency Response, Cincinnati, OH 45268, USA
| | - Bineyam Mezgebe
- US Environmental Protection Agency, Office of Research and Development, Center for Environmental Solutions and Emergency Response, Cincinnati, OH 45268, USA
- Oak Ridge Institute for Science and Education, Oak Ridge, TN 37831, USA
| | - Joshua Dietrich
- Department of Chemical Engineering, University of Cincinnati, Cincinnati, Ohio, USA
| | - Yonggui Shan
- US Environmental Protection Agency, Office of Research and Development, Center for Environmental Solutions and Emergency Response, Cincinnati, OH 45268, USA
| | - Stephen Harmon
- US Environmental Protection Agency, Office of Research and Development, Center for Environmental Solutions and Emergency Response, Cincinnati, OH 45268, USA
| | - Chun C. Lee
- US Environmental Protection Agency, Office of Research and Development, Center for Environmental Solutions and Emergency Response, Cincinnati, OH 45268, USA
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Xu J, White AJ, Niehoff NM, O'Brien KM, Sandler DP. Airborne metals exposure and risk of hypertension in the Sister Study. ENVIRONMENTAL RESEARCH 2020; 191:110144. [PMID: 32898563 PMCID: PMC7658027 DOI: 10.1016/j.envres.2020.110144] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 07/31/2020] [Accepted: 08/25/2020] [Indexed: 05/19/2023]
Abstract
BACKGROUND Hypertension-related disease burden is a major challenge globally, with an estimated 1.56 billion adults expected to be affected by hypertension by 2025. Environmental factors, such as metals, could be risk factors for hypertension, but the relationship between airborne metals and hypertension is rarely studied. METHODS Census-tract airborne metal concentrations (arsenic, cadmium, chromium, cobalt, lead, manganese, mercury, nickel, selenium, and antimony) from the U.S. Environmental Protection Agency 2005 National Air Toxics Assessment database were linked to enrollment residential addresses of 47,595 women in the Sister Study cohort. Hypertension was defined as high systolic (≥140 mm Hg) or diastolic (≥90 mm Hg) blood pressure measured by trained examiners at enrollment or taking anti-hypertensive medications. Multivariable log binomial regression was used to estimate adjusted prevalence ratios (PRs) and 95% confidence intervals (CIs) for the association between individual metals and hypertension, with and without co-adjustment for other metals. Quantile-based g-computation was used to estimate the joint effect of the overall metal mixture. RESULTS Comparing the highest to lowest quartiles, risk of hypertension was higher among women with higher residential exposure to arsenic (PR = 1.05, 95%CI = 1.02,1.09), lead (PR = 1.04, 95%CI = 1.01,1.08), chromium (PR = 1.03, 95%CI = 1.00,1.06), cobalt (PR = 1.03, 95%CI = 1.00,1.07), and manganese (PR = 1.03, 95%CI = 1.00,1.06). Selenium was associated with lower risk of hypertension (PR = 0.96, 95%CI = 0.93,0.99). Results were similar with mutual adjustment for all other metals. The associations varied by race/ethnicity, with greater PRs in other races/ethnicities (Hispanic, black, and other participants) compared to non-Hispanic white participants. The joint effect of a quartile increase in exposure to all the metals was 1.02 (95%CI = 0.99,1.04). CONCLUSION We found that living in areas of higher exposure to arsenic, lead, chromium, cobalt, and manganese was related to higher risk of hypertension, whereas living in areas with higher selenium was inversely related to the risk of hypertension.
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Affiliation(s)
- Jing Xu
- Epidemiology Branch, National Institute of Environmental Health Sciences, National Institute of Health, Research Triangle Park, NC, USA; Department of Epidemiology and Biostatistics, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing, China
| | - Alexandra J White
- Epidemiology Branch, National Institute of Environmental Health Sciences, National Institute of Health, Research Triangle Park, NC, USA
| | - Nicole M Niehoff
- Epidemiology Branch, National Institute of Environmental Health Sciences, National Institute of Health, Research Triangle Park, NC, USA
| | - Katie M O'Brien
- Epidemiology Branch, National Institute of Environmental Health Sciences, National Institute of Health, Research Triangle Park, NC, USA
| | - Dale P Sandler
- Epidemiology Branch, National Institute of Environmental Health Sciences, National Institute of Health, Research Triangle Park, NC, USA.
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Li W, Achal V. Environmental and health impacts due to e-waste disposal in China - A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 737:139745. [PMID: 32516663 DOI: 10.1016/j.scitotenv.2020.139745] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 05/02/2020] [Accepted: 05/25/2020] [Indexed: 06/11/2023]
Abstract
E-waste is discarded and shipped mostly to developing countries located in Asian continent for disposal from other developed countries. Especially 70% of the world's e-waste ends up in Guiyu, a small town located in Guangdong Province of China. As little as 25% is recycled in formal recycling centers with adequate protection for workers and the other e-waste arrived in those areas is not handled in organized manner. As per reports only roughly 12.5% of e-waste is actually recycled, and the recycling efforts in those regions are primitive and result in toxic substances being leached into the surrounding ecosystems. In addition to persistent organic pollutants, there are many heavy metals found in the ground and river sediments in Guiyu, exceeding the threshold set to protect human health. Those areas are no longer suitable for growing food, and water is unsafe for drinking, due to the amount of toxins leached into the groundwater and land. Hazardous threats to environment and human health due to hazardous substances of e-waste all around China, as well as the current e-waste management were documented in this review. The article concludes with controlled contamination sources, and eco-friendly and efficient remediation technologies to solve e-waste problem in China.
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Affiliation(s)
- Weila Li
- Environmental Engineering Program, Guangdong Technion - Israel Institute of Technology, Shantou 515063, China; Technion - Israel Institute of Technology, Haifa 32000, Israel
| | - Varenyam Achal
- Environmental Engineering Program, Guangdong Technion - Israel Institute of Technology, Shantou 515063, China; Technion - Israel Institute of Technology, Haifa 32000, Israel.
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Zeng X, Huo X, Xu X, Liu D, Wu W. E-waste lead exposure and children's health in China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 734:139286. [PMID: 32460072 DOI: 10.1016/j.scitotenv.2020.139286] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Revised: 04/20/2020] [Accepted: 05/06/2020] [Indexed: 02/05/2023]
Abstract
China is one of the countries worldwide confronted with serious e-waste pollution and associated detrimental health effects, which has aroused public, academic and governmental concerns. Most local residents are exposed to hazardous substances such as lead (Pb) and other persistent organic pollutants because of informal e-waste recycling activities. This study reviews recent studies on children exposed to e-waste Pb in China focusing on health-related effects in children (e.g. growth and development, cardiovascular, immune, nervous, respiratory, reproductive, skeletal, and urinary systems) and evaluating the evidence for the association between e-waste Pb exposure and the children health outcomes in China. Children are one of most sensitive and vulnerable groups when facing e-waste Pb exposure. Previous data indicate that exposure to e-waste Pb has adverse effect on human health such as delayed and damaged physical and nervous development. It is the time to take effective measures, such as upgrading e-waste recycling technology, enhancing government policy guidance and support, and strengthening environmental protection and health awareness of the local inhabitants, to prevent the adverse effects of e-waste.
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Affiliation(s)
- Xiang Zeng
- School of Public Health, Xinxiang Medical University, 601 Jinsui Road, Xinxiang 453003, Henan, China; Laboratory of Environmental Medicine and Developmental Toxicology, Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 510632, Guangdong, China; Laboratory of Environmental Medicine and Developmental Toxicology, Shantou University Medical College, 22 Xinling Road, Shantou 515041, Guangdong, China.
| | - Xia Huo
- Laboratory of Environmental Medicine and Developmental Toxicology, Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 510632, Guangdong, China
| | - Xijin Xu
- Laboratory of Environmental Medicine and Developmental Toxicology, Shantou University Medical College, 22 Xinling Road, Shantou 515041, Guangdong, China
| | - Dongling Liu
- Henan Key Laboratory of Medical Tissue Regeneration, Xinxiang Medical University, 601 Jinsui Road, Xinxiang 453003, China
| | - Weidong Wu
- School of Public Health, Xinxiang Medical University, 601 Jinsui Road, Xinxiang 453003, Henan, China
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Kwarteng L, Baiden EA, Fobil J, Arko‐Mensah J, Robins T, Batterman S. Air Quality Impacts at an E-Waste Site in Ghana Using Flexible, Moderate-Cost and Quality-Assured Measurements. GEOHEALTH 2020; 4:e2020GH000247. [PMID: 32832821 PMCID: PMC7431652 DOI: 10.1029/2020gh000247] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 06/19/2020] [Accepted: 06/23/2020] [Indexed: 05/08/2023]
Abstract
Air quality information is scarce in low- and middle-income countries. This study describes the application of moderate cost approaches that can provide spatial and temporal information on concentrations of particulate matter (PM) needed to assess community and occupational exposures. We evaluated PM levels at the Agbogbloshie e-waste and scrap yard site in Accra, Ghana, and at upwind and downwind locations, obtaining both optical and gravimetric measurements, local meteorological data and satellite aerosol optical depth. Due to overload issues, the gravimetric 24-hr samplers were modified for periodic sampling and some optical data were screened for quality assurance. Exceptionally high concentrations (e.g., 1-hr average PM10 exceeding 2000 μg/m3) were sometimes encountered near combustion sources, including open fires at the e-waste site and spoil piles. 24-hr PM2.5 levels averaged 31, 88 and 57 μg/m3 at upwind, e-waste and downwind sites, respectively, and PM10 averaged 145, 214 and 190 μg/m3, considerably exceeding air quality standards. Upwind levels likely reflected biomass burning that is prevalent in the surrounding informal settlements; levels at the e-waste and downwind sites also reflected contributions from biomass combustion and traffic. The highest PM levels occurred in evenings, influenced by diurnal changes in emission rates, atmospheric dispersion and wind direction shifts. We demonstrate that moderate cost instrumentation, with some modifications, appropriate data cleaning protocols, and attention to understanding local sources and background levels, can be used to characterize spatial and temporal variation in PM levels in urban and industrial areas.
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Affiliation(s)
- Lawrencia Kwarteng
- Department of Biological, Environmental and Occupational Health SciencesUniversity of GhanaAccraGhana
| | - Emmanuel Acquah Baiden
- Department of Biological, Environmental and Occupational Health SciencesUniversity of GhanaAccraGhana
| | - Julius Fobil
- Department of Biological, Environmental and Occupational Health SciencesUniversity of GhanaAccraGhana
| | - John Arko‐Mensah
- Department of Biological, Environmental and Occupational Health SciencesUniversity of GhanaAccraGhana
| | - Thomas Robins
- Environmental Health SciencesUniversity of MichiganAnn ArborMichiganUSA
| | - Stuart Batterman
- Environmental Health SciencesUniversity of MichiganAnn ArborMichiganUSA
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Takyi SA, Basu N, Arko-Mensah J, Botwe P, Amoabeng Nti AA, Kwarteng L, Acquah A, Tettey P, Dwomoh D, Batterman S, Robins T, Fobil JN. Micronutrient-rich dietary intake is associated with a reduction in the effects of particulate matter on blood pressure among electronic waste recyclers at Agbogbloshie, Ghana. BMC Public Health 2020; 20:1067. [PMID: 32631289 PMCID: PMC7339459 DOI: 10.1186/s12889-020-09173-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 06/26/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Informal recycling of electronic waste (e-waste) releases particulate matter (PM) into the ambient air. Human exposure to PM has been reported to induce adverse effects on cardiovascular health. However, the impact of PM on the cardiovascular health of e-waste recyclers in Ghana has not been studied. Although intake of micronutrient-rich diet is known to modify these PM-induced adverse health effects, no data are available on the relationship between micronutrient status of e-waste recyclers and the reported high-level exposure to PM. We therefore investigated whether the intake of micronutrient-rich diets ameliorates the adverse effects of ambient exposure to PM2.5 on blood pressure (BP). METHODS This study was conducted among e-waste and non-e-waste recyclers from March 2017 to October 2018. Dietary micronutrient (Fe, Ca, Mg, Se, Zn, and Cu) intake was assessed using a 2-day 24-h recall. Breathing zone PM2.5 was measured with a real-time monitor. Cardiovascular indices such as systolic BP (SBP), diastolic BP (DBP), and pulse pressure (PP) were measured using a sphygmomanometer. Ordinary least-squares regression models were used to estimate the joint effects of ambient exposure to PM2.5 and dietary micronutrient intake on cardiovascular health outcomes. RESULTS Fe was consumed in adequate quantities, while Ca, Se, Zn, Mg, and Cu were inadequately consumed among e-waste and non-e-waste recyclers. Dietary Ca, and Fe intake was associated with reduced SBP and PP of e-waste recyclers. Although PM2.5 levels were higher in e-waste recyclers, exposures in the control group also exceeded the WHO 24-h guideline value (25 μg/m3). Exposure to 1 μg/m3 of PM2.5 was associated with an increased heart rate (HR) among e-waste recyclers. Dietary Fe intake was associated with a reduction in systolic blood pressure levels of e-waste recyclers after PM exposure. CONCLUSIONS Consistent adequate dietary Fe intake was associated with reduced effects of PM2.5 on SBP of e-waste recyclers overtime. Nonetheless, given that all other micronutrients are necessary in ameliorating the adverse effects of PM on cardiovascular health, nutrition-related policy dialogues are required. Such initiatives would help educate informal e-waste recyclers and the general population on specific nutrients of concern and their impact on the exposure to ambient air pollutants.
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Affiliation(s)
- Sylvia A Takyi
- Department of Biological, Environmental & Occupational Health Sciences, School of Public Health, University of Ghana, P. O. Box LG13, Legon, Accra, Ghana.
| | - Niladri Basu
- Faculty of Agricultural and Environmental Sciences, McGill University, Montreal, Canada
| | - John Arko-Mensah
- Department of Biological, Environmental & Occupational Health Sciences, School of Public Health, University of Ghana, P. O. Box LG13, Legon, Accra, Ghana
| | - Paul Botwe
- Department of Biological, Environmental & Occupational Health Sciences, School of Public Health, University of Ghana, P. O. Box LG13, Legon, Accra, Ghana
| | - Afua Asabea Amoabeng Nti
- Department of Biological, Environmental & Occupational Health Sciences, School of Public Health, University of Ghana, P. O. Box LG13, Legon, Accra, Ghana
| | - Lawrencia Kwarteng
- Department of Biological, Environmental & Occupational Health Sciences, School of Public Health, University of Ghana, P. O. Box LG13, Legon, Accra, Ghana
| | - Augustine Acquah
- Department of Biological, Environmental & Occupational Health Sciences, School of Public Health, University of Ghana, P. O. Box LG13, Legon, Accra, Ghana
| | - Prudence Tettey
- Department of Biological, Environmental & Occupational Health Sciences, School of Public Health, University of Ghana, P. O. Box LG13, Legon, Accra, Ghana
| | - Duah Dwomoh
- Department of Biostatistics, School of Public Health, University of Ghana, Accra, Ghana
| | - Stuart Batterman
- Environmental Health Sciences, School of Public Health, University of Michigan, Ann Arbor, MI, USA
| | - Thomas Robins
- Environmental Health Sciences, School of Public Health, University of Michigan, Ann Arbor, MI, USA
| | - Julius N Fobil
- Department of Biological, Environmental & Occupational Health Sciences, School of Public Health, University of Ghana, P. O. Box LG13, Legon, Accra, Ghana
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