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Zanetta‐Colombo NC, Manzano CA, Brombierstäudl D, Fleming ZL, Gayo EM, Rubinos DA, Jerez Ó, Valdés J, Prieto M, Nüsser M. Blowin' in the Wind: Mapping the Dispersion of Metal(loid)s From Atacama Mining. GEOHEALTH 2024; 8:e2024GH001078. [PMID: 39355274 PMCID: PMC11443516 DOI: 10.1029/2024gh001078] [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: 04/17/2024] [Revised: 08/21/2024] [Accepted: 08/29/2024] [Indexed: 10/03/2024]
Abstract
The Atacama Desert's naturally elevated metal(loid)s pose a unique challenge for assessing the environmental impact of mining, particularly for indigenous communities residing in these areas. This study investigates how copper mining influences the dispersion of these elements in the wind-transportable fraction (<75 μm) of surface sediments across an 80 km radius. We employed a multi-pronged approach, utilizing spatial modeling to map element distributions, exponential decay analysis to quantify concentration decline with distance, regime shift modeling to identify dispersion pattern variations, and pollution assessment to evaluate impact. Our results reveal significant mining-driven increases in surface concentrations of copper (Cu), molybdenum (Mo), and arsenic (As). Notably, within the first 20 km, concentrations peaked at 1,016 mg kg⁻1 for Cu, 31 mg kg⁻1 for Mo, and a remarkable 165 mg kg⁻1 for As. Cu and Mo displayed significant dispersion, extending up to 50 km from the source. However, As exhibited the most extensive reach, traveling up to 70 km downwind, highlighting the far-reaching ecological footprint of mining operations. Mineralogical analyses corroborated these findings, identifying mining-related minerals in surface sediments far beyond the immediate mining area. Although pollution indices based on the proposed Local Geochemical Background reveal significant contamination across the study area, establishing accurate pre-industrial baseline values is essential for a more reliable assessment. This study challenges the concept of "natural pollution" by demonstrating that human activities exacerbate baseline metal(loid)s levels. Expanding monitoring protocols is imperative to comprehensively assess the combined effects of multiple emission sources, including mining and natural processes, in safeguarding environmental and human health for future generations.
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Affiliation(s)
- Nicolás C. Zanetta‐Colombo
- Department of GeographySouth Asia InstituteHeidelberg UniversityHeidelbergGermany
- Heidelberg Center for the Environment (HCE)Heidelberg UniversityHeidelbergGermany
| | - Carlos A. Manzano
- Departamento de QuímicaFacultad de CienciasUniversidad de ChileSantiagoChile
- School of Public HealthSan Diego State UniversitySan DiegoCAUSA
| | | | - Zoë L. Fleming
- Centro de Investigación en Tecnologías para la SociedadUniversidad Del DesarrolloSantiagoChile
- Center for Climate and Resilience Research (CR)2SantiagoChile
| | - Eugenia M. Gayo
- Center for Climate and Resilience Research (CR)2SantiagoChile
- Departamento de GeografíaUniversidad de ChileSantiagoChile
| | - David A. Rubinos
- Sustainable Minerals Institute–International Centre of Excellence Chile (SMI‐ICE‐Chile), The University of Queensland, AustraliaLas CondesSantiagoChile
| | - Óscar Jerez
- Instituto de Geología Económica Aplicada (GEA)University of ConcepciónConcepciónChile
| | - Jorge Valdés
- Laboratorio de Sedimentología y Paleoambientes (LASPAL)Facultad de Ciencias del Mar y de Recursos BiológicosInstituto de Ciencias Naturales Alexander von HumboldtUniversidad de AntofagastaAntofagastaChile
| | - Manuel Prieto
- Millenium Nucleus in Andean Peatlands (AndesPeat)AricaChile
- Departamento de Ciencias Históricas y GeográficasUniversidad de TarapacáAricaChile
| | - Marcus Nüsser
- Department of GeographySouth Asia InstituteHeidelberg UniversityHeidelbergGermany
- Heidelberg Center for the Environment (HCE)Heidelberg UniversityHeidelbergGermany
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Chen D, Li X, Wang Z, Kang C, He T, Liu H, Jiang Z, Xi J, Zhang Y. Systematic assessment of source identification and ecological and probabilistic health risks of potentially toxic elements (PTEs) in soils of a typical coal mining area in Guanzhong region. Heliyon 2024; 10:e36301. [PMID: 39263165 PMCID: PMC11387233 DOI: 10.1016/j.heliyon.2024.e36301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2024] [Revised: 08/05/2024] [Accepted: 08/13/2024] [Indexed: 09/13/2024] Open
Abstract
Mining activities may cause the accumulation of potentially toxic elements (PTEs) in surrounding soils, posing ecological threats and health dangers to the local population. Therefore, a comprehensive assessment using multiple indicators was used to quantify the level of risk in the region. The results showed that the mean values of the nine potentially toxic elements in the study area were lower than the background values only for Cr, and the lowest coefficient of variation was 17.1 % for As, and the spatial distribution characteristics of the elements indicate that they are enriched by different factors. The elements Hg and Cd, which have substantial cumulative features, are the key contributors to ecological risk in the study region, which is overall at moderate risk. APCS-MLR model parses out 4 possible sources: mixed industrial, mining and transportation sources (53.98 %), natural sources (24.56 %), atmospheric deposition sources (12.60 %), and agricultural production sources (8.76 %). The probabilistic health risks show that children are more susceptible to health risks than adults; among children, the safety criteria (HI < 1 and CR < 10-4) were surpassed by 29.29 % of THI and 8.58 % of TCR. According to source-orientated health hazards, the element Ni significantly increases the risk of cancer. Mixed sources from industry, mining, and transportation are important sources of health risks. The results of this research provide some scientific references for the management and decrease of regional ecological and health risks.
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Affiliation(s)
- Daokun Chen
- Xi'an Center of Mineral Resources Survey, China Geological Survery, Xi'an, 710100, China
- School of Earth and Environment, Anhui University of Science & Technology, Huainan, 232001, China
| | - Xinbin Li
- Xi'an Center of Mineral Resources Survey, China Geological Survery, Xi'an, 710100, China
- Qinling--Loess Plateau Transition Zone Observation and Research Station for Coupling of Soil and Water Elements and Conservation of Biological Resources, China
| | - Zhanbin Wang
- Xi'an Center of Mineral Resources Survey, China Geological Survery, Xi'an, 710100, China
| | - Chengxin Kang
- Xi'an Center of Mineral Resources Survey, China Geological Survery, Xi'an, 710100, China
| | - Tao He
- Research Center of Applied Geology of China Geological Survey, Chengdu, 610036, China
| | - Hanyuan Liu
- Xi'an Center of Mineral Resources Survey, China Geological Survery, Xi'an, 710100, China
| | - Zhiyang Jiang
- School of Earth and Environment, Anhui University of Science & Technology, Huainan, 232001, China
| | - Junsheng Xi
- Xi'an Center of Mineral Resources Survey, China Geological Survery, Xi'an, 710100, China
| | - Yao Zhang
- Xi'an Center of Mineral Resources Survey, China Geological Survery, Xi'an, 710100, China
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3
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Moyebi OD, Lebbie T, Carpenter DO. Standards for levels of lead in soil and dust around the world. REVIEWS ON ENVIRONMENTAL HEALTH 2024; 0:reveh-2024-0030. [PMID: 38856075 DOI: 10.1515/reveh-2024-0030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Accepted: 04/15/2024] [Indexed: 06/11/2024]
Abstract
Lead poisoning is a serious environmental health problem in every country in the world. Exposure to lead results in neurocognitive and behavioral changes, has adverse effects on the immune system, causes anemia, hypertension and perturbs other organ systems. The effects of lead poisoning are most critical for children because their bodies are growing and developing, and particularly because agents that reduce cognitive function and attention span as well as promote disruptive behavior will have life-long consequences. Lead exposure, especially to children, is a major health disparity issue. If the next generation starts with reduced cognitive ability, there will be significant barriers for development of skills and country-wide development. While there are many sources of exposure to lead, the commonest source is lead in soil and dust. Since lead is an element, it does not go away and past releases of lead into the environment remain as soil and dust contamination. This is an especially important route of exposure to children because children regularly play in soil and are exposed via hand-to-mouth activity. In addition to indoor sources of lead, contaminated soil is tracked on shoes or feet and blown by air currents into homes, accumulating in household dust which is a major source of exposure for both children and adults. The purpose of this review is to determine standards presumed to be health protective for lead and dust in different countries. We find that many countries have no standards for lead in soil and dust and rely on standards set by the World Health Organization or the US Environmental Protection Agency, and these standards may or may not be enforced. There is considerable variation in standards set by other countries.
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Affiliation(s)
- Omosehin D Moyebi
- Department of Environmental Health Sciences, School of Public Health, 1084 University at Albany , Rensselaer, NY, USA
- Nursing Program, School of Science, Navajo Technical University, Crownpoint, NM, USA
| | - Tamba Lebbie
- Department of Environmental Health Sciences, School of Public Health, 1084 University at Albany , Rensselaer, NY, USA
| | - David O Carpenter
- Department of Environmental Health Sciences, School of Public Health, 1084 University at Albany , Rensselaer, NY, USA
- A World Health Organization Collaborating Center on Environmental Health, 1084 Institute for Health and the Environment, University at Albany , Rensselaer, NY, USA
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Li X, He A, Cao Y, Yun J, Bao H, Yan X, Zhang X, Dong J, Kelly FJ, Mudway I. Exposure risks of lead and other metals to humans: A consideration of specific size fraction and methodology. JOURNAL OF HAZARDOUS MATERIALS 2024; 469:133549. [PMID: 38447362 DOI: 10.1016/j.jhazmat.2024.133549] [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: 10/07/2023] [Revised: 01/10/2024] [Accepted: 01/16/2024] [Indexed: 03/08/2024]
Abstract
Particle size is a critical influencing factor in assessing human exposure risk as fine particles are generally more hazardous than larger coarse particles. However, how particle composition influences human health risk is only poorly understood as different studies have different utilised different definitions and as a consequence there is no consensus. Here, with a new methodology taking insights of each size fraction load (%GSFload), metal bioaccessibility, we classify which specific particle size can reliably estimate the human exposure risk of lead and other metals. We then validate these by correlating the metals in each size fraction with those in human blood, hair, crop grain and different anthropogenic sources. Although increasing health risks are linked to metal concentration these increase as particle size decrease, the adjusted-risk for each size fraction differs when %GSFload is introduced to the risk assessment program. When using a single size fraction (250-50 µm, 50-5 µm, 5-1 µm, and < 1 µm) for comparison, the risk may be either over- or under-estimated. However, by considering bulk and adjusting the risk, it would be possible to obtain results that are closer to the real scenarios, which have been validated through human responses and evidence from crops. Fine particle size fractions (< 5 µm) bearing the mineral crystalline or aggregates (CaCO3, Fe3O4, Fe2O3, CaHPO4, Pb5(PO4)3Cl) alter the accumulation, chemical speciation, and fate of metals in soil/dust/sediment from the different sources. Loaded lead in the size fraction of < 50 µm has a significantly higher positive association with the risk-receptor biomarkers (BLLs, Hair Pb, Corn Pb, and Crop Pb) than other size fractions (bulk and 50-250 µm). Thus, we conclude that the < 50 µm fraction would be likely to be recommended as a reliable fraction to include in a risk assessment program. This methodology acts as a valuable instrument for future research undertakings, highlighting the importance of choosing suitable size fractions and attaining improved accuracy in risk assessment results that can be effectively compared.
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Affiliation(s)
- Xiaoping Li
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi'an, Shaanxi 710062, PR China; International Joint Research Centre of Shaanxi Province for Pollutant Exposure and Eco-environmental Health, Xi'an, Shaanxi 710062, PR China; MRC Centre for Environment and Health, Environmental Research Group, School of Public Health, Imperial College London, 80 Wood Lane, London W12 0BZ, UK.
| | - Ana He
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi'an, Shaanxi 710062, PR China; International Joint Research Centre of Shaanxi Province for Pollutant Exposure and Eco-environmental Health, Xi'an, Shaanxi 710062, PR China
| | - Yuhan Cao
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi'an, Shaanxi 710062, PR China; International Joint Research Centre of Shaanxi Province for Pollutant Exposure and Eco-environmental Health, Xi'an, Shaanxi 710062, PR China
| | - Jiang Yun
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi'an, Shaanxi 710062, PR China; International Joint Research Centre of Shaanxi Province for Pollutant Exposure and Eco-environmental Health, Xi'an, Shaanxi 710062, PR China
| | - Hongxiang Bao
- Frontier Medical Service Training Brigade, Army Medical University, Hutubi 831200, PR China
| | - Xiangyang Yan
- International Joint Research Centre of Shaanxi Province for Pollutant Exposure and Eco-environmental Health, Xi'an, Shaanxi 710062, PR China; School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an, Shaanxi 710062, PR China
| | - Xu Zhang
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi'an, Shaanxi 710062, PR China; International Joint Research Centre of Shaanxi Province for Pollutant Exposure and Eco-environmental Health, Xi'an, Shaanxi 710062, PR China
| | - Jie Dong
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi'an, Shaanxi 710062, PR China; International Joint Research Centre of Shaanxi Province for Pollutant Exposure and Eco-environmental Health, Xi'an, Shaanxi 710062, PR China
| | - Frank J Kelly
- MRC Centre for Environment and Health, Environmental Research Group, School of Public Health, Imperial College London, 80 Wood Lane, London W12 0BZ, UK; NIHR Health Protection Research Units in Environmental Exposures and Health, and Chemical and Radiation Threats and Hazards, Imperial College London, London, UK
| | - Ian Mudway
- MRC Centre for Environment and Health, Environmental Research Group, School of Public Health, Imperial College London, 80 Wood Lane, London W12 0BZ, UK; NIHR Health Protection Research Units in Environmental Exposures and Health, and Chemical and Radiation Threats and Hazards, Imperial College London, London, UK
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Dong J, Li X, Kelly FJ, Mudway I. Lead exposure in Chinese children: Urbanization lowers children's blood lead levels (BLLs). THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 923:170910. [PMID: 38354817 DOI: 10.1016/j.scitotenv.2024.170910] [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: 10/26/2023] [Revised: 02/07/2024] [Accepted: 02/09/2024] [Indexed: 02/16/2024]
Abstract
Lead is a toxic metal that can pose a huge threat to children's health. China has experienced rapid urbanization since the reform in 1978; however, there has been no examination of the potential influence of this urbanization on children's blood lead levels (BLLs). This study is the initial investigation to explore the correlation between urbanization and BLLs in Chinese children. Five windows of time are considered: pre-2000, 2001-2005, 2006-2010, 2011-2015 and 2016-2021. The results show that urbanization affected lead distribution in urban soil and agricultural soil during the above periods, especially in northern China. The higher non-carcinogenic risk of lead for children is consistent with the lead pollution in soil (3 < Igeo ≤ 4). Urban children's BLLs are slightly higher than those of rural children in 2001-2010, but rural children's BLLs in 2011-2021 are higher than those of urban children during China's urbanization. The areas of rural decline and the areas of urban growth increased across all the window periods. However, the BLLs decrease in all rural and urban areas during all window periods, especially in urban areas. Children's BLLs have a significantly negative correlation with urban areas (p < 0.01). Therefore, China's urbanization has a significant effect on the decrease in children's BLLs. The significance of this study is to provide a fresh perspective and innovative strategy for policymaking in order to reduce children's BLLs and prevent lead exposure. This can be achieved by transforming their external living environment from a rural lifestyle to an urban one, while also ensuring access to well education and maintaining a balanced nutrient intake.
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Affiliation(s)
- Jie Dong
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi'an, Shaanxi 710062, PR China; International Joint Research Centre of Shaanxi Province for Pollutant Exposure and Eco-environmental Health, Xi'an, Shaanxi 710062, PR China
| | - Xiaoping Li
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi'an, Shaanxi 710062, PR China; International Joint Research Centre of Shaanxi Province for Pollutant Exposure and Eco-environmental Health, Xi'an, Shaanxi 710062, PR China; MRC Centre for Environment and Health, Environmental Research Group, School of Public Health, Imperial College London, 80 Wood Lane, London W12 0BZ, UK.
| | - Frank J Kelly
- MRC Centre for Environment and Health, Environmental Research Group, School of Public Health, Imperial College London, 80 Wood Lane, London W12 0BZ, UK; NIHR Health Protection Research Units in Environmental Exposures and Health, and Chemical and Radiation Threats and Hazards, Imperial College London, London, UK
| | - Ian Mudway
- MRC Centre for Environment and Health, Environmental Research Group, School of Public Health, Imperial College London, 80 Wood Lane, London W12 0BZ, UK; NIHR Health Protection Research Units in Environmental Exposures and Health, and Chemical and Radiation Threats and Hazards, Imperial College London, London, UK
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6
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Yu J, Liu X, Yang B, Li X, Wang P, Yuan B, Wang M, Liang T, Shi P, Li R, Cheng H, Li F. Major influencing factors identification and probabilistic health risk assessment of soil potentially toxic elements pollution in coal and metal mines across China: A systematic review. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 274:116231. [PMID: 38503102 DOI: 10.1016/j.ecoenv.2024.116231] [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: 11/16/2023] [Revised: 02/08/2024] [Accepted: 03/14/2024] [Indexed: 03/21/2024]
Abstract
Deposition of potentially toxic elements (PTEs) in soils due to different types of mining activities has been an increasingly important concern worldwide. Quantitative differences of soil PTEs contamination and related health risk among typical mines remain unclear. Herein, data from 110 coal mines and 168 metal mines across China were analyzed based on 265 published literatures to evaluate pollution characteristics, spatial distribution, and probabilistic health risks of soil PTEs. The results showed that PTE levels in soil from both mine types significantly exceeded background values. The geoaccumulation index (Igeo) revealed metal-mine soil pollution levels exceeded those of coal mines, with average Igeo values for Cd, Hg, As, Pb, Cu, and Zn being 3.02-15.60 times higher. Spearman correlation and redundancy analysis identified natural and anthropogenic factors affecting soil PTE contamination in both mine types. Mining activities posed a significant carcinogenic risk, with metal-mine soils showing a total carcinogenic risk an order of magnitude higher than in coal-mine soils. This study provides policymakers a quantitative foundation for developing differentiated strategies for sustainable remediation and risk-based management of PTEs in typical mining soils.
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Affiliation(s)
- Jingjing Yu
- College of Water Sciences, Beijing Normal University, Beijing 100875, China; State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Xiaoyang Liu
- Technical Centre for Soil, Agriculture and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing 100012, China.
| | - Bin Yang
- Technical Centre for Soil, Agriculture and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing 100012, China
| | - Xiaodong Li
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Panpan Wang
- College of Water Sciences, Beijing Normal University, Beijing 100875, China; State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Bei Yuan
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; Technical Centre for Soil, Agriculture and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing 100012, China
| | - Minghao Wang
- China Metallurgical Industry Planning and Research Institute, Beijing 100013, China
| | - Tian Liang
- College of Water Sciences, Beijing Normal University, Beijing 100875, China; State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Pengfei Shi
- College of Water Sciences, Beijing Normal University, Beijing 100875, China; State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Renyou Li
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; School of Ecology and Environment, Inner Mongolia University, Inner Mongolia, 010020, China
| | - Hongguang Cheng
- College of Water Sciences, Beijing Normal University, Beijing 100875, China
| | - Fasheng Li
- College of Water Sciences, Beijing Normal University, Beijing 100875, China; State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
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Kyene MO, Gbeddy G, Mensah T, Acheampong C, Kumi-Amoah G, Ketemepi HK, Brimah AK, Akyea-Larbi K, Darko DA. Bioaccessibility and children health risk assessment of soil-laden heavy metals from school playground and public parks in Accra, Ghana. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:1199. [PMID: 37698664 DOI: 10.1007/s10661-023-11818-1] [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: 06/14/2023] [Accepted: 09/01/2023] [Indexed: 09/13/2023]
Abstract
Parks and playground soils constitute a critical matrix for children exposure to hazardous substances due to their high exposure rate. However, minimal investigation has been conducted in Ghana on the subject, thus the need for this research. One hundred and twenty (120) soil samples were collected between April 2015 and March 2016 and then analyzed for heavy metals using atomic absorption spectroscopy. The health risk posed to school children by the heavy metals laden in soil was assessed via oral bioaccessibility and hazard index. The oral bioaccessibility of the metals was estimated using the simple bioaccessibility extraction test (SBET) method. Iron (Fe) measured the highest range of total metal concentrations of 2785.0-15275.0 mg kg-1 followed by Pb of 2.1-284.0 mg kg-1. The oral bioaccessibility of the metals varied significantly with Pb and Cu exhibiting the highest mean values of 47.80% and 54.45%, respectively. The sequence for the mean bioaccessibility result does not correspond with the mean concentration of metals in the soil. The hazard index (HI) for most of the heavy metals indicated no potential non-carcinogenic health risk to children (HI < 1) except for Pb. The prolonged use of leaded fuel in Ghana prior to its outright ban on January 1 2004 and the persistence of Pb in soil media may account for its high risk. The deleterious health effects of Pb on children call for the adoption and implementation of appropriate environmental management of playgrounds so as to mitigate children's exposure to soil-laden heavy metals.
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Affiliation(s)
- Michael O Kyene
- Department of Pharmaceutics and Quality Control, Centre for Plant Medicine Research Mampong - Akuapem, Koforidua, Ghana
- School of Physical and Mathematical Sciences, Department of Chemistry, University of Ghana, Legon, Accra, Ghana
| | - Gustav Gbeddy
- Radiation Protection Institute, Ghana Atomic Energy Commission, Kwabenya, Accra, Ghana.
| | - Theophilus Mensah
- Department of Science, SDA University College of Education, Asokore-Koforidua, Ghana
| | - Charles Acheampong
- School of Physical and Mathematical Sciences, Department of Chemistry, University of Ghana, Legon, Accra, Ghana
| | - Gifty Kumi-Amoah
- School of Physical and Mathematical Sciences, Department of Chemistry, University of Ghana, Legon, Accra, Ghana
- Dept. of Environment and Public Health, University of Environment and Sustainable Development, Somanya, Ghana
| | - Hilary Kwesi Ketemepi
- School of Physical and Mathematical Sciences, Department of Chemistry, University of Ghana, Legon, Accra, Ghana
- Food Research Institute, Council for Scientific and Industrial Research, Accra, Ghana
| | - Abdul K Brimah
- School of Physical and Mathematical Sciences, Department of Chemistry, University of Ghana, Legon, Accra, Ghana
| | - Kofi Akyea-Larbi
- Radiation Protection Institute, Ghana Atomic Energy Commission, Kwabenya, Accra, Ghana
| | - Daniel Amoako Darko
- Institute for Environment and Sanitation Studies, College of Basic and Applied Sciences, University of Ghana, Legon, Accra, Ghana
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Dong J, Li X. Lead pollution-related health of children in China: Disparity, challenge, and policy. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 882:163383. [PMID: 37068684 DOI: 10.1016/j.scitotenv.2023.163383] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 03/22/2023] [Accepted: 04/04/2023] [Indexed: 06/01/2023]
Abstract
Lead (Pb) is a neurotoxic metal, and no level of lead exposure is safe for children. China has still experienced problems on child lead poisoning even though the Chinese government has phased out leaded gasoline since 2000. The underlying problem affecting the lead pollution-related health of children in China remains to be comprehensively investigated. It is found that although the significant decline of BLLs, as the Geometric Mean (GM), from 91.40 μg/LGM in 2001 to 37.52 μg/LGM in 2018 is observed, the average BLLs of children are still above 50 μg/L or more [average 59.70 (60.50-65.02, 95 % CI) μg/LGM] after phasing out leaded gasoline since 2000 in China. Lead exposure causes 29.67 MID per 1000 children with a loss of 98.23 (59.40-146.21, 95 % CI) DALYs per 1000 in China, which is greater than the levels reported from the Western Pacific Region and other low- and middle-income countries. A significant correlation is observed between the number of child crimes (NoCCs) and the outcomes of long-term lead exposure for children in China. Although the disparities in BLLs in China are strongly influenced by unequal distributions of potential multi-lead related sources (soil lead, PM2.5 lead, dust lead), unbalance development of local industrialization and economies, as well as incorrect health care for younger children, the notable emissions from coal combustion (CC) and non-ferrous metals (NMS) exploitation dominate the crucial sources of low-level lead exposure to children after phasing out leaded gasoline in China currently. Faced with the unequal and disparate distribution of BLLs in China, the big bottleneck is to decrease the BLLs exertions of 36-45 μg/L in the next few decades. The Chinese government needs to make more efforts on developing more strict guidelines, implementing more policy strategies on prevention and management of blood Pb poisoning, and monitoring the nationwide changes in children's BLLs continuously.
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Affiliation(s)
- Jie Dong
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi'an, Shaanxi 710062, PR China; International Joint Research Centre of Shaanxi Province for Pollutant Exposure and Eco-environmental Health, Xi'an, Shaanxi 710062, PR China
| | - Xiaoping Li
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi'an, Shaanxi 710062, PR China; International Joint Research Centre of Shaanxi Province for Pollutant Exposure and Eco-environmental Health, Xi'an, Shaanxi 710062, PR China; Environmental Research Group, School of Public Health, Imperial College London, 80 Wood Lane, London W12 0BZ, UK.
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Shentu J, Fang Y, Wang Y, Cui Y, Zhu M. Bioaccessibility and reliable human health risk assessment of heavy metals in typical abandoned industrial sites of southeastern China. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 256:114870. [PMID: 37037108 DOI: 10.1016/j.ecoenv.2023.114870] [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: 01/20/2023] [Revised: 03/31/2023] [Accepted: 04/03/2023] [Indexed: 06/19/2023]
Abstract
Heavy metal pollution caused by a large number of abandoned industrial sites cannot be underestimated, but its human health risks have not been accurately assessed. This study investigated the pollution of heavy metals in soils of the typical abandoned industrial sites in southeastern China. Based on the bioaccessibility of different heavy metals (Pb, Ni, Cu, Zn, Cd, Cr) in the industrial soils, the human health risks were accurately evaluated, and the controlling factors were quantitatively assessed. The results showed that the heavy metals in each typical abandoned industrial sites had a high degree of spatial heterogeneity. Among them, Cd was the most susceptible to relevant discrete input from external factors such as human activities, followed by Zn, Pb, Cr, Ni and Cu. The bioaccessible concentration of heavy metals by the physiological-based extraction test (PBET) had a good correlation (R2 = 0.58 ∼ 0.86) with its bioavailable concentration by diethylenetriaminepentaacetic acid (DTPA) extraction. The regression model based on soil parameters had great potential to predict the bioaccessibility of heavy metals in abandoned industrial sites (R2 = 0.49 ∼ 0.95). The total concentration of heavy metals, Fe, soil texture and pH were the controlling factors of the metal bioaccessibility. Compared with the total concentration, the hazard index (HI) and carcinogenic risk (CR) values calculated based on gastrointestinal bioaccessibility were decreased by 39.0∼77.9% and 68.2∼79.9% in adults, and 45.3∼88.0% and 73.9∼83.5% in children, respectively. This work provides a feasible theoretical basis for reliable assessment of the human health risks of heavy metals in the abandoned industrial sites in the future.
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Affiliation(s)
- Jiali Shentu
- Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, Zhejiang Engineering Research Center of Non-ferrous Metal Waste Recycling, School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China; Instrumental Analysis Center of Zhejiang Gongshang University, Hangzhou 310012, China
| | - Yi Fang
- Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, Zhejiang Engineering Research Center of Non-ferrous Metal Waste Recycling, School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Yangyang Wang
- Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, Zhejiang Engineering Research Center of Non-ferrous Metal Waste Recycling, School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Yuxue Cui
- Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, Zhejiang Engineering Research Center of Non-ferrous Metal Waste Recycling, School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Min Zhu
- Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, Zhejiang Engineering Research Center of Non-ferrous Metal Waste Recycling, School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China; Instrumental Analysis Center of Zhejiang Gongshang University, Hangzhou 310012, China.
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10
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Wang B, Tian L, Tian L, Wang X, He Y, Ji R. Insights into Health Risks of Face Paint Application to Opera Performers: The Release of Heavy Metals and Stage-Light-Induced Production of Reactive Oxygen Species. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:3703-3712. [PMID: 36820615 DOI: 10.1021/acs.est.2c03595] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Face paints used by opera performers have been shown to contain high levels of heavy metals. However, whether frequent exposure, via dermal contact and inadvertent oral ingestion, results in occupational diseases is unknown, as is the potential exacerbation of toxicity by high-intensity irradiation from stage lights. In this study, we examined the release of Cr, Cu, Pb, and Zn from 40 face paints and the consequent health risks posed by different practical scenarios involving their use. The results showed that the in vitro bioaccessibility (IVBA) of Cr, Cu, Pb, and Zn in the tested products was, on average, 7.0, 5.5, 19.9, and 7.9% through oral ingestion and 1.1, 2.2, 1.6, and 1.2% through dermal contact, respectively. Stage light irradiation significantly increased the IVBA associated with dermal contact, to the average of 4.8, 34.9, 5.7, and 1.9% for Cr, Cu, Pb, and Zn, respectively. The increase was mainly due to the light-induced generation of reactive oxygen species, particularly hydroxyl free radicals. The vitality and transcriptional response of 3D skin models as well as a quantitative risk assessment of skin sensitization indicated that dermal contact with face paints may induce predictable skin damage and potentially other skin diseases. Long-term exposure to face paints on stage may also pose a non-carcinogenic health risk. The demonstrated health risks to opera performers of face paint exposure should lead to strict regulations regarding the content of theatrical face paints.
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Affiliation(s)
- Bin Wang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Liyan Tian
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Lili Tian
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Xisheng Wang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Yujie He
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
- Quanzhou Institute for Environment Protection Industry, Nanjing University, Quanzhou 362000, China
| | - Rong Ji
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
- Quanzhou Institute for Environment Protection Industry, Nanjing University, Quanzhou 362000, China
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11
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Chen X, Cao S, Wen D, Zhang Y, Wang B, Duan X. Domestic dogs as sentinels of children lead exposure: Multi-pathway identification and source apportionment based on isotope technique. CHEMOSPHERE 2023; 316:137787. [PMID: 36623594 DOI: 10.1016/j.chemosphere.2023.137787] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 12/06/2022] [Accepted: 01/06/2023] [Indexed: 06/17/2023]
Abstract
Environmental lead exposure poses risks to children' health, thus exposure sources and pathways identification remain important concern and research scope. Due to sharing the same environment, domestic animals, especially dogs, have been used as useful sentinels to identify human lead exposure. However, more evidence is needed on whether domestic dogs could be used to identify the lead exposure pathways and sources of children. Thus, this study investigated the dietary habits, behaviors, and household environment of children and dogs in a typical coal-fired area in China. The lead levels and lead isotope ratios (Acronym: LIRs, expressed as 208Pb/206Pb and 207Pb/206Pb) in dogs' and children's blood, as well as in environmental media (food, PM2.5, indoor/outdoor dust, drinking water and soil) were measured to explore the predominant lead pollution sources and exposure pathways of children. The results showed that the LIRs of children's blood (208Pb/206Pb = 2.0703 ± 0.0076, 207Pb/206Pb = 0.8501 ± 0.0052) were similar to those of dogs' blood (208Pb/206Pb = 2.0696 ± 0.0085, 207Pb/206Pb = 0.8499 ± 0.0052), as well as similar to the LIRs of environmental media, i.e. children's food (208Pb/206Pb = 2.0731 ± 0.0057, 207Pb/206Pb = 0.8491 ± 0.0036) and coal (208Pb/206Pb = 2.0683 ± 0.017, 207Pb/206Pb = 0.8515 ± 0.01). Children and dogs had similar lead exposure pathways, but the contributions of each exposure pathway were different, i.e., 83.1% vs. 76.9% for children and dogs via food ingestion, 1.4% vs. 5.6% via particulate matter exposure, and 15.5% vs. 17.5% via household dust exposure, respectively. The contribution of food via ingestion to lead exposure remains dominant, and coal combustion is a main lead exposure source for children and domestic dogs.
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Affiliation(s)
- Xing Chen
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - SuZhen Cao
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Dongsen Wen
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Yaqun Zhang
- Gansu Academy of Eco-environmental Sciences, Lanzhou, 730000, China
| | - Beibei Wang
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Xiaoli Duan
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China.
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12
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Han Q, Wang M, Xu X, Li M, Liu Y, Zhang C, Li S, Wang M. Health risk assessment of heavy metals in road dust from the fourth-tier industrial city in central China based on Monte Carlo simulation and bioaccessibility. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 252:114627. [PMID: 36791504 DOI: 10.1016/j.ecoenv.2023.114627] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 02/01/2023] [Accepted: 02/06/2023] [Indexed: 06/18/2023]
Abstract
Health risks caused by heavy metal (HM) exposure in road dust has attracted extensive attention, but few studies have focused on the health risks of residents living in small- and medium-sized cities with rapid industrialization and urbanization. Thus, 140 road dust samples were collected across Anyang, a typical fourth-tier industrial city in central China, which were analysed for 10 different HMs (Mn, Zn, Pb, V, Cr, As, Cd, Ni, Cu and Co). Monte Carlo simulation and bioaccessibility were used to quantify the health risks of heavy metals comprehensively in road dust. Results revealed a remarkable accumulation of Mn, Zn, Pb, Cd and Cu. According to the Geo-accumulation index and potential ecological risk index, Cd was priority control pollutant. Moreover, 55.0% of the road dust samples reached heavily polluted level, and 52.86% of the samples were at high ecological risk levels. These results illustrated that HM contamination was serious and universal in the road dust of Anyang. The occurrences of HMs were allocated to traffic emissions, natural sources, industrial activities and agricultural activities with contribution rates of 35.4%, 6.0%, 41.6% and 17.0%, respectively. Except for Zn in the gastric phase, all other HMs had relatively low bioaccessibilities in the gastrointestinal system, usually less than 20%. The bioaccessibilities of most HMs were higher in the gastric phase, except for Cr, Ni and Cu, which remained higher in the intestinal phase. The non-carcinogenic risk and carcinogenic risk were remarkably reduced when considering the HM bioaccessibilities in the gastrointestinal system, especially for adults. The outcomes of this paper are valuable for understanding HM contamination in road dust and highlight the importance of risk assessment for populations living in the fourth- and fifth-tier cities.
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Affiliation(s)
- Qiao Han
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, 550081 Guiyang, China; University of Chinese Academy of Sciences, Beijing 100049, China; College of Resource and Environment, Henan Polytechnic University, 454003 Jiaozuo, China
| | - Mingya Wang
- College of Resource and Environment, Henan Polytechnic University, 454003 Jiaozuo, China
| | - Xiaohang Xu
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, 550081 Guiyang, China; Key Laboratory of Karst Georesources and Environment, Ministry of Education, Colleage of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, China
| | - Mengfei Li
- Anyang Iron and Steel Group Co. LTD, 455000 Anyang, China
| | - Yang Liu
- College of Resource and Environment, Henan Polytechnic University, 454003 Jiaozuo, China
| | - Chunhui Zhang
- College of Resource and Environment, Henan Polytechnic University, 454003 Jiaozuo, China
| | - Shehong Li
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, 550081 Guiyang, China.
| | - Mingshi Wang
- College of Resource and Environment, Henan Polytechnic University, 454003 Jiaozuo, China.
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13
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Chen X, Duan X, Cao S, Wen D, Zhang Y, Wang B, Jia C. Source apportionment based on lead isotope ratios: Could domestic dog's blood lead be used to identify the level and sources of lead pollution in children? CHEMOSPHERE 2022; 308:136197. [PMID: 36064012 DOI: 10.1016/j.chemosphere.2022.136197] [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: 04/15/2022] [Revised: 07/24/2022] [Accepted: 08/22/2022] [Indexed: 06/15/2023]
Abstract
Domestic dogs have been proved to be used as "sentinel organisms" to monitor human lead exposure. However, whether dogs' blood can be used to identify the levels and pollution source of children's lead exposure still needs evidence. To evaluate the potential use of domestic dogs' blood lead as an indicator of lead exposure levels and pollution source of children, accompanying with potential environmental media samples, lead concentrations and isotope ratios (expressed as 207Pb/206Pb, 208Pb/206Pb) in blood were investigated and compared between children and dogs, who came from a Pb-Zn smelter area, a coal fired area and a control area without industrial activity. The results showed that there were significant correlations in blood lead levels (BLLs) between children and dogs in the study areas (p < 0.01). The lead isotope ratios (LIRs) in blood of children and dogs were disparate among the three areas, however, the LIRs of dogs were quite correlated with those of children in each area (p < 0.01). With the comparison of LIRs between potential pollution sources (slag, ore, coal, paint) and blood samples, the identified lead sources based on dogs' blood were found to be coincident with those based on children's blood. Ore smelting and coal combustion were the main sources of lead exposure for the dogs and children in the smelting area, and coal combustion was the predominant source for the children and dogs living in the coal burning area and control area. The results showed that dogs' BLLs might be used to estimate children's BLLs, and blood LIRs measurements of dogs' could be used as an alternative for identifying the sources of children's lead exposure. This study further provided relevant evidence for dogs to be sentinels exposed to human lead exposure and an alternative method for source apportionment of children's lead exposure.
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Affiliation(s)
- Xing Chen
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Xiaoli Duan
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China.
| | - SuZhen Cao
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Dongsen Wen
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Yaqun Zhang
- Gansu Academy of Eco-environmental Science, Lanzhou, 730000, China
| | - Beibei Wang
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Chunrong Jia
- School of Public Health, University of Memphis, Memphis, TN, 38152, USA
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14
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de Lima Brum R, Dos Santos M, da Silva Junior UJ, Muccillo-Baisch AL, da Silva Júnior FMR. Urinary Pb levels in schoolchildren from the largest coal mining area in Brazil and its associated factors: a cross-sectional study. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:74407-74415. [PMID: 35635666 DOI: 10.1007/s11356-022-21058-4] [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: 03/31/2022] [Accepted: 05/20/2022] [Indexed: 06/15/2023]
Abstract
Candiota region has the largest coal reserve in Brazil, and previous studies have shown moderate-high levels of metals in the environment, including Pb. On the other hand, there are no studies investigating the factors associated with high levels of urinary Pb in children in the region. To investigate this issue, a cross-sectional study was conducted with 92 schoolchildren from 7 cities comprising this coal-mining region. Socioeconomic and demographic information and parental life habits and children's health information were collected using a semi-structured questionnaire. Diurnal urine samples were collected to quantify Pb levels (µg/g creatinine). Bi- and multivariate Poisson regression with a robust estimator was used to assess factors associated with high levels of Pb. Urinary Pb levels in children in the region vary from not detected to 21.6 µg/g of creatinine. The spatial distribution of urinary Pb levels in children indicated an influence of proximity to mining areas, and this factor was confirmed by Poisson regression analysis (bivariate). Other factors associated with high levels of urinary Pb were non-white mothers, paternal occupational exposure, and low BMI. The findings of this study reveal that the Candiota region is a hotspot for high levels of urinary Pb in children (geometric mean: 3.82 µg/g creatinine) and that, in addition to the proximity to mining areas, factors socioeconomic and health conditions may be associated with these high levels.
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Affiliation(s)
- Rodrigo de Lima Brum
- Universidade Federal do Rio Grande - FURG, Av. Itália, Km 8, S/N Campus Carreiros, Rio Grande, RS, 96203-900, Brazil
| | - Marina Dos Santos
- Universidade Federal do Rio Grande - FURG, Av. Itália, Km 8, S/N Campus Carreiros, Rio Grande, RS, 96203-900, Brazil
| | | | - Ana Luíza Muccillo-Baisch
- Universidade Federal do Rio Grande - FURG, Av. Itália, Km 8, S/N Campus Carreiros, Rio Grande, RS, 96203-900, Brazil
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15
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Liu J, Wang Y, Wang Y, Li Y, Li H, Xu J, Liu X. Novel insights into probabilistic health risk and source apportionment based on bioaccessible potentially toxic elements around an abandoned e-waste dismantling site. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 838:156372. [PMID: 35654206 DOI: 10.1016/j.scitotenv.2022.156372] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 05/06/2022] [Accepted: 05/27/2022] [Indexed: 06/15/2023]
Abstract
The study of potentially toxic element (PTE) hazards around e-waste recycling areas has attracted increasing attention but does not consider elemental bioaccessibility. Here, the respiratory and oral bioaccessibilities were incorporated into probabilistic health risk evaluation and source contribution apportionment. The results showed that soil Cd yielded the highest respiratory and oral bioaccessibility, whereas Cr in soils and vegetables attained the lowest oral bioaccessibility. When incorporating metal bioaccessibility into health risk assessment, a 48.3%-55.7% overestimation of non-cancer and cancer risks can be avoided relative to the risk assessment based on the total concentrations of PTEs. More importantly, priority control metals were misidentified without consideration of bioaccessibility. Cadmium, As, and Cr were screened as the priority metal(loid)s for targeted risk control based on the total PTEs, whereas Cd, Zn, and Cu were the priority metal(loid)s based on the bioaccessible PTEs. Furthermore, source apportionment revealed that >50% of oral bioaccessible Cd, Cu, Ni, Pb, and Zn in farmland were contributed by e-waste dismantling activities, whereas bioaccessible As and Cr mainly originated from agrochemical applications and natural sources, respectively. This study emphasizes the refinement of risk estimation and source apportionment through metal bioaccessibility adjustment, which facilitates the realistic assessment of adverse health effects in humans and the precise identification of high-risk sources.
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Affiliation(s)
- Jian Liu
- College of Environmental and Resource Sciences, Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou 310058, China
| | - Yiheng Wang
- College of Environmental and Resource Sciences, Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou 310058, China
| | - Yanni Wang
- College of Environmental and Resource Sciences, Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou 310058, China
| | - Yiren Li
- College of Environmental and Resource Sciences, Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou 310058, China
| | - Hongbo Li
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Jianming Xu
- College of Environmental and Resource Sciences, Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou 310058, China
| | - Xingmei Liu
- College of Environmental and Resource Sciences, Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou 310058, China.
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16
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Yu YQ, Luo HQ, Yang JY. Health risk of fluorine in soil from a phosphorus industrial area based on the in-vitro oral, inhalation, and dermal bioaccessibility. CHEMOSPHERE 2022; 294:133714. [PMID: 35065175 DOI: 10.1016/j.chemosphere.2022.133714] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 01/17/2022] [Accepted: 01/18/2022] [Indexed: 06/14/2023]
Abstract
Health risk of F in soil is of special concern due to the continuously elevated concentration of F in soil. However, there is still a dearth of risk assessments of F in soil based on in-vitro bioaccessibility posed by multiple exposure routes. Herein, the oral, inhalation, and dermal bioaccessibility of F in soil was firstly obtained by adapting and combining in-vitro methods, which then was introduced to remedy an information gap of a comprehensive risk of F in soil posed by a multi-exposure pathway. Combined in-vitro tests indicate the oral, inhalation, and dermal bioaccessibility of F was 13.15 ± 2.63%, 16.55 ± 2.63%, and 1.27 ± 0.73%, respectively. Plasma yielded a detoxic potential for the absorbed F after digesting in small intestine, while effects of enzymes, sweat, and food on the oral bioaccessibility of F were insignificant. Different with metals, the major dissolving phase of F was the interstitial fluid in the deep lung instead of in the alveolar macrophages intracellular environment. A potentially major release of F in the exocrine sweat was noted than in the apocrine sweat. Risk assessments based on the daily exposure incorporated with the in-vitro bioaccessibility suggested that compared with inhalation and dermal contact, oral ingestion was the main exposure route of F in soil to human. Present findings provide insights into the bioaccessibility and health risk of F in soil by multiple exposure routes, which are crucial for the risk control of F contamination in soil.
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Affiliation(s)
- Ya-Qi Yu
- College of Architecture and Environment, Sichuan University, Chengdu, 610065, China
| | - Hou-Qiao Luo
- Sichuan Academy of Environmental Policy and Planning, Chengdu, 610065, China
| | - Jin-Yan Yang
- College of Architecture and Environment, Sichuan University, Chengdu, 610065, China.
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17
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Xu DM, Fu RB. The mechanistic understanding of potential bioaccessibility of toxic heavy metals in the indigenous zinc smelting slags with multidisciplinary characterization. JOURNAL OF HAZARDOUS MATERIALS 2022; 425:127864. [PMID: 34915297 DOI: 10.1016/j.jhazmat.2021.127864] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 11/17/2021] [Accepted: 11/18/2021] [Indexed: 06/14/2023]
Abstract
Smelting slags is a well-known industrial solid waste, while there were limited studies on the key factors controlling the potential health risks caused by these smelting slags. In this work, the metal bioaccessibility in the size fractionated-zinc smelting slags was examined using various In vitro assays, in combination with multidisciplinary methods. The results indicated that the bioaccessible fractions of heavy metals showed a significant difference, but no statistical difference among different particle sizes of the zinc smelting slags. The bioaccessible metal fractions in the gastric (GP) and gastrointestinal (GIP) phases were 0 (Cr) - 91.39% (Cd)) and 0 (Cr) - 47.80% (Ni). Among the studied metals, Cd, Cu, Mn, Pb and Zn were the most bioaccessible to human. The Pearson correlation analysis showed that the carbonate bound phases of heavy metals were responsible for their bioaccessibility in GP and GIP. Moreover, the combined results of multidisciplinary characterization also further implied that the solubility behaviors of toxic elements in the smelting slags were dominated by soluble metal bearing- mineral phases and absorbable Fe, Mn and Al-rich minerals and metal bearing-precipitates during SBRC extractions. Therefore, these study results provide a insight into the potential controls of metal bioaccessibility in the zinc smelting slags, which was of great significance from the aspects of their resource recycling and risk management.
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Affiliation(s)
- Da-Mao Xu
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, PR China; Centre for Environmental Risk Management and Remediation of Soil and Groundwater, Tongji University, Shanghai 200092, PR China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, PR China.
| | - Rong-Bing Fu
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, PR China; Centre for Environmental Risk Management and Remediation of Soil and Groundwater, Tongji University, Shanghai 200092, PR China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, PR China.
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18
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Han Q, Cui C, Jiang S, Deng C, Jin Z. Effect of Water Evaporation on the Inhibition of Spontaneous Coal Combustion. ACS OMEGA 2022; 7:6824-6833. [PMID: 35252676 PMCID: PMC8892916 DOI: 10.1021/acsomega.1c06418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 02/04/2022] [Indexed: 06/14/2023]
Abstract
Spontaneous coal combustion is the primary cause of coal mine fires. During the production process, spontaneous coal combustion in the goaf is often affected by air leakage, which weakens or annuls the effect of inhibitors and leads to secondary oxidation. However, the action mechanism of inhibitors on secondary oxidation spontaneous coal combustion remains unclear. Thus, this study analyzes the influence of moisture evaporation on the performance of a high-water-content physical inhibitor (HWPI) using the Carbolite temperature-programmed experiment, differential scanning calorimetry, scanning electron microscopy, and a MINI MR test. The results demonstrate that as the moisture content of the inhibitor decreased, after being treated with the HWPI and drying for 24 h, the concentrations of O2, CO, and CO2 were found to be lower than the gas concentration of raw coal, which showed that although the moisture content is reduced, the treated coal sample still has a lower spontaneous combustion tendency than the raw coal. The apparent activation energy was reduced, and the heat absorption per unit time decreased, which eventually weakened or annulled the effect of the HWPI. Future research should further improve existing inhibitor types to reduce the impact of secondary oxidation on spontaneous coal combustion caused by water evaporation.
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Affiliation(s)
- Qing Han
- College
of Safety and Emergency Management and Engineering, Taiyuan University of Technology, Jinzhong 030600, China
| | - Chuanbo Cui
- College
of Safety and Emergency Management and Engineering, Taiyuan University of Technology, Jinzhong 030600, China
| | - Shuguang Jiang
- Key
Laboratory of Gas and Fire Control for Coal Mines (China University
of Mining & Technology), Ministry of
Education, Xuzhou 221116, China
- School
of Safety Engineering, China University
of Mining & Technology, Xuzhou 221116, China
| | - Cunbao Deng
- College
of Safety and Emergency Management and Engineering, Taiyuan University of Technology, Jinzhong 030600, China
| | - Zhixin Jin
- College
of Safety and Emergency Management and Engineering, Taiyuan University of Technology, Jinzhong 030600, China
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19
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Wang S, Wang L, Huan Y, Wang R, Liang T. Concentrations, spatial distribution, sources and environmental health risks of potentially toxic elements in urban road dust across China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 805:150266. [PMID: 34536864 DOI: 10.1016/j.scitotenv.2021.150266] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 09/04/2021] [Accepted: 09/06/2021] [Indexed: 05/25/2023]
Abstract
Potentially toxic element (PTE) pollution is widespread in road dust across China, and the effects of PTEs in road dust on health cannot be ignored. In this study, the concentrations of six PTEs (Pb, Cd, Cr, Cu, Zn and Ni) in 4336 road dust samples from 58 cities in 31 provincial regions of China taken after 2000 were obtained from the literatures. Based on these data, the spatial distribution, pollution sources, and ecological and human health risks of PTEs in road dust were comprehensively assessed and the main pollution factors and areas of high risk were identified. The results revealed that PTE levels are generally higher in eastern cities than western cities in China. The key driving factors are socioeconomic factors, including those related to transportation, industry, and population, for which the contribution rates are 57.80%, 55.39% and 37.19%, respectively. PTEs in the road dust with high ecological risks are mainly distributed in the southeastern coastal areas and the Beijing-Tianjin-Hebei region. No obvious noncarcinogenic risk was found for PTEs in road dust, but Cd and Pb may have potential noncarcinogenic risk, mainly distributed in cities in western China. Therefore, regions and pollution sources contributing to Pb and Cd levels should be monitored. The control of PTE pollution in China is a priority for ecological and environmental protection.
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Affiliation(s)
- Siyu Wang
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lingqing Wang
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yizhong Huan
- School of Public Policy and Management, Tsinghua University, Beijing 100084, China
| | - Rui Wang
- University of Chinese Academy of Sciences, Beijing 100049, China; State Key Lab of Urban and Regional Ecology, Research Centre for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Tao Liang
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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Cui A, Xiao P, Hu B, Ma Y, Fan Z, Wang H, Zhou F, Zhuang Y. Blood Lead Level Is Negatively Associated With Bone Mineral Density in U.S. Children and Adolescents Aged 8-19 Years. Front Endocrinol (Lausanne) 2022; 13:928752. [PMID: 35846292 PMCID: PMC9283721 DOI: 10.3389/fendo.2022.928752] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 06/03/2022] [Indexed: 11/13/2022] Open
Abstract
CONTEXT The relationship of lead (Pb) exposure with bone health in children and adolescents remains controversial. OBJECTION We aimed to investigate the association of blood lead levels (BLL) with bone mineral density (BMD) in American children and adolescents using data from the National Health and Nutrition Examination Survey (NHANES), 2005-2010. METHODS We analyzed 5,583 subjects aged 8-19 years (mean age, 13.49 ± 3.35 years) from the NHANES 2005-2010. BLL was tested using inductively coupled plasma mass spectrometry. BMD was measured by dual-energy X-ray absorptiometry (DXA) at the lumbar spine, total femur, and femur neck. Multivariate linear regression models were used to explore the association between BLL and BMD, adjusting for age, gender, race/ethnicity, poverty income ratio (PIR), body mass index (BMI), serum calcium, and serum phosphorus. RESULTS BLL was negatively correlated with BMD at different sites of interest in children and adolescents. For every 1mg/dl increase in BLL, the BMD of the total spine, total hip, and femoral neck decreased by 0.011 g/cm2, 0.008 g/cm2, and 0.006 g/cm2. In addition, Pb affected the lumbar spine more than the femur. The effect estimates were stronger in girls than boys at the lumbar spine (P for interaction= 0.006). This negative association remained significant in American children and adolescents after excluding individuals with BLL more than 3.5 ug/dl. CONCLUSION Our study indicates that BLL is negatively correlated with BMD at different sites of interest in children and adolescents aged 8-19 years, even in the reference range. More research is needed to elucidate the relationships between Pb and bone health in children and adolescents, including specific mechanisms and confounding factors like race/ethnicity, gender, and age.
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Affiliation(s)
- Aiyong Cui
- Department of Pelvic and Acetabular Surgery, HongHui Hospital, Xi’an Jiaotong University, Xi’an, China
| | - Peilun Xiao
- Department of Orthopaedics, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China
| | - Baoliang Hu
- Department of gastroenterology surgery, HongHui Hospital, Xi’an Jiaotong University, Xi’an, China
| | - Yuzhuo Ma
- Department of Orthopedics, HongHui Hospital, Xi’an Jiaotong University, Xi’an, China
| | - Zhiqiang Fan
- Department of Pelvic and Acetabular Surgery, HongHui Hospital, Xi’an Jiaotong University, Xi’an, China
| | - Hu Wang
- Department of Pelvic and Acetabular Surgery, HongHui Hospital, Xi’an Jiaotong University, Xi’an, China
| | - Fengjin Zhou
- Department of Pelvic and Acetabular Surgery, HongHui Hospital, Xi’an Jiaotong University, Xi’an, China
- *Correspondence: Yan Zhuang, ; Fengjin Zhou,
| | - Yan Zhuang
- Department of Pelvic and Acetabular Surgery, HongHui Hospital, Xi’an Jiaotong University, Xi’an, China
- *Correspondence: Yan Zhuang, ; Fengjin Zhou,
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Khosravi K, Barzegar R, Golkarian A, Busico G, Cuoco E, Mastrocicco M, Colombani N, Tedesco D, Ntona MM, Kazakis N. Predictive modeling of selected trace elements in groundwater using hybrid algorithms of iterative classifier optimizer. JOURNAL OF CONTAMINANT HYDROLOGY 2021; 242:103849. [PMID: 34147829 DOI: 10.1016/j.jconhyd.2021.103849] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Revised: 06/06/2021] [Accepted: 06/09/2021] [Indexed: 06/12/2023]
Abstract
Trace element (TE) pollution in groundwater resources is one of the major concerns in both developing and developed countries as it can directly affect human health. Arsenic (As), Barium (Ba), and Rubidium (Rb) can be considered as TEs naturally present in groundwater due to water-rock interactions in Campania Plain (CP) aquifers, in South Italy. Their concentration could be predicted via some readily available input variables using an algorithm like the iterative classifier optimizer (ICO) for regression, and novel hybrid algorithms with additive regression (AR-ICO), attribute selected classifier (ASC-ICO) and bagging (BA-ICO). In this regard, 244 groundwater samples were collected from water wells within the CP and analyzed with respect to the electrical conductivity, pH, major ions and selected TEs. To develop the models, the available dataset was divided randomly into two subsets for model training (70% of the dataset) and evaluation (30% of the dataset), respectively. Based on the correlation coefficient (r), different input variables combinations were constructed to find the most effective one. Each model's performance was evaluated using common statistical and visual metrics. Results indicated that the prediction of As and Ba concentrations strongly depends on HCO3-, while Na+ is the most effective variable on Rb prediction. Also, the findings showed that the most powerful predictive models were those that used all the available input variables. According to models' performance evaluation metrics, the hybrid ASC-ICO outperformed other hybrid (BA- and AR-ICO) and standalone (ICO) algorithms to predict As and Ba concentrations, while both hybrid ASC- and BA-ICO models had higher accuracy and lower error than other algorithms for Rb prediction.
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Affiliation(s)
- Khabat Khosravi
- Department of Watershed Management Engineering, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Rahim Barzegar
- Department of Bioresource Engineering, McGill University, Montreal, Canada; Department of Geography & Environmental Studies, Wilfrid Laurier University, Waterloo, Canada
| | - Ali Golkarian
- Department of Watershed Management Engineering, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Gianluigi Busico
- Department of Geology, Lab. of Engineering Geology & Hydrogeology, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece; Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania "Luigi Vanvitelli", Via Vivaldi 43, Caserta 81100, Italy.
| | - Emilio Cuoco
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania "Luigi Vanvitelli", Via Vivaldi 43, Caserta 81100, Italy
| | - Micòl Mastrocicco
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania "Luigi Vanvitelli", Via Vivaldi 43, Caserta 81100, Italy
| | - Nicolò Colombani
- Department of Materials, Environmental Sciences and Urban Planning, Polytechnic University of Marche, Via Brecce Bianche 12, 60131, Italy
| | - Dario Tedesco
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania "Luigi Vanvitelli", Via Vivaldi 43, Caserta 81100, Italy
| | - Maria Margarita Ntona
- Department of Geology, Lab. of Engineering Geology & Hydrogeology, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece; Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania "Luigi Vanvitelli", Via Vivaldi 43, Caserta 81100, Italy
| | - Nerantzis Kazakis
- Department of Geology, Lab. of Engineering Geology & Hydrogeology, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece.
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Ye L, Zhong B, Huang M, Chen W, Wang X. Pollution evaluation and children's multimedia exposure of atmospheric arsenic deposition in the Pearl River Delta, China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 787:147629. [PMID: 34000541 DOI: 10.1016/j.scitotenv.2021.147629] [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: 02/22/2021] [Revised: 04/20/2021] [Accepted: 04/30/2021] [Indexed: 06/12/2023]
Abstract
The populous Pearl River Delta (PRD) region in China suffers from serious air arsenic (As) pollution. The objective of this study was to explore the pollution situation of atmospheric arsenic deposition in the PRD region, and to evaluate the associated multimedia daily intake in children. The average deposition flux was 3921.7 μg/m2/year during the 2016-2017, and the pollution situation was even worse than that in 2015. A continuously increasing trend of arsenic atmospheric deposition was found. The bioaccessibility of As in the settled dust was determined as about 22% by a physiologically based extraction test (PBET). After corrected with the bioaccessibilities of As in the settled dust and food items, the geometry means (GM) value of daily uptake through multimedia ingestion of produce (dust and diet) originated from arsenic atmospheric deposition was 0.23 μg/kg/day for 1- to 6-year-old children. The contribution of the non-dietary oral exposure (settled dust) was negligible and just accounted for only 0.01% of the daily uptake. This estimated value was much lower than those in the literatures, in which the bioaccessibility of As was not taken into account, concluding that the role of the settled dust in the total daily intake may have been overestimated previously. Milk, eggs and freshwater fish were the dominant pathways for children to intake the products derived from atmospheric arsenic deposition. There still be a concern about the high non-carcinogenic and carcinogenic risk by long-term multimedia ingestion. Special care should be considered toward the emission sources of air arsenic, including the coal combustion from industries and construction dust, etc., to reduce the negative effect of air arsenic in children.
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Affiliation(s)
- Lyumeng Ye
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, PR China
| | - Buqing Zhong
- Guangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Institute for Environmental and Climate Research, Jinan University, Guangzhou 510632, China; Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
| | - Minjuan Huang
- School of Atmospheric Sciences, and Guangdong Province Key Laboratory for Climate Change and Natural Disaster Studies, Sun Yat-sen University, Guangzhou 510275, China
| | - Weihua Chen
- Guangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Institute for Environmental and Climate Research, Jinan University, Guangzhou 510632, China
| | - Xuemei Wang
- Guangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Institute for Environmental and Climate Research, Jinan University, Guangzhou 510632, China.
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23
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Cao Y, Li X, He F, Sun X, Zhang X, Yang T, Dong J, Gao Y, Zhou Q, Shi D, Wang J, Yu H. Comprehensive screen the lead and other toxic metals in total environment from a coal-gas industrial city (NW, China): Based on integrated source-specific risks and site-specific blood lead levels of 0-6 aged children. CHEMOSPHERE 2021; 278:130416. [PMID: 33831683 DOI: 10.1016/j.chemosphere.2021.130416] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 03/21/2021] [Accepted: 03/24/2021] [Indexed: 06/12/2023]
Abstract
A new integrated source-specific risk model and site-specific blood lead levels (BLLs) of 0-6 children were introduced to comprehensive understand the status of the toxic metals in soil-dust-plant total environment from a Coal-Gas industrial city, NW China. 144 samples were collected and ten toxic metals (As, Ba, Co, Cr, Cu, Mn, Ni, Sr, Pb, and Zn) were screened by XRF and ICP-MS. It was found that the occurrences of toxic metals deferred in the different medium, such as Co, Cu, Pb, and Zn observed the trend of accumulating in soil and plant compared to clustered distributions of Cr, Mn and Ni preferred to accumulate in dust. However, few bioaccumulations observed in Ulmus pumila L. Toxic metals distributions in majority of sites influenced by coal combustion mixed sources and industrial activities posed the high integrated ecological risks and caused significant non-carcinogenic and carcinogenic integrated risks for local 0-6 children identified by new integrated source-specific risk model, especially observed in the priority contaminants Co and Pb. The site-specific BLLs confirmed that younger children fewer than 4 lived in the north region were more vulnerable to priority Pb pollution as their BLLs above 50 μg/L, almost up to 80 μg/L. Although proportions of source-specific risks to toxic metals changed in soil and dust, the critical sources from coal combustions and industrial activities posed the most important contribution to the local risks. Therefore, effective strategies targeting at critical sources on coal industries should be conducted to reduce risks, and mostly emphasize on the north hotspot areas.
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Affiliation(s)
- Yuhan Cao
- Department of Environmental Science, School of Geograph and Tourim, Shaanxi Normal University, Xi'an, Shaanxi, 710062, PR China; International Joint Research Centre of Shaanxi Province for Pollutant Exposure and Eco-environmental Health, Xi'an, Shaanxi, 710062, PR China
| | - Xiaoping Li
- Department of Environmental Science, School of Geograph and Tourim, Shaanxi Normal University, Xi'an, Shaanxi, 710062, PR China; International Joint Research Centre of Shaanxi Province for Pollutant Exposure and Eco-environmental Health, Xi'an, Shaanxi, 710062, PR China.
| | - Feng He
- Department of Environmental Science, School of Geograph and Tourim, Shaanxi Normal University, Xi'an, Shaanxi, 710062, PR China; International Joint Research Centre of Shaanxi Province for Pollutant Exposure and Eco-environmental Health, Xi'an, Shaanxi, 710062, PR China
| | - Xuemeng Sun
- Department of Environmental Science, School of Geograph and Tourim, Shaanxi Normal University, Xi'an, Shaanxi, 710062, PR China; International Joint Research Centre of Shaanxi Province for Pollutant Exposure and Eco-environmental Health, Xi'an, Shaanxi, 710062, PR China
| | - Xu Zhang
- Department of Environmental Science, School of Geograph and Tourim, Shaanxi Normal University, Xi'an, Shaanxi, 710062, PR China; International Joint Research Centre of Shaanxi Province for Pollutant Exposure and Eco-environmental Health, Xi'an, Shaanxi, 710062, PR China
| | - Tao Yang
- Department of Environmental Science, School of Geograph and Tourim, Shaanxi Normal University, Xi'an, Shaanxi, 710062, PR China; International Joint Research Centre of Shaanxi Province for Pollutant Exposure and Eco-environmental Health, Xi'an, Shaanxi, 710062, PR China
| | - Jie Dong
- Department of Environmental Science, School of Geograph and Tourim, Shaanxi Normal University, Xi'an, Shaanxi, 710062, PR China; International Joint Research Centre of Shaanxi Province for Pollutant Exposure and Eco-environmental Health, Xi'an, Shaanxi, 710062, PR China
| | - Yu Gao
- Department of Environmental Science, School of Geograph and Tourim, Shaanxi Normal University, Xi'an, Shaanxi, 710062, PR China; International Joint Research Centre of Shaanxi Province for Pollutant Exposure and Eco-environmental Health, Xi'an, Shaanxi, 710062, PR China
| | - Qishang Zhou
- Department of Environmental Science, School of Geograph and Tourim, Shaanxi Normal University, Xi'an, Shaanxi, 710062, PR China; International Joint Research Centre of Shaanxi Province for Pollutant Exposure and Eco-environmental Health, Xi'an, Shaanxi, 710062, PR China
| | - Danqian Shi
- Department of Environmental Science, School of Geograph and Tourim, Shaanxi Normal University, Xi'an, Shaanxi, 710062, PR China; International Joint Research Centre of Shaanxi Province for Pollutant Exposure and Eco-environmental Health, Xi'an, Shaanxi, 710062, PR China
| | - Jiwen Wang
- Department of Environmental Science, School of Geograph and Tourim, Shaanxi Normal University, Xi'an, Shaanxi, 710062, PR China; International Joint Research Centre of Shaanxi Province for Pollutant Exposure and Eco-environmental Health, Xi'an, Shaanxi, 710062, PR China
| | - Hongtao Yu
- International Joint Research Centre of Shaanxi Province for Pollutant Exposure and Eco-environmental Health, Xi'an, Shaanxi, 710062, PR China; School of Computer, Mathematical and Natural Sciences, Morgan State University, Baltimore, MD, 21251, USA
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Liu Y, Yang H, Wan R, Khan MR, Wang N, Busquets R, Deng R, He Q, Zhao Z. Ratiometric G-Quadruplex Assay for Robust Lead Detection in Food Samples. BIOSENSORS-BASEL 2021; 11:bios11080274. [PMID: 34436076 PMCID: PMC8391220 DOI: 10.3390/bios11080274] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 08/03/2021] [Accepted: 08/04/2021] [Indexed: 12/29/2022]
Abstract
Lead (Pb2+) pollution is a serious food safety issue, rapid detection of Pb2+ residual in food is vital to guarantee food quality and safety. Here we proposed ratiometric aptamer probes, allowing robust Pb2+ supervision in food samples. Pb2+ specific aptamer can bolster a transition of G-quadruplex structural response to Pb2+; this process can be monitored by N-methyl mesoporphyrin IX (NMM), which is highly specific to G-quadruplex. Particularly, the utilization of G-quadruplex specific dye and terminal-labeled fluorophore allowed to endue ratiometric signal outputs towards Pb2+, dramatically increase the robustness for lead detection. The ratiometric G-quadruplex assay allowed a facile and one-pot Pb2+ detection at room temperature using a single-stranded DNA aptamer. We demonstrated its feasibility for detecting lead pollution in fresh eggs and tap water samples. The ratiometric G-quadruplex design is expected to be used for on-site Pb2+ testing associated with food safety.
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Affiliation(s)
- Yumei Liu
- College of Biomass Science and Engineering, Healthy Food Evaluation Research Center and Key Laboratory of Food Science and Technology of Ministry of Education of Sichuan Province, Sichuan University, Chengdu 610065, China; (Y.L.); (H.Y.); (R.W.); (N.W.); (R.D.); (Q.H.)
| | - Hao Yang
- College of Biomass Science and Engineering, Healthy Food Evaluation Research Center and Key Laboratory of Food Science and Technology of Ministry of Education of Sichuan Province, Sichuan University, Chengdu 610065, China; (Y.L.); (H.Y.); (R.W.); (N.W.); (R.D.); (Q.H.)
| | - Rui Wan
- College of Biomass Science and Engineering, Healthy Food Evaluation Research Center and Key Laboratory of Food Science and Technology of Ministry of Education of Sichuan Province, Sichuan University, Chengdu 610065, China; (Y.L.); (H.Y.); (R.W.); (N.W.); (R.D.); (Q.H.)
| | - Mohammad Rizwan Khan
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Nan Wang
- College of Biomass Science and Engineering, Healthy Food Evaluation Research Center and Key Laboratory of Food Science and Technology of Ministry of Education of Sichuan Province, Sichuan University, Chengdu 610065, China; (Y.L.); (H.Y.); (R.W.); (N.W.); (R.D.); (Q.H.)
| | - Rosa Busquets
- School of Life Sciences, Pharmacy and Chemistry, Kingston University London, Penrhyn Road, Kingston-upon-Thames, Surrey KT1 2EE, UK;
| | - Ruijie Deng
- College of Biomass Science and Engineering, Healthy Food Evaluation Research Center and Key Laboratory of Food Science and Technology of Ministry of Education of Sichuan Province, Sichuan University, Chengdu 610065, China; (Y.L.); (H.Y.); (R.W.); (N.W.); (R.D.); (Q.H.)
| | - Qiang He
- College of Biomass Science and Engineering, Healthy Food Evaluation Research Center and Key Laboratory of Food Science and Technology of Ministry of Education of Sichuan Province, Sichuan University, Chengdu 610065, China; (Y.L.); (H.Y.); (R.W.); (N.W.); (R.D.); (Q.H.)
| | - Zhifeng Zhao
- College of Biomass Science and Engineering, Healthy Food Evaluation Research Center and Key Laboratory of Food Science and Technology of Ministry of Education of Sichuan Province, Sichuan University, Chengdu 610065, China; (Y.L.); (H.Y.); (R.W.); (N.W.); (R.D.); (Q.H.)
- Correspondence: ; Tel.: +86-028-8546-7328
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25
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Li X, Yan X, Wu T, Zhang X, Yu H. Risks and phyto-uptake of micro-nano size particulates bound with potentially toxic metals in Pb-contaminated alkaline soil (NW China): The role of particle size fractions. CHEMOSPHERE 2021; 272:129508. [PMID: 33494015 DOI: 10.1016/j.chemosphere.2020.129508] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 12/08/2020] [Accepted: 12/29/2020] [Indexed: 06/12/2023]
Abstract
The fate and risk in the environment of potentially toxic metals (PTMs) pollutants depends on the size-fractions of contaminated soil. In this study, the variable micro-nano size-fractions of 50-250 μm, 5-50 μm, 1-5 μm, <1 μm in long-term Pb-contaminated alkaline soil (NW China) were obtained by Sequential Wet Sieving Separation Procedure (SWSSP). The chemical speciation, mobility and risk of PTMs in micro-nano particle fractions as well as their uptaken and translocation in Maize (Zea mays L.) plant were systematically determined. The results demonstrated that higher accumulation of both investigated PTMs was observed in the fine fractions of <1 μm. The metallic Pb predominantly occurred in all size-fractions (65%-86%) identified by XPS, and the reducible forms of lead oxide (Ⅱ,Ⅳ) would also likely preferred to enrich in the fine fraction of <1 μm. The mobility and bioaccessibility of PTMs in fine fraction of <1 μm were higher than other fractions, which were identified by the multi-indices, enrichment factor (EF), accumulation factor (AF), mobility factor (MF), potential ecological risk index of single metal (Eri) and the comprehensive potential ecological risk index (RI). The scenario for phyto-uptake of Pb and Cu in <1 μm soil nanoparticles under pot tests indicated that the Pb and Cu enriched in <1 μm with high ecological risk were inclined to translocate into the Maize roots and shoots with nano size fractions. The results implied that further environmental management should be needed in order to prevent the risk of PTMs from Pb-bearing micro-nano size fractions in the industrial contaminated alkaline soil.
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Affiliation(s)
- Xiaoping Li
- Department of Environmental Science, School of Geograph and Tourim, Shaanxi Normal University, Xi'an, Shaanxi, 710062, PR China; International Joint Research Centre of Shaanxi Province for Pollutant Exposure and Eco-environmental Health, Xi'an, Shaanxi, 710062, PR China.
| | - Xiangyang Yan
- International Joint Research Centre of Shaanxi Province for Pollutant Exposure and Eco-environmental Health, Xi'an, Shaanxi, 710062, PR China; School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an, Shaanxi, 710062, PR China
| | - Ting Wu
- Department of Environmental Science, School of Geograph and Tourim, Shaanxi Normal University, Xi'an, Shaanxi, 710062, PR China; International Joint Research Centre of Shaanxi Province for Pollutant Exposure and Eco-environmental Health, Xi'an, Shaanxi, 710062, PR China
| | - Xu Zhang
- Department of Environmental Science, School of Geograph and Tourim, Shaanxi Normal University, Xi'an, Shaanxi, 710062, PR China; International Joint Research Centre of Shaanxi Province for Pollutant Exposure and Eco-environmental Health, Xi'an, Shaanxi, 710062, PR China
| | - Hongtao Yu
- International Joint Research Centre of Shaanxi Province for Pollutant Exposure and Eco-environmental Health, Xi'an, Shaanxi, 710062, PR China; School of Computer, Mathematical and Natural Sciences, Morgan State University, Baltimore, MD, 21251, USA
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26
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Kelepertzis E, Chrastný V, Botsou F, Sigala E, Kypritidou Z, Komárek M, Skordas K, Argyraki A. Tracing the sources of bioaccessible metal(loid)s in urban environments: A multidisciplinary approach. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 771:144827. [PMID: 33529817 DOI: 10.1016/j.scitotenv.2020.144827] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 12/21/2020] [Accepted: 12/21/2020] [Indexed: 06/12/2023]
Abstract
Understanding the links between sources of magnetic particles and bioaccessibility of metal(loids) in environmental sampling media is crucial for better evaluating human health risks, although relevant information in the scientific literature is scarce. Here, soil, road and house dust samples from a heavy industrial area in Greece were characterized in a multidisciplinary study combining magnetic measurements, SEM/EDS analyses, bioaccessibility measurements and Pb isotopic analyses of bioaccessible Pb. The oral and inhalable bioaccessible fractions of As, Cd, Cr, Cu, Fe, Mn, Ni, Pb and Zn were assessed by applying simulated gastric and lung solutions. SEM/EDS analysis revealed the abundant presence of anthropogenic Fe-containing spherules of industrial origin in all sampling media, often containing minor contents of Cr, Cu, Mn, Pb and Zn. The inhalation bioaccessibility (%) in all environmental compartments was higher than the oral one for most elements analyzed in the present study. Clear associations between magnetic susceptibility and bioaccessible amounts of most of analyzed elements were encountered for the soil and road dust. The isotopic analyses of bioaccessible Pb showed that there are significant differences in the isotopic ratios between total and bioaccessible Pb. We conclude that Pb solubilized by the simulated gastric and lung extractions is principally anthropogenic, representing a mixture of industrial Pb and Pb related to the past usage of leaded petrol. Low values of 206Pb/207Pb were accompanied by high bioaccessible contents of Cd, Pb and Zn indicating that anthropogenic (mostly industrial) sources exert influence on the bioaccessible forms of these metals. Coupling magnetic and bioaccessibility measurements with stable isotopic technique of bioaccessible Pb is more reliable for determining Pb and other metal sources with high oral and inhalation bioaccessibility.
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Affiliation(s)
- Efstratios Kelepertzis
- Department of Geology and Geoenvironment, National and Kapodistrian University of Athens, Panepistimiopolis, Zographou, 15784 Athens, Greece.
| | - Vladislav Chrastný
- Department of Environmental Geosciences, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, 165 00 Prague-Suchdol, Czech Republic
| | - Fotini Botsou
- Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, Zographou, 157 84 Athens, Greece
| | - Evangelia Sigala
- Department of Geology and Geoenvironment, National and Kapodistrian University of Athens, Panepistimiopolis, Zographou, 15784 Athens, Greece
| | - Zacharenia Kypritidou
- Department of Geology and Geoenvironment, National and Kapodistrian University of Athens, Panepistimiopolis, Zographou, 15784 Athens, Greece
| | - Michael Komárek
- Department of Environmental Geosciences, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, 165 00 Prague-Suchdol, Czech Republic
| | - Konstantinos Skordas
- Department of Ichthyology and Aquatic Environment, School of Agricultural Sciences, University of Thessaly, Volos, Greece
| | - Ariadne Argyraki
- Department of Geology and Geoenvironment, National and Kapodistrian University of Athens, Panepistimiopolis, Zographou, 15784 Athens, Greece
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27
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Wu J, Tou F, Yang Y, Liu C, Hower JC, Baalousha M, Wang G, Liu M, Hochella MF. Metal-Containing Nanoparticles in Low-Rank Coal-Derived Fly Ash from China: Characterization and Implications toward Human Lung Toxicity. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:6644-6654. [PMID: 33969690 DOI: 10.1021/acs.est.1c00434] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Characterization of nanoparticles (NPs) in coal fly ashes (CFAs) is critical for better understanding the potential health-related risks resulting from coal combustion. Based on single-particle (SP)-inductively coupled plasma mass spectrometry (ICP-MS) coupled with transmission electron microscopy techniques, this study is the first to determine the concentrations and sizes of metal-containing NPs in low-rank coal-derived fly ashes. Despite only comprising a minor component of the studied CFAs by mass, NPs were the dominant fraction by particle number. Fe- and Ti-containing NPs were identified as the dominant NPs with their particle number concentration ranging from 2.5 × 107 to 2.5 × 108 particles/mg. In addition, the differences of Fe-/Ti-containing NPs in various CFAs were regulated by the coalification degree of feed coals and combustion conditions of all of the low-rank CFAs tested. In the cases where these NPs in CFAs become airborne and are inhaled, they can be taken up in pulmonary interstitial fluids. This study shows that in Gamble's solution (a lung fluid simulant), 51-87% of Fe and 63-89% of Ti (ratio of the mass of Fe-/Ti-containing NPs to the total mass of Fe/Ti) exist in the NP form and remain suspended in pulmonary fluid simulants. These NPs are bioavailable and may induce lung tissue damage.
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Affiliation(s)
- Jiayuan Wu
- Key Laboratory of Geographic Information Science (Ministry of Education), School of Geographical Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Feiyun Tou
- Key Laboratory of Geographic Information Science (Ministry of Education), School of Geographical Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Yi Yang
- Key Laboratory of Geographic Information Science (Ministry of Education), School of Geographical Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Chang Liu
- Key Laboratory of Geographic Information Science (Ministry of Education), School of Geographical Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - James C Hower
- Center for Applied Energy Research, University of Kentucky, 2540 Research Park Drive, Lexington, Kentucky 40511, United States
- Department of Earth & Environmental Sciences, University of Kentucky, Lexington, Kentucky 40506, United States
| | - Mohammed Baalousha
- Center for Environmental Nanoscience and Risk, Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, Columbia, South Carolina 29201, United State
| | - Gehui Wang
- Key Laboratory of Geographic Information Science (Ministry of Education), School of Geographical Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Min Liu
- Key Laboratory of Geographic Information Science (Ministry of Education), School of Geographical Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Michael F Hochella
- Department of Geosciences, Virginia Tech, Blacksburg, Virginia 24061, United States
- Earth Systems Science Division, Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
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28
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Yin H, Ma J, Li Z, Li Y, Meng T, Tang Z. Polybrominated Diphenyl Ethers and Heavy Metals in a Regulated E-Waste Recycling Site, Eastern China: Implications for Risk Management. Molecules 2021; 26:2169. [PMID: 33918776 PMCID: PMC8069465 DOI: 10.3390/molecules26082169] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 03/30/2021] [Accepted: 04/03/2021] [Indexed: 11/17/2022] Open
Abstract
Serious pollution of multiple chemicals in irregulated e-waste recycling sites (IR-sites) were extensively investigated. However, little is known about the pollution in regulated sites. This study investigated the occurrence of 21 polybrominated diphenyl ethers (PBDEs) and 10 metals in a regulated site, in Eastern China. The concentrations of PBDEs and Cd, Cu, Pb, Sb, and Zn in soils and sediments were 1-4 and 1-3 orders of magnitude lower than those reported in the IR-sites, respectively. However, these were generally comparable to those in the urban and industrial areas. In general, a moderate pollution of PBDEs and metals was present in the vegetables in this area. A health risk assessment model was used to calculate human exposure to metals in soils. The summed non-carcinogenic risks of metals and PBDEs in the investigated soils were 1.59-3.27 and 0.25-0.51 for children and adults, respectively. Arsenic contributed to 47% of the total risks and As risks in 71.4% of the total soil samples exceeded the acceptable level. These results suggested that the pollution from e-waste recycling could be substantially decreased by the regulated activities, relative to poorly controlled operations, but arsenic pollution from the regulated cycling should be further controlled.
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Affiliation(s)
- Hongmin Yin
- College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China; (H.Y.); (T.M.)
| | - Jiayi Ma
- College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China; (J.M.); (Y.L.)
| | - Zhidong Li
- Cangzhou Ecology and Environment Bureau, Cangzhou 061000, China;
| | - Yonghong Li
- College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China; (J.M.); (Y.L.)
| | - Tong Meng
- College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China; (H.Y.); (T.M.)
| | - Zhenwu Tang
- College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China; (H.Y.); (T.M.)
- College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, China; (J.M.); (Y.L.)
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29
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Han Q, Liu Y, Feng X, Mao P, Sun A, Wang M, Wang M. Pollution effect assessment of industrial activities on potentially toxic metal distribution in windowsill dust and surface soil in central China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 759:144023. [PMID: 33340857 DOI: 10.1016/j.scitotenv.2020.144023] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 11/17/2020] [Accepted: 11/17/2020] [Indexed: 06/12/2023]
Abstract
Boundaries between industrial and urban areas in developing countries are not clearly defined, but pollution effect assessment of industrial activities on potentially toxic metal (PTM) distribution in these areas has rarely been investigated. Fifteen villages and eight communities surrounding the industrial areas from Anyang, China, were chosen as research objects in this study. A total of 78 windowsill dust and 78 surface soil samples were collected to determine the pollution levels, spatial distribution and risk indices of nine PTMs. PTM concentrations (expect Cr, Mn and Ni in surface soil) in the surveyed region were higher than the local soil background values. Amongst these PTMs, serious Cd and As pollution was discovered, and Cd and As in windowsill dust and surface soil exceeded the background value by 73.00 and 9.59, 9.74 and 10.92 times, respectively. Compared with the Igeo in surface soil, a large degree of variation in Igeo for the different PTMs was found in windowsill dust. The interpolated spatial distribution of dust Cr, Zn, Pb, Cd and soil Mn, Ni and Cu had a gradually decreasing pollution trend from the south to the north due to the prevailing wind directions in winter in the study area. Results of multivariate statistics reflected that industrial production and traffic emission affected the concentration of PTMs in windowsill dust and surface soil. The non-carcinogenic risks for children (soil: 12.4; dust: 19.2) were larger than those for adults (soil: 1.02; dust: 1.51). This finding suggested that industrial activities caused serious harm to the residents around industrial areas.
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Affiliation(s)
- Qiao Han
- College of Resource and Environment, Henan Polytechnic University, Jiaozuo, Henan 454003, China
| | - Yang Liu
- College of Resource and Environment, Henan Polytechnic University, Jiaozuo, Henan 454003, China
| | - Xixi Feng
- College of Resource and Environment, Henan Polytechnic University, Jiaozuo, Henan 454003, China
| | - Pan Mao
- College of Resource and Environment, Henan Polytechnic University, Jiaozuo, Henan 454003, China
| | - Ang Sun
- College of Resource and Environment, Henan Polytechnic University, Jiaozuo, Henan 454003, China
| | - Mingya Wang
- College of Resource and Environment, Henan Polytechnic University, Jiaozuo, Henan 454003, China
| | - Mingshi Wang
- College of Resource and Environment, Henan Polytechnic University, Jiaozuo, Henan 454003, China.
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