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Ibañez-Del Rivero C, Wheeler CA, Fry KL, Taylor MP. Portable X-ray fluorescence spectrometry: a cost-effective method for analysing trace metals in deposited dust. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024. [PMID: 38985328 DOI: 10.1039/d4ay00368c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/11/2024]
Abstract
For projects requiring extensive environmental sampling and rapid decision-making to identify trace metal contamination using dust wipes, the cost and time required for wet chemistry analysis can be prohibitive. Under such circumstances there is a need for a suitable screening method that is cost-effective, efficient, and portable. To address this need, this study investigated the utility of portable X-ray fluorescence (pXRF) for the analysis of trace metals in dust wipes. Here, 316 dust wipe samples from three different geographical settings co-located with mining and smelting operations were investigated for their trace metal loadings (μg m-2) of arsenic (As), chromium (Cr), copper (Cu), iron (Fe), manganese (Mn), nickel (Ni), lead (Pb), and zinc (Zn) using pXRF. Results collected using pXRF were compared against inductively coupled plasma mass spectrometry (ICP-MS) concentrations using matched dust wipes (n = 87) to assess reproducibility. A subset of dust wipes (n = 4) were subject to different pXRF analytical scenarios (ranging from 1 to 12 pXRF measurements) using a standardised test duration of 30 seconds to identify the most efficient number of tests for analytical precision. Conducting four pXRF tests on a single wipe (total exposure time of 120 seconds) returned comparable results to ICP-MS and was adopted for analysis of all samples. Results from dust wipes analysed with both ICP-MS and pXRF (n = 87) showed moderate to strong Spearman Rho correlations (rs = 0.489-0.956, p < 0.01) and linear regression coefficients of variation demonstrated good agreement between methods (R2 = 0.432-0.989, p < 0.05). Linear regression equations were used to correct pXRF data to the ICP-MS dust wipe data for samples analysed by both approaches, and applied to pXRF data that were not subject to ICP-MS analysis (n = 229). Application of the correction formula resulted in a substantial improvement of pXRF's accuracy and precision, confirming its effectiveness for assessing trace metals in dust wipes.
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Affiliation(s)
- Carlos Ibañez-Del Rivero
- School of Natural Sciences, Faculty of Science and Engineering, Macquarie University, Sydney, New South Wales, 2109, Australia.
| | - Cassandra A Wheeler
- School of Natural Sciences, Faculty of Science and Engineering, Macquarie University, Sydney, New South Wales, 2109, Australia.
| | - Kara L Fry
- School of Natural Sciences, Faculty of Science and Engineering, Macquarie University, Sydney, New South Wales, 2109, Australia.
- Environment Protection Authority Victoria, EPA Science, Centre for Applied Sciences, Ernest Jones Drive, Macleod, Melbourne, Victoria, 3085, Australia.
| | - Mark Patrick Taylor
- School of Natural Sciences, Faculty of Science and Engineering, Macquarie University, Sydney, New South Wales, 2109, Australia.
- Environment Protection Authority Victoria, EPA Science, Centre for Applied Sciences, Ernest Jones Drive, Macleod, Melbourne, Victoria, 3085, Australia.
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Ferguson A, Adelabu F, Solo-Gabriele H, Obeng-Gyasi E, Fayad-Martinez C, Gidley M, Honan J, Ogunseye OO, Beamer PI. Methodologies for the collection of parameters to estimate dust/soil ingestion for young children. Front Public Health 2024; 12:1357346. [PMID: 38989126 PMCID: PMC11234889 DOI: 10.3389/fpubh.2024.1357346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Accepted: 06/04/2024] [Indexed: 07/12/2024] Open
Abstract
Background Heavy metals, pesticides and a host of contaminants found in dust and soil pose a health risk to young children through ingestion. Dust/soil ingestion rates for young children can be estimated using micro-level activity time series (MLATS) as model inputs. MLATS allow for the generation of frequency and duration of children's contact activities, along with sequential contact patterns. Models using MLATS consider contact types, and transfer dynamics to assign mechanisms of contact and appropriate exposure factors for cumulative estimates of ingestion rates. Objective The objective of this study is to describe field implementation, data needs, advanced field collection, laboratory methodologies, and challenges for integrating into and updating a previously validated physical-stochastic MLATS-based model framework called the Child-Specific Aggregate Cumulative Human Exposure and Dose (CACHED) model. The manuscript focuses on describing the methods implemented in the current study. Methods This current multidisciplinary study (Dust Ingestion childRen sTudy [DIRT]) was implemented across three US regions: Tucson, Arizona; Miami, Florida and Greensboro, North Carolina. Four hundred and fifty participants were recruited between August 2021 to June 2023 to complete a 4-part household survey, of which 100 also participated in a field study. Discussion The field study focused on videotaping children's natural play using advanced unattended 360° cameras mounted for participants' tracking and ultimately conversion to MLATS. Additionally, children's hand rinses were collected before and after recording, along with indoor dust and outdoor soil, followed by advanced mass analysis. The gathered data will be used to quantify dust/soil ingestion by region, sociodemographic variables, age groups (from 6 months to 6 years), and other variables for indoor/outdoor settings within an adapted version of the CACHED model framework. Significance New innovative approaches for the estimation of dust/soil ingestion rates can potentially improve modeling and quantification of children's risks to contaminants from dust exposure.
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Affiliation(s)
- Alesia Ferguson
- Department of Built Environment, North Carolina Agricultural and Technical State University, Greensboro, NC, United States
| | - Foluke Adelabu
- Department of Built Environment, North Carolina Agricultural and Technical State University, Greensboro, NC, United States
| | - Helena Solo-Gabriele
- Department of Chemical, Environmental, and Materials Engineering, University of Miami, Coral Gables, FL, United States
| | - Emmanuel Obeng-Gyasi
- Department of Built Environment, North Carolina Agricultural and Technical State University, Greensboro, NC, United States
| | - Cristina Fayad-Martinez
- Department of Chemical, Environmental, and Materials Engineering, University of Miami, Coral Gables, FL, United States
| | - Maribeth Gidley
- Department of Chemical, Environmental, and Materials Engineering, University of Miami, Coral Gables, FL, United States
| | - Jenna Honan
- Department of Community, Environmental and Policy, Mel and Enid Zuckerman College of Public Health, University of Arizona, Tucson, AZ, United States
| | - Olusola O Ogunseye
- Department of Community, Environmental and Policy, Mel and Enid Zuckerman College of Public Health, University of Arizona, Tucson, AZ, United States
| | - Paloma I Beamer
- Department of Community, Environmental and Policy, Mel and Enid Zuckerman College of Public Health, University of Arizona, Tucson, AZ, United States
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Gillings MM, Ton R, Harris T, Swaddle JP, Taylor MP, Griffith SC. House Sparrows as Sentinels of Childhood Lead Exposure. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:10028-10040. [PMID: 38822757 DOI: 10.1021/acs.est.4c00946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2024]
Abstract
Our understanding of connections between human and animal health has advanced substantially since the canary was introduced as a sentinel of toxic conditions in coal mines. Nonetheless, the development of wildlife sentinels for monitoring human exposure to toxins has been limited. Here, we capitalized on a three-decade long child blood lead monitoring program to demonstrate that the globally ubiquitous and human commensal house sparrow (Passer domesticus) can be used as a sentinel of human health risks in urban environments impacted by lead mining. We showed that sparrows are a viable proxy for the measurement of blood lead levels in children at a neighborhood scale (0.28 km2). In support of the generalizability of this approach, the blood lead relationship established in our focal mining city enabled us to accurately predict elevated blood lead levels in children from another mining city using only sparrows from the second location. Using lead concentrations and lead isotopic compositions from environmental and biological matrices, we identified shared sources and pathways of lead exposure in sparrows and children, with strong links to contamination from local mining emissions. Our findings showed how human commensal species can be used to identify and predict human health risks over time and space.
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Affiliation(s)
- Max M Gillings
- School of Natural Sciences, Faculty of Science and Engineering, Macquarie University, Sydney, New South Wales 2109, Australia
| | - Riccardo Ton
- School of Natural Sciences, Faculty of Science and Engineering, Macquarie University, Sydney, New South Wales 2109, Australia
| | - Tiarne Harris
- School of Natural Sciences, Faculty of Science and Engineering, Macquarie University, Sydney, New South Wales 2109, Australia
| | - John P Swaddle
- Institute for Integrative Conservation, William & Mary, Williamsburg, Virginia 23185, United States
| | - Mark Patrick Taylor
- School of Natural Sciences, Faculty of Science and Engineering, Macquarie University, Sydney, New South Wales 2109, Australia
- Environment Protection Authority Victoria, Centre for Applied Sciences, Ernest Jones Drive, Melbourne, Victoria 3085, Australia
| | - Simon C Griffith
- School of Natural Sciences, Faculty of Science and Engineering, Macquarie University, Sydney, New South Wales 2109, Australia
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Chen L, Fang L, Yang X, Luo X, Qiu T, Zeng Y, Huang F, Dong F, White JC, Bolan N, Rinklebe J. Sources and human health risks associated with potentially toxic elements (PTEs) in urban dust: A global perspective. ENVIRONMENT INTERNATIONAL 2024; 187:108708. [PMID: 38703447 DOI: 10.1016/j.envint.2024.108708] [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: 12/05/2023] [Revised: 04/04/2024] [Accepted: 04/26/2024] [Indexed: 05/06/2024]
Abstract
Long-term exposure to urban dust containing potentially toxic elements (PTEs) poses detrimental impacts on human health. However, studies estimating human health risks in urban dusts from a global perspective are scarce. We evaluated data for twelve PTEs in urban dusts across 59 countries from 463 published articles, including their concentrations, input sources, and probabilistic risks to human health. We found that 34.1 and 60.3% of those investigated urban dusts have been heavily contaminated with As and Cd, respectively. The input of PTEs was significantly correlated with economic structure due to emissions of industrial activities and traffic emissions being the major sources. Based on the Monte Carlo simulation, we found that the mean hazard index below the safe threshold (1.0) could still cause non-negligible risks to human health. Arsenic and Cr were the major PTEs threatening human health, and relatively high risk levels were observed in cities in China, Korea, Chile, Malaysia, and Australia. Importantly, our analysis suggested that PTEs threaten the health of approximately 92 million adults and 280 million children worldwide. Overall, our study provides important foundational understanding and guidance for policy decision-making to reduce the potential risks associated with PTE exposure and to promote sustainable development of urban economies.
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Affiliation(s)
- Li Chen
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China; Key Laboratory of Green Utilization of Critical Non-metallic Mineral Resources, Ministry of Education, Wuhan University of Technology, Wuhan 430070, China
| | - Linchuan Fang
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China; Key Laboratory of Green Utilization of Critical Non-metallic Mineral Resources, Ministry of Education, Wuhan University of Technology, Wuhan 430070, China.
| | - Xing Yang
- College of Ecology and Environment, Hainan University, Haikou 570100, China
| | - Xiaosan Luo
- International Center for Ecology, Meteorology, and Environment, School of Applied Meteorology, Nanjing University of Information Science & Technology, Nanjing 210044, China
| | - Tianyi Qiu
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China; Key Laboratory of Green Utilization of Critical Non-metallic Mineral Resources, Ministry of Education, Wuhan University of Technology, Wuhan 430070, China
| | - Yi Zeng
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China
| | - Fengyu Huang
- College of Environment and Resource, Xichang University, Xichang 615000, China; College of Environment and Resources, Southwest University of Science & Technology, Mianyang 621010, China
| | - Faqin Dong
- College of Environment and Resources, Southwest University of Science & Technology, Mianyang 621010, China
| | - Jason C White
- The Connecticut Agricultural Experiment Station, New Haven, CT 06511, United States
| | - Nanthi Bolan
- UWA School of Agriculture and Environment, The University of Western Australia, Perth, Western Australia 6009, Australia
| | - Jörg Rinklebe
- School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water and Waste Management, Laboratory of Soil and Groundwater Management, University of Wuppertal, Pauluskirchstraße 7, Wuppertal 42285, Germany
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Lee PK, Yu S. Differentiating anthropogenic effects from natural metal(loid) levels in residential soil near a zinc smelter in South Korea. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:34922-34935. [PMID: 38713355 DOI: 10.1007/s11356-024-33554-w] [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: 01/10/2024] [Accepted: 04/29/2024] [Indexed: 05/08/2024]
Abstract
Metal(loid)s pose a significant hazard due to inherent toxicity. Individuals are particularly exposed to metal(loid)s in soil through direct or indirect contact. Identifying metal(loid) sources in soil is required for exposure mitigation to anthropogenic metal(loid)s, while metal(loid)s are natural constitutes of soil. Metal(loid) concentrations and Pb isotopes were determined in residential soil profiles impacted by a Zn smelter to distinguish the anthropogenic effect from natural levels. One hundred sixty-nine core soil samples were collected from depths down to 5.5 m below ground level at 19 sites and were divided into Zn-Cd-As- and As-contaminated groups based on the worrisome level (WL) of soil contamination. The Zn-Cd-As-contaminated group (n = 62) was observed at depths < 1 m, showed high Zn levels (mean of 1168 mg/kg) and Cd and As frequently exceeding WLs, and had low 206Pb/207Pb ratios close to the Zn smelter. In contrast, the As-contaminated group (n = 96) was observed at depths > 1 m, did not have other metals exceeding WLs, and showed a wide range of 206Pb/207Pb ratios far away from the Zn smelter. The results indicated that the pollution sources of Zn-Cd-As- and As-contaminated soils were fugitive dust emissions from smelter stacks and geology, respectively. The metal(loid)s in host rock set geochemical baselines in soil profiles, while smelting activities affected the upper layers over 50 years. This study demonstrated the effectiveness of utilizing the vertical distribution of metal(loid) concentrations and Pb isotopes in soil profiles for distinguishing between anthropogenic and geogenic origins, in combination with baseline assessment.
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Affiliation(s)
- Pyeong-Koo Lee
- Korea Institute of Geoscience and Mineral Resources, 124 Gwahak-Ro, Daejeon, 34132, Yuseong-Gu, Korea
| | - Soonyoung Yu
- Korea Institute of Geoscience and Mineral Resources, 124 Gwahak-Ro, Daejeon, 34132, Yuseong-Gu, Korea.
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Li C, Li M, Zeng J, Yuan S, Luo X, Wu C, Xue S. Migration and distribution characteristics of soil heavy metal(loid)s at a lead smelting site. J Environ Sci (China) 2024; 135:600-609. [PMID: 37778831 DOI: 10.1016/j.jes.2023.02.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 02/02/2023] [Accepted: 02/02/2023] [Indexed: 06/18/2023]
Abstract
Heavy metal(loid)s contamination is a constant issue at smelting sites. It is essential to investigate the spatial distribution and migration characteristics of heavy metal(loid)s in the soil for environmental management and remediation strategies of non-ferrous smelting sites. In this study, 203 soil samples from 57 sites were collected in a typical lead smelting site. The findings demonstrated that there were significant Pb, Zn, Cd, and As contamination in soil samples. The spatial distribution of heavy metal(loid)s showed strong spatial heterogeneity, the contaminated soil areas of Pb, As, Cd, and Zn were 99.5%, 98.9%, 85.3%, and 72.4%, respectively. Pb, Cd, and As contamination of the soil reached a depth of 5 m, which migrated from the surface to deep soil layers. The leaching contents of Zn, Pb, and As decreased obviously in 3-4 m soil layer, but the leaching content of Cd was still high, which indicated the high migration of Cd. With the increase of depth, the proportion of acid soluble fraction of heavy metal(loid)s decreased, and the residual fraction increased. The acid soluble fraction of Cd accounted for a higher proportion, and As mainly existed in reducible and residual fractions in soil. According to the calculation of the migration factor, the migration of heavy metal(loid)s in soils were ordered as Cd > Zn > Pb > As. The outcomes are advantageous for risk reduction and site remediation for non-ferrous metal smelting sites.
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Affiliation(s)
- Chuxuan Li
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Mu Li
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Jiaqing Zeng
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Shanxin Yuan
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Xinghua Luo
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Chuan Wu
- School of Metallurgy and Environment, Central South University, Changsha 410083, China; Chinese National Engineering Research Center for Control and Treatment of Heavy Metal Pollution, Central South University, Changsha 410083, China
| | - Shengguo Xue
- School of Metallurgy and Environment, Central South University, Changsha 410083, China; Chinese National Engineering Research Center for Control and Treatment of Heavy Metal Pollution, Central South University, Changsha 410083, China.
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Cui W, Mei Y, Liu S, Zhang X. Health risk assessment of heavy metal pollution and its sources in agricultural soils near Hongfeng Lake in the mining area of Guizhou Province, China. Front Public Health 2023; 11:1276925. [PMID: 38026406 PMCID: PMC10667904 DOI: 10.3389/fpubh.2023.1276925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Accepted: 10/23/2023] [Indexed: 12/01/2023] Open
Abstract
Background Accelerated modern industrial processes, extensive use of pesticides and fertilizers and remaining issues of wastewater irrigation have led to an increasingly severe composite pollution of heavy metals in arable land. Soil contamination can cause significant damage to ecological environments and human health. Mineral resource mining can result in varying degrees of heavy metal pollution in surrounding water systems and soil. As a plateau lake, Hongfeng Lake has a fragile watershed ecosystem. Coupled with the rapid development of the current socio-economy and the ongoing activities of mining, urbanization and agricultural development, the water and soil environment of the lake and arable land are facing serious heavy metal pollution. Therefore, the situation warrants attention. Methods This study focused on characterizing soil types and conducted sampling and laboratory testing on the farmland soil in Hongfeng Lake. The integrated Nemero comprehensive pollution assessment and potential ecological pollution assessment methods were used to evaluate the heavy metal pollution status. The APCS-MLR model was employed to explore the sources of heavy metal pollution. In addition, the human health risk model was used to analyze the association between heavy metal content in cultivated land and human health risks. Results The single-factor pollution of each element was ranked in descending order: Hg > As > Pb > Cr > Cd, with Hg being the main pollutant factor. The entire area was subjected to mild pollution according to the pollution index. Pollution source analysis indicated two main pollution sources. Hg, As, Pb and Cr pollution mainly resulted from Source 1 (industrial and natural activities), accounting for 71.99%, 51.57%, 67.39% and 68.36%, respectively. Cd pollution was mainly attributed to Source 2 (agricultural pollution source), contributing 84.12%. The health risk assessment model shows that heavy metals posed acceptable carcinogenic risks to humans rather than non-carcinogenic risks. As was the main non-carcinogenic risk factor, while Cr was the main carcinogenic risk factor, with higher risks in children than adults. Conclusion Our study identified the heavy metal pollution in farmland soil in Hongfeng Lake, evaluated and analyzed the pollution sources and identified the heavy metal elements in cultivated lands that have the greatest impact on human health risks. The aim of this study is to provide a scientific basis for soil heavy metal pollution control.
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Affiliation(s)
- Wengang Cui
- College of Geography and Environmental Sciences/College of Karst Science, Guizhou Normal University, Guiyang, Guizhou, China
- Key Laboratory of Mountainous Resources and Environmental Remote Sensing Applications, Guiyang, Guizhou Normal University, Guiyang, Guizhou, China
| | - Yan Mei
- College of Geography and Environmental Sciences/College of Karst Science, Guizhou Normal University, Guiyang, Guizhou, China
- Key Laboratory of Mountainous Resources and Environmental Remote Sensing Applications, Guiyang, Guizhou Normal University, Guiyang, Guizhou, China
| | - Suihua Liu
- College of Geography and Environmental Sciences/College of Karst Science, Guizhou Normal University, Guiyang, Guizhou, China
- Key Laboratory of Mountainous Resources and Environmental Remote Sensing Applications, Guiyang, Guizhou Normal University, Guiyang, Guizhou, China
| | - Xinding Zhang
- College of Geography and Environmental Sciences/College of Karst Science, Guizhou Normal University, Guiyang, Guizhou, China
- Key Laboratory of Mountainous Resources and Environmental Remote Sensing Applications, Guiyang, Guizhou Normal University, Guiyang, Guizhou, China
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Dai WJ, Li XD, Fu YC, Ding SY, Li QK, Zhao ZQ. Identification and contribution of potential sources to atmospheric lead pollution in a typical megacity: Insights from isotope analysis and the Bayesian mixing model. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 892:164567. [PMID: 37268120 DOI: 10.1016/j.scitotenv.2023.164567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 05/10/2023] [Accepted: 05/28/2023] [Indexed: 06/04/2023]
Abstract
Atmospheric particulate matter (PM) enriched with lead (Pb) has severe irreversible effects on human health. Therefore, identifying the contribution of Pb emission sources is essential for protecting the health of residents. Using the Pb isotopic tracer method, this study explored the seasonal characteristics and primary anthropogenic Pb sources for atmospheric PM in Tianjin in 2019. We calculated the contribution of Pb sources using the end-member and MixSIAR models. The results showed that Pb loaded in PM10 was more abundant in January than in July, and was strongly influenced by meteorological conditions and anthropogenic emissions. The primary Pb sources of the aerosol samples originated from coal combustion and vehicle and steel plant emissions, mainly originating from local Pb emission sources in Tianjin. The PM10-bond Pb in January was influenced by regional transportation and local sources. The MixSIAS model calculated the contribution of coal combustion as approximately 50 %. Compared with that in January, the contribution of coal combustion decreased by 9.6 % in July. Our results indicate that some of the benefits of phased-out leaded gasoline have been short-lived, whereas other industrial activities releasing Pb have increased. Furthermore, the results emphasise the practicability of the Pb isotope tracer source approach for identifying and distinguishing between different anthropogenic Pb inputs. Based on this study, scientific and effective air pollution prevention and control programs can be formulated to provide decision support for the guidance and control of air pollutant emissions.
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Affiliation(s)
- Wen-Jing Dai
- School of Earth System Science, Tianjin University, Tianjin 300072, China; School of Earth Science and Resource, Chang'an University, Xi'an 710054, China
| | - Xiao-Dong Li
- School of Earth System Science, Tianjin University, Tianjin 300072, China.
| | - Yu-Cong Fu
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shi-Yuan Ding
- School of Earth System Science, Tianjin University, Tianjin 300072, China
| | - Qin-Kai Li
- School of Earth System Science, Tianjin University, Tianjin 300072, China
| | - Zhi-Qi Zhao
- School of Earth Science and Resource, Chang'an University, Xi'an 710054, China.
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9
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Li H, Yao J, Min N, Sunahara G, Duran R. New insights on the effect of non-ferrous metal mining and smelting activities on microbial activity characteristics and bacterial community structure. JOURNAL OF HAZARDOUS MATERIALS 2023; 453:131301. [PMID: 37043852 DOI: 10.1016/j.jhazmat.2023.131301] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/23/2023] [Accepted: 03/24/2023] [Indexed: 05/03/2023]
Abstract
Mining and smelting activities have brought potentially serious heavy metal(loid)s pollution to their surrounding locale. However, studies on microbial metabolic activities, community structure, and adaptation in soils proximal to non-ferrous metal mining and smelting areas are still lacking. Here the effects of biotic and abiotic characteristics of soil taken from sites surrounding inactive and active non-ferrous metal mine smelting facilities on microbial enzyme activity, microcalorimetry, and high-throughput sequencing of 16S rRNA gene barcoding were studied. Data indicated that the soils were heavily polluted by toxic metal(loid)s, of which As and Cd were the main contaminants. Microbial acid phosphatase activity and microcalorimetric total heat value were sensitive metabolic indicators in the studied areas. Actinobacteriota had the highest relative abundance, followed by Proteobacteria, Chloroflexi, and Acidobacteria. Microbial metabolic activity, bacterial community structure and phenotype varied between inactive and active sites (p < 0.05). Such analyses indicated that electrical conductivity, total As, Cu, and Mn contents, and bioavailable As, Cu, Cd, and Mn concentrations were key factors determining microbial activities, bacterial community structure, and phenotypes. Knowledge of microbial adaptation to heavy metal stressors is important for better understanding the aerial transfer of fugitive heavy metal(loid)s (and possibly microbes) and for designing future strategies for improved soil bioremediation.
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Affiliation(s)
- Hao Li
- School of Water Resources and Environment, Research Center of Environmental Science and Engineering, China University of Geosciences (Beijing), 29 Xueyuan Road, Haidian District, 100083, Beijing, China
| | - Jun Yao
- School of Water Resources and Environment, Research Center of Environmental Science and Engineering, China University of Geosciences (Beijing), 29 Xueyuan Road, Haidian District, 100083, Beijing, China.
| | - Ning Min
- School of Water Resources and Environment, Research Center of Environmental Science and Engineering, China University of Geosciences (Beijing), 29 Xueyuan Road, Haidian District, 100083, Beijing, China
| | - Geoffrey Sunahara
- School of Water Resources and Environment, Research Center of Environmental Science and Engineering, China University of Geosciences (Beijing), 29 Xueyuan Road, Haidian District, 100083, Beijing, China; Department of Natural Resource Sciences, McGill University, 21111 Lakeshore Drive, Ste-Anne-de-Bellevue, Quebec H9X 3V9, Canada
| | - Robert Duran
- School of Water Resources and Environment, Research Center of Environmental Science and Engineering, China University of Geosciences (Beijing), 29 Xueyuan Road, Haidian District, 100083, Beijing, China; Universite de Pau et des Pays de l'Adour, E2S-UPPA, IPREM 5254, BP 1155, 64013 Pau Cedex, France
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10
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Su Y, Peng S, Xu G, Gao Q, Chen J, Lu X, Duan B. Effect of cornstalk biochar on phytoremediation of Pb-contaminated soil by females and males of Populus deltoides (Salicaceae). PHYSIOLOGIA PLANTARUM 2023; 175:e13986. [PMID: 37615999 DOI: 10.1111/ppl.13986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 07/14/2023] [Accepted: 07/24/2023] [Indexed: 08/25/2023]
Abstract
Soil pollution with lead (Pb) has become a serious global concern, adversely affecting the forest ecosystem. This study was conducted to investigate the effects of corn straw on the remediation efficiency of Pb-contaminated soil using Populus deltoides. Female and male P. deltoides cuttings were subjected to soil spiked with 900 mg kg-1 Pb and amended with 5% (v/v) corn straw biochar for 90 days. Under Pb stress, the addition of biochar significantly increased the total biomass accumulation by 29% in females and 26% in males. However, without the addition of biochar, the biomass accumulation was significantly reduced by 11% in females and 3% in males under Pb stress. Females showed a higher uptake and accumulation of Pb in roots and leaves, while males accumulated more Pb in roots and stems and exhibited an increased anti-oxidative capacity. Biochar addition alleviated Pb toxicity in both male and female P. deltoides by immobilizing Pb ion in the soil, reducing Pb uptake and translocation, promoting nutrient uptake, and improving the diversity and stability of the soil bacteria community. Under Pb stress, the relative abundances of metal-resistance bacteria significantly increased, such as the abundance of Bacteroidetes in females and the abundances of Actinobacteria, Firmicutes, and Planctomycetes in males. In brief, the males under biochar addition exhibited promising potential as candidates for phytoremediation of Pb-contaminated soil. This study provides new insights into mechanisms underlying sexually differential responses to Pb stress in the presence of biochar amendment.
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Affiliation(s)
- Yan Su
- Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Shuming Peng
- State Environmental Protection Key Laboratory of Synergetic Control and Joint Remediation for Soil & Water Pollution, College of Environment and Ecology, Chengdu University of Technology, Chengdu, Sichuan, China
| | - Gang Xu
- School of Life Sciences and Engineering, Southwest University of Science and Technology, Mianyang, China
| | - Qiao Gao
- Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Juan Chen
- Engineering Research Center of Chuanxibei RHS Construction at Mianyang Teachers' College of Sichuan Province, Mianyang Teachers' College, Mianyang, China
| | - Xuyang Lu
- Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, China
| | - Baoli Duan
- Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, China
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11
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Sun Q, Zhang Y, Ming C, Wang J, Zhang Y. Amended compost alleviated the stress of heavy metals to pakchoi plants and affected the distribution of heavy metals in soil-plant system. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 336:117674. [PMID: 36967696 DOI: 10.1016/j.jenvman.2023.117674] [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: 11/21/2022] [Revised: 02/13/2023] [Accepted: 03/02/2023] [Indexed: 06/18/2023]
Abstract
With the development of the social economy, soil heavy metal pollution has become a common worldwide issue. Therefore, the remediation of soil heavy metal pollution is imminent. This study aimed to investigate the effect of amended compost on reducing heavy metal bioavailability in soil and relieving heavy metals stress on plants under Cu and Zn stress in a pot experiment. To model the restoration of heavy metal-polluted farming soil, conventional compost (CKw), activated carbon compost (ACw), modified biochar compost (BCw) and rhamnolipid compost (RLw) were utilized. The results showed that the application of amended compost could promote the growth and quality of pakchoi and enhance the stress ability of malondialdehyde and antioxidant enzymes to heavy metals. The distribution of Cu and Zn in different subcellular parts of pakchoi was also affected. The application of amended compost significantly reduced the heavy metals content in the shoot of pakchoi, among which the content of Cu and Zn in the shoot of pakchoi in RLw was significantly decreased by 57.29% and 60.07%, respectively. Our results can provide a new understanding for efficient remediation of contaminated farmland soil by multiple heavy metals.
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Affiliation(s)
- Qinghong Sun
- College of Resources and Environment, South China Agricultural University, Guangzhou 510642, PR China; School of Resource and Environment, Northeast Agricultural University, Harbin, China
| | - Yuxin Zhang
- School of Resource and Environment, Northeast Agricultural University, Harbin, China
| | - Chenshu Ming
- School of Resource and Environment, Northeast Agricultural University, Harbin, China
| | - Jianmin Wang
- School of Resource and Environment, Northeast Agricultural University, Harbin, China
| | - Ying Zhang
- School of Resource and Environment, Northeast Agricultural University, Harbin, China.
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12
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Wu J, Ge Y, Li J, Lai X, Chen R. A PMF-SSD based approach for the source apportionment and source-specific ecological risk assessment of Le'an river in Jiangxi Province, China. ENVIRONMENTAL RESEARCH 2023; 219:115027. [PMID: 36502912 DOI: 10.1016/j.envres.2022.115027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/26/2022] [Accepted: 12/07/2022] [Indexed: 06/17/2023]
Abstract
Identifying the contamination characteristics of trace metals in river and targeting their corresponding potential contamination sources and source-specific ecological risk are of very importance for putting forward effective river environment protection strategies. Here, a detailed investigation was conducted to recognize the contamination and ecological risk characteristics of trace metals in Le'an River. To attain this objective, a PMF-SSD model (Positive Matrix Factorization-Species Sensitivity Distribution) was proposed to evaluate the ecological risk of trace metals in Le'an River. The positive matrix factorization (PMF) was employed to identify the potential source of trace metals in surface water and their corresponding contributions. The ecological risks of the sources were quantitatively calculated by PMF-SSD. In addition, the spatial dissimilarity analysis of the source contribution distributions was also conducted in this study. Results showed that the water environment in Jiangxi were considerably contaminated by trace metals (Cd, Cr, Co, Al, Mn, Cu, Zn and Ni). The concentrations of these trace metals in surface water demonstrated significant spatial variations and the ecological risk lay in high level. Mining activities were identified as the main anthropogenic sources, which should to be strictly regulated.
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Affiliation(s)
- Jin Wu
- College of Architecture and Civil Engineering, Beijing University of Technology, Beijing, 100124, China.
| | - Yinxin Ge
- College of Architecture and Civil Engineering, Beijing University of Technology, Beijing, 100124, China
| | - Jiao Li
- Technical Centre for Soil, Agricultural and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing, 100012, China.
| | - Xiaoying Lai
- College of Management and Economics, Tianjin University, No. 92 Weijin Road, Nankai District, Tianjin, 300072, China
| | - Ruihui Chen
- Beijing Water Science and Technology Institute, Beijing, 100048, China.
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13
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Liu X, Yin H, Liu H, Cai Y, Qi X, Dang Z. Multicomponent adsorption of heavy metals onto biogenic hydroxyapatite: Surface functional groups and inorganic mineral facilitating stable adsorption of Pb(Ⅱ). JOURNAL OF HAZARDOUS MATERIALS 2023; 443:130167. [PMID: 36270188 DOI: 10.1016/j.jhazmat.2022.130167] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 09/29/2022] [Accepted: 10/08/2022] [Indexed: 06/16/2023]
Abstract
Due to the coexistence of various heavy metals in the contaminated environment, it is essential to comprehensively study the multicomponent adsorption of heavy metals in order to tackle these combined pollutants. Herein, the adsorption processes of Pb(Ⅱ), Cu(Ⅱ) and Cd(Ⅱ) by biogenic hydroxyapatite (BHAp) were investigated in single and multicomponent systems. The maximum adsorption capacity for Pb(Ⅱ), Cu(Ⅱ) and Cd(Ⅱ) by BHAp in single system reached 311.16, 82.05 and 92.54 mg g-1, respectively, while adsorption capacity for Cu(Ⅱ) and Cd(Ⅱ) in multicomponent system decreased more obviously than that of Pb(Ⅱ). Furthermore, the stability of Cu(Ⅱ) and Cd(Ⅱ) adsorbed on BHAp was indeed influenced in multicomponent system. By means of the characterization analysis, it was found that ion exchange was more instrumental in the adsorption processes of Cu(Ⅱ) and Cd(Ⅱ) in single system than in multicomponent system. Significantly, it was observed that the proportion of generally stable Pb(II) adsorbed on BHAp exceeded 95% in both single and multicomponent systems. This result might be due to the in-site growth of stable crystals of PbxCa10-x(PO4)6(OH)2, which was synergistically induced by surface functional groups and inorganic mineral of BHAp, and was unaffected by the coexistence of Cu(Ⅱ) and Cd(Ⅱ).
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Affiliation(s)
- Xiaofei Liu
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
| | - Hua Yin
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China; Key Laboratory of Ministry of Education on Pollution Control and Ecosystem Restoration in Industry Clusters, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, Guangzhou 510006, China.
| | - Hang Liu
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
| | - Yuhao Cai
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
| | - Xin Qi
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
| | - Zhi Dang
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China; Key Laboratory of Ministry of Education on Pollution Control and Ecosystem Restoration in Industry Clusters, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, Guangzhou 510006, China
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14
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More SJ, Bampidis V, Benford D, Bragard C, Halldorsson TI, Hernández‐Jerez AF, Bennekou SH, Koutsoumanis K, Lambré C, Machera K, Mullins E, Nielsen SS, Schlatter JR, Schrenk D, Turck D, Younes M, Boon P, Ferns GAA, Lindtner O, Smolders E, Wilks M, Bastaki M, de Sesmaisons‐Lecarré A, Ferreira L, Greco L, Kass GEN, Riolo F, Leblanc J. Re-evaluation of the existing health-based guidance values for copper and exposure assessment from all sources. EFSA J 2023; 21:e07728. [PMID: 36694841 PMCID: PMC9843535 DOI: 10.2903/j.efsa.2023.7728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Copper is an essential micronutrient and also a regulated product used in organic and in conventional farming pest management. Both deficiency and excessive exposure to copper can have adverse health effects. In this Scientific Opinion, the EFSA 2021 harmonised approach for establishing health-based guidance values (HBGVs) for substances that are regulated products and also nutrients was used to resolve the divergent existing HBGVs for copper. The tightly regulated homeostasis prevents toxicity manifestation in the short term, but the development of chronic copper toxicity is dependent on copper homeostasis and its tissue retention. Evidence from Wilson disease suggests that hepatic retention is indicative of potential future and possibly sudden onset of copper toxicity under conditions of continuous intake. Hence, emphasis was placed on copper retention as an early marker of potential adverse effects. The relationships between (a) chronic copper exposure and its retention in the body, particularly the liver, and (b) hepatic copper concentrations and evidence of toxicity were examined. The Scientific Committee (SC) concludes that no retention of copper is expected to occur with intake of 5 mg/day and established an Acceptable Daily Intake (ADI) of 0.07 mg/kg bw. A refined dietary exposure assessment was performed, assessing contribution from dietary and non-dietary sources. Background copper levels are a significant source of copper. The contribution of copper from its use as plant protection product (PPP), food and feed additives or fertilisers is negligible. The use of copper in fertilisers or PPPs contributes to copper accumulation in soil. Infant formula and follow-on formula are important contributors to dietary exposure of copper in infants and toddlers. Contribution from non-oral sources is negligible. Dietary exposure to total copper does not exceed the HBGV in adolescents, adults, elderly and the very elderly. Neither hepatic copper retention nor adverse effects are expected to occur from the estimated copper exposure in children due to higher nutrient requirements related to growth.
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15
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Qi M, Wu Y, Zhang S, Li G, An T. Pollution Profiles, Source Identification and Health Risk Assessment of Heavy Metals in Soil near a Non-Ferrous Metal Smelting Plant. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:1004. [PMID: 36673760 PMCID: PMC9858899 DOI: 10.3390/ijerph20021004] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 01/03/2023] [Accepted: 01/04/2023] [Indexed: 06/17/2023]
Abstract
Heavy metal pollution related to non-ferrous metal smelting may pose a significant threat to human health. This study analyzed 58 surface soils collected from a representative non-ferrous metal smelting area to screen potentially hazardous heavy metals and evaluate their health risk in the studied area. The findings demonstrated that human activity had contributed to the pollution degrees of Cu, Cd, As, Zn, and Pb in the surrounding area of a non-ferrous metal smelting plant (NMSP). Cu, Cd, As, Zn, Pb, Ni, and Co pollution within the NMSP was serious. Combining the spatial distribution and Spearman correlations with principal component analysis (PCA), the primary sources of Cd, As, Pb, and Zn in surrounding areas were related to non-ferrous metal smelting and transportation activities. High non-cancer (THI = 4.76) and cancer risks (TCR = 2.99 × 10-4) were found for adults in the NMSP. Moreover, heavy metals in the surrounding areas posed a potential cancer risk to children (TCR = 3.62 × 10-6) and adults (TCR = 1.27 × 10-5). The significant contributions of As, Pb, and Cd to health risks requires special attention. The construction of a heavy metal pollution management system will benefit from the current study for the non-ferrous metal smelting industry.
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Affiliation(s)
- Mengdie Qi
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China
- Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Guangdong Technology Research Center for Photocatalytic Technology Integration and Equipment Engineering, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Yingjun Wu
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China
- Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Guangdong Technology Research Center for Photocatalytic Technology Integration and Equipment Engineering, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Shu Zhang
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China
- Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Guangdong Technology Research Center for Photocatalytic Technology Integration and Equipment Engineering, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Guiying Li
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China
- Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Guangdong Technology Research Center for Photocatalytic Technology Integration and Equipment Engineering, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Taicheng An
- Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China
- Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Guangdong Technology Research Center for Photocatalytic Technology Integration and Equipment Engineering, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
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16
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Rahman SU, Yasin G, Nawaz MF, Cheng H, Azhar MF, Riaz L, Javed A, Lu Y. Evaluation of heavy metal phytoremediation potential of six tree species of Faisalabad city of Pakistan during summer and winter seasons. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 320:115801. [PMID: 35930882 DOI: 10.1016/j.jenvman.2022.115801] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Revised: 06/16/2022] [Accepted: 07/17/2022] [Indexed: 06/15/2023]
Abstract
Environmental pollution induced by heavy metals has been identified as a leading threat in the modern era. Woody tree species may play a crucial role in the removal of heavy metals from soil and air, thus minimizing pollution potential. The present study was designed to evaluate the phytoremediation potential of six tree species; Azadirachta indica, Cassia fistula, Conocarpus erectus, Eucalyptus camaldulensis, Morus alba, and Populus deltoids, respectively, in the industrial and residential areas of Faisalabad based on the concentrations of lead (Pb), zinc (Zn), cadmium (Cd), and copper (Cu) in their leaves and barks in winter (2018) and summer (2019) seasons. The seasonal contents of heavy metals in both the leaves and barks of these trees decreased in the order of: Zn > Pb > Cu > Cd at both study sites. The highest heavy metal contents were recorded in the leaves and barks of trees grown in the industrial areas as compared to residential areas, with leaves and barks having higher contents of heavy metals in the summer than winter. The tree species exhibited significantly different capacity for heavy metal accumulation, with the accumulation of Cd decreased in the order of: E. camaldulensis > M. alba > C. erectus > A. indica > P. deltoids > C. fistula, and while the order varied for different heavy metals. Overall, M. alba, E. camaldulensis and A. indica performed well in accumulating the targeted heavy metals from the ambient environment. Among the six tree species grown commonly in Faisalabad city, M. alba, E. camaldulensis, and A. indica are recommended for the industrial and residential areas due to their phytoremediation capacity for heavy metals.
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Affiliation(s)
- Shafeeq Ur Rahman
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan, Guangdong, 523808, China; MOE Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China.
| | - Ghulam Yasin
- Department of Forestry and Range Management, Bahauddin Zakriya University Multan, Pakistan.
| | - Muhammad Farrakh Nawaz
- Department of Forestry and Range Management, University of Agriculture, Faisalabad, Pakistan.
| | - Hefa Cheng
- MOE Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China.
| | - Muhammad Farooq Azhar
- Department of Forestry and Range Management, Bahauddin Zakriya University Multan, Pakistan.
| | - Luqman Riaz
- Department of Environmental Sciences, University of Narowal, Narowal, 51750, Punjab, 453007, Pakistan.
| | - Atif Javed
- Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, Pakistan.
| | - Yanlinag Lu
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan, Guangdong, 523808, China.
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17
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George SE, James J, Devereux R, Wan Y, Diamond GL, Bradham KD, Scheckel KG, Thomas DJ. Ingestion of remediated lead-contaminated soils affects the fecal microbiome of mice. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 837:155797. [PMID: 35561906 PMCID: PMC9830667 DOI: 10.1016/j.scitotenv.2022.155797] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 04/12/2022] [Accepted: 05/05/2022] [Indexed: 05/08/2023]
Abstract
The relationship between ingestion of diets amended with a Pb-contaminated soil and the composition of the fecal microbiome was examined in a mouse model. Mice consumed diets amended with a Pb-contaminated soil in its native (untreated) state or after treatment for remediation with phosphoric acid or triple superphosphate alone or in combination with iron-waste material or biosolids compost. Subacute dietary exposure of mice receiving treated soil resulted in modulation of the fecal intestinal flora, which coincided with reduced relative Pb bioavailability in the bone, blood and kidney and differences in Pb speciation compared to untreated soil. Shifts in the relative abundance of several phyla including Verrucomicrobia, Tenericutes, Firmicutes, Proteobacteria, and TM7 (Candidatus Saccharibacteria) were observed. Because the phyla persist in the presence of Pb, it is probable that they are resistant to Pb. This may enable members of the phyla to bind and limit Pb uptake in the intestine. Families Ruminococcaceae, Lachnospiraceae, Erysipelotrichaceae, Verrucomicrobiaceae, Prevotellaceae, Lactobacilaceae, and Bacteroidaceae, which have been linked to health or disease, also were modulated. This study is the first to explore the relationship between the murine fecal microbiome and ingested Pb contaminated soils treated with different remediation options designed to reduce bioavailability. Identifying commonalities in the microbiome that are correlated with more positive health outcomes may serve as biomarkers to assist in the selection of remediation approaches that are more effective and pose less risk.
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Affiliation(s)
- S Elizabeth George
- Center for Environmental Measurement & Modeling, Gulf Ecosystem Measurement & Modeling Division, U.S. Environmental Protection Agency, Office of Research & Development, Gulf Breeze, FL 32561, United States.
| | - Joseph James
- Center for Environmental Measurement & Modeling, Gulf Ecosystem Measurement & Modeling Division, U.S. Environmental Protection Agency, Office of Research & Development, Gulf Breeze, FL 32561, United States
| | - Richard Devereux
- Center for Environmental Measurement & Modeling, Gulf Ecosystem Measurement & Modeling Division, U.S. Environmental Protection Agency, Office of Research & Development, Gulf Breeze, FL 32561, United States
| | - Yongshan Wan
- Center for Environmental Measurement & Modeling, Gulf Ecosystem Measurement & Modeling Division, U.S. Environmental Protection Agency, Office of Research & Development, Gulf Breeze, FL 32561, United States
| | - Gary L Diamond
- SRC, Inc., North Syracuse, New York 13212, United States
| | - Karen D Bradham
- Center for Environmental Measurement & Modeling, Watershed & Ecosystem Characterization Division, U.S. Environmental Protection Agency, Office of Research & Development, Research Triangle Park, NC 27711, United States
| | - Kirk G Scheckel
- Center for Environmental Solutions and Emergency Response, Land Remediation & Technology Division, U.S. Environmental Protection Agency, Office of Research & Development, Cincinnati, OH 45224, United States
| | - David J Thomas
- Center for Computational Toxicology & Exposure, Chemical Characterization & Exposure Division, U.S. Environmental Protection Agency, Office of Research & Development, Research Triangle Park, NC 27711, United States
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18
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Wei T, Li X, Li H, Gao H, Guo J, Li Y, Ren X, Hua L, Jia H. The potential effectiveness of mixed bacteria-loaded biochar/activated carbon to remediate Cd, Pb co-contaminated soil and improve the performance of pakchoi plants. JOURNAL OF HAZARDOUS MATERIALS 2022; 435:129006. [PMID: 35489314 DOI: 10.1016/j.jhazmat.2022.129006] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 04/08/2022] [Accepted: 04/21/2022] [Indexed: 06/14/2023]
Abstract
Cadmium (Cd) and lead (Pb) are toxic heavy metals that cause severe soil pollution and pose health risks to humans. It is urgent to develop feasible strategies for Pb and Cd remediation. In this study, a bacteria consortium (Enterobacter asburiae G3, Enterobacter tabaci I12 and Klebsiella variicola J2 in a 1:3:3 proportion) with optimal Cd, Pb adsorption ability was constructed and immobilized on biochar (BC)/activated carbon (AC) via physisorption and sodium alginate encapsulation. The effects of mixed bacteria-loaded BC/AC on Cd and Pb remediation were investigated. The results indicated that their application reduced the DTPA-extractable Cd, Pb in soil by 22.05%-55.84% and 31.64%-48.13%, respectively. The residual Pb, Cd were increased while the exchangeable fractions were decreased. Soil urease, catalase and phosphatase activities were enhanced and soil bacterial community was improved, indicating a soil quality improvement. Consequently, the biomass of pakchoi plants was significantly increased. Cd and Pb in the shoots of pakchoi plants were decreased by 28.68%-51.01% and 24.18%-52.87%, respectively. Collectively, the bacteria-loaded BC/AC showed superior performance than free bacteria, BC and AC alone. Our study may provide a better understanding of the development of green and sustainable materials for remediation of heavy metal by the combination of BC/AC and functional bacteria.
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Affiliation(s)
- Ting Wei
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China.
| | - Xian Li
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China
| | - Hong Li
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China
| | - Han Gao
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China
| | - Junkang Guo
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China
| | - Yongtao Li
- College of Resources and Environment, South China Agricultural University, Guangzhou 510642, PR China
| | - Xinhao Ren
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China
| | - Li Hua
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China
| | - Honglei Jia
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China
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19
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Liu Y, Liu S, Zhao W, Xia C, Wu M, Wang Q, Wang Z, Jiang Y, Zuza AV, Tian X. Assessment of heavy metals should be performed before the development of the selenium-rich soil: A case study in China. ENVIRONMENTAL RESEARCH 2022; 210:112990. [PMID: 35217010 DOI: 10.1016/j.envres.2022.112990] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 01/14/2022] [Accepted: 02/18/2022] [Indexed: 06/14/2023]
Abstract
The use of selenium (Se)-rich soils in China is an effective method for rural revitalization, but assessment of heavy metals is essential prior to the development of Se-rich soils. This study was focused on the Jiangjin district, a typical Se-rich area located in Sichuan Basin of China, to investigate contamination, influencing factors, and sources of As, Cr, Cu, Cd, Ni, Pb, Sb, and Zn based on 156 topsoil samples. This study analyzed and compared the enrichment factor (EF), Nemerow index (PN), geographical information system (GIS), and positive matrix factorization (PMF). Results demonstrate that the average values of As, Cu, Cd, Sb, and Zn in topsoil were higher than the soil background values of western Chongqing by approximately 1.75, 1.11, 1.27, 1.71, and 2.58 times, respectively, indicating that some heavy metals have been enriched in the soils. The polluted areas of As, Cu, Cd, and Zn in topsoil were mainly distributed in the northern and central Jiangjin district, whereas high-Sb soils were located in the southeast. The Cr, Cu, Cd, Pb, and Sb were concentrated in Se-rich soils, indicating that heavy metals pollution should be carefully considered for the utilization of Se-rich soils. Four potential sources of heavy metals were found in this study area: 1) the parent materials (Cr, Ni, Cu); 2) industrial activities with high coal consumption (As); 3) mechanical and chemical industrial activities (Zn, Sb); and 4) transportation and agricultural activities (Pb, Cd). These observations provide a scientific basis for the development, utilization, and protection of Se-rich soil resources.
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Affiliation(s)
- Yonglin Liu
- The Key Laboratory of GIS Application Research, Chongqing Normal University, Chongqing, 401331, China; Geography and Tourism College, Chongqing Normal University, Chongqing, 401331, China
| | - Shuling Liu
- The Key Laboratory of GIS Application Research, Chongqing Normal University, Chongqing, 401331, China; Geography and Tourism College, Chongqing Normal University, Chongqing, 401331, China
| | - Wei Zhao
- Shandong Institute of Geological Sciences, Jinan, 250013, China; Key Laboratory of Gold Mineralization Processes and Resource Utilization, MNR, Jinan, 250013, China; Shandong Provincial Key Laboratory of Metallogenic Geological Process and Resource Utilization, Jinan, 250013, China
| | - Chuanbo Xia
- Shandong Institute of Geological Sciences, Jinan, 250013, China; Key Laboratory of Gold Mineralization Processes and Resource Utilization, MNR, Jinan, 250013, China; Shandong Provincial Key Laboratory of Metallogenic Geological Process and Resource Utilization, Jinan, 250013, China
| | - Mei Wu
- The Key Laboratory of GIS Application Research, Chongqing Normal University, Chongqing, 401331, China; Geography and Tourism College, Chongqing Normal University, Chongqing, 401331, China
| | - Qing Wang
- Shandong Institute of Geological Sciences, Jinan, 250013, China; Key Laboratory of Gold Mineralization Processes and Resource Utilization, MNR, Jinan, 250013, China; Shandong Provincial Key Laboratory of Metallogenic Geological Process and Resource Utilization, Jinan, 250013, China
| | - Zhiming Wang
- Shandong Institute of Geological Sciences, Jinan, 250013, China; Key Laboratory of Gold Mineralization Processes and Resource Utilization, MNR, Jinan, 250013, China; Shandong Provincial Key Laboratory of Metallogenic Geological Process and Resource Utilization, Jinan, 250013, China
| | - Yun Jiang
- Shandong Institute of Geological Sciences, Jinan, 250013, China; Key Laboratory of Gold Mineralization Processes and Resource Utilization, MNR, Jinan, 250013, China; Shandong Provincial Key Laboratory of Metallogenic Geological Process and Resource Utilization, Jinan, 250013, China
| | - Andrew V Zuza
- Nevada Bureau of Mines and Geology, University of Nevada, Reno, NV, 89557, USA
| | - Xinglei Tian
- Shandong Institute of Geological Sciences, Jinan, 250013, China; Key Laboratory of Gold Mineralization Processes and Resource Utilization, MNR, Jinan, 250013, China; Shandong Provincial Key Laboratory of Metallogenic Geological Process and Resource Utilization, Jinan, 250013, China.
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20
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Wang H, Zhu R, Dong K, Zhang S, Zhao R, Jiang Z, Lan X. An experimental comparison: Horizontal evaluation of valuable metal extraction and arsenic emission characteristics of tailings from different copper smelting slag recovery processes. JOURNAL OF HAZARDOUS MATERIALS 2022; 430:128493. [PMID: 35739674 DOI: 10.1016/j.jhazmat.2022.128493] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 02/09/2022] [Accepted: 02/12/2022] [Indexed: 06/15/2023]
Abstract
This study comprehensively investigated arsenic's enrichment, distribution, and characteristics in tailings. XRD and SEM-EDS characterized the phase and morphology of tailings from various smelting processes. At the same time, the embedding characteristics of arsenic in the ore phase were analyzed by EPMA. The differences between arsenic's leading ore phase carriers in different recovery processes were found. It was discussed that this phenomenon would be related to the element-binding ability and the precipitation priority of the ore phase. The occurrence state of arsenic was discussed by sequential chemical extraction experiments. The proportion of leachable arsenic is higher than the low-risk limit, whatever which smelting method is adopted, which leads to high environmental risk. In the experiment of comparing the leaching toxicity of tailings by different leaching methods, the arsenic concentration in the leaching solution of tailings recovered by the flotation method exceeds the specified safety range. Although the tailings after reduction smelting did not show high leaching toxicity, a large number of accumulations also would not represent absolute safety.
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Affiliation(s)
- Hongyang Wang
- University of Science and Technology Beijing, School of Metallurgical and Ecological Engineering, Beijing 100083, China; Beijing Key Laboratory for special melting and preparation of high-end metal materials, Beijing 100083, China
| | - Rong Zhu
- University of Science and Technology Beijing, School of Metallurgical and Ecological Engineering, Beijing 100083, China; Beijing Key Laboratory for special melting and preparation of high-end metal materials, Beijing 100083, China
| | - Kai Dong
- University of Science and Technology Beijing, School of Metallurgical and Ecological Engineering, Beijing 100083, China; Beijing Key Laboratory for special melting and preparation of high-end metal materials, Beijing 100083, China.
| | - Siqi Zhang
- Beijing Key Laboratory for special melting and preparation of high-end metal materials, Beijing 100083, China; University of Science and Technology Beijing, School of Civil and Resources Engineering, Beijing 100083, China
| | - Ruimin Zhao
- University of Science and Technology Beijing, School of Metallurgical and Ecological Engineering, Beijing 100083, China; Beijing Key Laboratory for special melting and preparation of high-end metal materials, Beijing 100083, China
| | - Zhenqiang Jiang
- University of Science and Technology Beijing, School of Metallurgical and Ecological Engineering, Beijing 100083, China; Beijing Key Laboratory for special melting and preparation of high-end metal materials, Beijing 100083, China
| | - Xinyi Lan
- Beijing Key Laboratory for special melting and preparation of high-end metal materials, Beijing 100083, China; University of Science and Technology Beijing, School of Automation and Electrical Engineering, Beijing 100083, China
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21
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Han I, Whitworth KW, Christensen B, Afshar M, An Han H, Rammah A, Oluwadairo T, Symanski E. Heavy metal pollution of soils and risk assessment in Houston, Texas following Hurricane Harvey. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 296:118717. [PMID: 34933061 PMCID: PMC8883480 DOI: 10.1016/j.envpol.2021.118717] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Revised: 11/30/2021] [Accepted: 12/17/2021] [Indexed: 05/02/2023]
Abstract
In August 2017, after Hurricane Harvey made landfall, almost 52 inches of rain fell during a three-day period along the Gulf Coast Region of Texas, including Harris County, where Houston is located. Harris County was heavily impacted with over 177,000 homes and buildings (approximately 12 percent of all buildings in the county) experiencing flooding. The objective of this study was to measure 13 heavy metals in soil in residential areas and to assess cancer and non-cancer risk for children and adults after floodwaters receded. Between September and November 2017, we collected 174 surface soil samples in 10 communities, which were classified as "High Environmental Impact" or "Low Environmental Impact" communities, based on a composite metric of six environmental parameters. A second campaign was conducted between May 2019 and July 2019 when additional 204 soil samples were collected. Concentrations of metals at both sampling campaigns were higher in High Environmental Impact communities than in Low Environmental Impact communities and there was little change in metal levels between the two sampling periods. The Pollution Indices of lead (Pb), zinc, copper, nickel, and manganese in High Environmental Impact communities were significantly higher than those in Low Environmental Impact communities. Further, cancer risk estimates in three communities for arsenic through soil ingestion were greater than 1 in 1,000,000. Although average soil Pb was lower than the benchmark of the United States Environmental Protection Agency, the hazard indices for non-cancer outcomes in three communities, mostly attributed to Pb, were greater than 1. Health risk estimates for children living in these communities were greater than those for adults.
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Affiliation(s)
- Inkyu Han
- Department of Epidemiology and Biostatistics, Temple University College of Public Health, Philadelphia, PA, 19122, USA
| | - Kristina W Whitworth
- Center for Precision Environmental Health, Baylor College of Medicine, Houston, TX, 77030, USA; Department of Medicine, Section of Epidemiology and Population Sciences, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Brian Christensen
- Department of Epidemiology, Human Genetics, and Environmental Sciences, University of Texas Health Science Center (UTHealth) at Houston School of Public Health, Houston, TX, 77030, USA; Centers for Disease Control and Prevention, National Institute of Occupational Safety and Health Cincinnati, OH, 45213, USA
| | - Masoud Afshar
- Department of Epidemiology, Human Genetics, and Environmental Sciences, University of Texas Health Science Center (UTHealth) at Houston School of Public Health, Houston, TX, 77030, USA
| | - Heyreoun An Han
- Center for Precision Environmental Health, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Amal Rammah
- Center for Precision Environmental Health, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Temitope Oluwadairo
- Department of Epidemiology, Human Genetics, and Environmental Sciences, University of Texas Health Science Center (UTHealth) at Houston School of Public Health, Houston, TX, 77030, USA
| | - Elaine Symanski
- Center for Precision Environmental Health, Baylor College of Medicine, Houston, TX, 77030, USA; Department of Medicine, Section of Epidemiology and Population Sciences, Baylor College of Medicine, Houston, TX, 77030, USA.
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22
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Zhang S, Wang W, Wang F, Zhang D, Rose NL. Temporal-spatial variations, source apportionment, and ecological risk of trace elements in sediments of water-level-fluctuation zone in the Three Gorges Reservoir, China. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:18282-18297. [PMID: 34687419 DOI: 10.1007/s11356-021-17066-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 10/12/2021] [Indexed: 06/13/2023]
Abstract
The Three Gorges Reservoir (TGR) plays a crucial role in providing electricity for mega-cities across China. However, since the impoundment was completed in 2006, attention to environmental concerns has also been intensive. In order to determine the distribution, sources, and pollution status of trace elements in the water fluctuation zone of the TGR following ten years of repeated "submergence" and "exposure", we systematically collected 16 paired surface sediment samples (n = 32) covering the entire main body of the TGR in March 2018 (following 6 months of submergence) and September 2018 (after 6 months of exposure), and quantitatively analyzed 13 elements (e.g., Mn, Fe, V, Cr, Ni, Cu, Zn, As, Sr, Y, Zr, Ba, and Pb) using X-ray fluorescence spectrophotometry (XRF). The results showed that, except for Sr, concentrations of trace metals following submergence were generally higher than those after exposure due to the less settling of suspended solids at the faster flow velocity during the drawdown period. Assessment using enrichment factors (EFs) and a geo-accumulation index (Igeo) both characterized a relatively serious anthropogenic pollution status of metals in the upper reaches of the TGR with respect to the middle-lower reaches. Source apportionment by positive matrix factorization (PMF) analysis indicated that agricultural activities (24.8 and 24.3%, respectively) and industrial emissions (24.5 and 22.9%, respectively) were the two major sources in these two periods, followed by natural sources, domestic sewage, and ore mining. Ecological risk assessment showed that metalloid arsenic (As) could be the main potential issue of risk to aquatic organisms and human health. A new source-specific risk assessment method (pRI) combined with PMF revealed that agricultural activities could be the major source of potential ecological risk and should be prioritized as the focus of metal/metalloid risk management in the TGR.
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Affiliation(s)
- Siyuan Zhang
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400030, China
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400030, China
- Department of Environmental Science, College of Environment and Ecology, Chongqing University, Chongqing, 400030, China
| | - Weiru Wang
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400030, China
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400030, China
- Department of Environmental Science, College of Environment and Ecology, Chongqing University, Chongqing, 400030, China
| | - Fengwen Wang
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing, 400030, China.
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400030, China.
- Department of Environmental Science, College of Environment and Ecology, Chongqing University, Chongqing, 400030, China.
| | - Daijun Zhang
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400030, China
- Department of Environmental Science, College of Environment and Ecology, Chongqing University, Chongqing, 400030, China
| | - Neil L Rose
- Environmental Change Research Centre, University College London, Gower Street, London, WC1E 6BT, UK.
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23
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Ali M, Song X, Ding D, Wang Q, Zhang Z, Tang Z. Bioremediation of PAHs and heavy metals co-contaminated soils: Challenges and enhancement strategies. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 295:118686. [PMID: 34920044 DOI: 10.1016/j.envpol.2021.118686] [Citation(s) in RCA: 65] [Impact Index Per Article: 32.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 11/20/2021] [Accepted: 12/12/2021] [Indexed: 06/14/2023]
Abstract
Systemic studies on the bioremediation of co-contaminated PAHs and heavy metals are lacking, and this paper provides an in-depth review on the topic. The released sources and transport of co-contaminated PAHs and heavy metals, including their co-occurrence through formation of cation-π interactions and their adsorption in soil are examined. Moreover, it is investigated that co-contamination of PAHs and heavy metals can drive a synergistic positive influence on bioremediation through enhanced secretion of extracellular polymeric substances (EPSs), production of biosynthetic genes, organic acid and enzymatic proliferation. However, PAHs molecular structure, PAHs-heavy metals bioavailability and their interactive cytotoxic effects on microorganisms can exert a challenging influence on the bioremediation under co-contaminated conditions. The fluctuations in bioavailability for microorganisms are associated with soil properties, chemical coordinative interactions, and biological activities under the co-contaminated PAHs-heavy metals conditions. The interactive cytotoxicity caused by the emergence of co-contaminants includes microbial cell disruption, denaturation of DNA and protein structure, and deregulation of antioxidant biological molecules. Finally, this paper presents the emerging strategies to overcome the bioavailability problems and recommends the use of biostimulation and bioaugmentation along with the microbial immobilization for enhanced bioremediation of PAHs-heavy metals co-contaminated sites. Better knowledge of the bioremediation potential is imperative to improve the use of these approaches for the sustainable and cost-effective remediation of PAHs and heavy metals co-contamination in the near future.
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Affiliation(s)
- Mukhtiar Ali
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xin Song
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Da Ding
- Nanjing Institute of Environmental Science, Ministry of Ecology and Environment of the People's Republic of China, Nanjing, 210042, China
| | - Qing Wang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Zhuanxia Zhang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhiwen Tang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China; University of Chinese Academy of Sciences, Beijing, 100049, China
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24
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Gillings MM, Fry KL, Morrison AL, Taylor MP. Spatial distribution and composition of mine dispersed trace metals in residential soil and house dust: Implications for exposure assessment and human health. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 293:118462. [PMID: 34742822 DOI: 10.1016/j.envpol.2021.118462] [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: 07/26/2021] [Revised: 09/26/2021] [Accepted: 11/02/2021] [Indexed: 06/13/2023]
Abstract
Trace metal exposure from environmental sources remains a persistent global problem, particularly in communities residing adjacent to metal extraction and processing industries. This study examines front yard soil and house dust from 62 residences throughout the Australian Ag-Pb-Zn mining city of Broken Hill to better understand spatial variability in metal distributions, compositions and exposures across an industrially polluted urban environment. X-ray fluorescence analysis of paired soil/dust samples indicated that geomean concentrations (mg/kg) of Cu (32/113), Zn (996/1852), As (24/34) and Pb (408/587) were higher in house dust while Ti (4239/3660) and Mn (1895/1101) were higher in outdoor soil. Ore associated metals and metalloids (Mn, Zn, As, Pb) in soil and house dust were positively correlated and declined in concentration away from mining areas, the primary source of metalliferous emissions in Broken Hill. The rate of decline was not equivalent between soil and house dust, with the indoor/outdoor concentration ratio increasing with distance from mining areas for Zn/Pb (geomean = 1.25/1.05 (<1 km); 2.14/1.52 (1-2 km); 2.54/2.04 (>2 km)). House dust and Broken Hill ore Pb isotopic compositions (206Pb/207Pb; 208Pb/207Pb) were more similar in homes nearest to mining areas than those further away (geomean apportioned ore Pb = 88% (<1 km); 76% (1-2 km); 66% (>2 km)), reflecting spatial shifts in the balance of sources contributing to indoor contamination. Incorporation of house dust Pb reduced overestimation of IEUBK modelled blood Pb concentrations compared to when only soil Pb was used. These findings demonstrate that even in contexts where the source and environmental burden of metals are relatively apparent, geochemical relationships and exposures between outdoor and indoor environments are not always predictable, nor easily disaggregated.
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Affiliation(s)
- Max M Gillings
- Earth and Environmental Sciences, Faculty of Science and Engineering, Macquarie University, Sydney, New South Wales, 2109, Australia
| | - Kara L Fry
- Earth and Environmental Sciences, Faculty of Science and Engineering, Macquarie University, Sydney, New South Wales, 2109, Australia
| | - Anthony L Morrison
- Earth and Environmental Sciences, Faculty of Science and Engineering, Macquarie University, Sydney, New South Wales, 2109, Australia
| | - Mark Patrick Taylor
- Earth and Environmental Sciences, Faculty of Science and Engineering, Macquarie University, Sydney, New South Wales, 2109, Australia.
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25
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Fry KL, Gillings MM, Isley CF, Gunkel-Grillon P, Taylor MP. Trace element contamination of soil and dust by a New Caledonian ferronickel smelter: Dispersal, enrichment, and human health risk. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 288:117593. [PMID: 34245983 DOI: 10.1016/j.envpol.2021.117593] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 06/03/2021] [Accepted: 06/12/2021] [Indexed: 06/13/2023]
Abstract
Metallurgical industries remain a considerable source of trace element contamination and potential human health risk. Determination of sources is a key challenge. With respect to the South Pacific's largest and longest operating metallurgic smelter in Nouméa, New Caledonia, determining the environmental impact and subsequent human health risk associated with local ferronickel smelting is complicated by natural geological enrichment of Ni and Cr. This study applies a multi-method and multi-matrix approach to disentangle smelter emissions from geogenic sources and model the consequent health risk from industrial activity. Dust wipes (n = 108), roadside soil (n = 91), garden soil (n = 15) and household vacuum dust (n = 39) were assessed to explore geospatial trace element (As, Cr, Cu, Fe, Mn, Ni, Pb, S, V and Zn) variations across outdoor and indoor environments. Enrichment factors (EF) identified elevated levels of smelter-related trace elements: S (EF = 7), Ni (EF = 6) and Cr (EF = 4), as well as Zn (EF = 4). Smelter-related elements in soil and dust deposits were negatively correlated with distance from the facility. Similarity of Pb isotopic compositions between dust wipes, surface soil and vacuum dust indicated that potentially toxic trace elements are being tracked into homes. Non-carcinogenic health risk modelling (Hazard Index, HI) based on 15 spatial nodes across Nouméa revealed widespread exceedance of tolerable risk for children (0-2 years) for Ni (HI 1.3-15.8) and Mn (HI 0.6-1.8). Risk was greatest near the smelter and to the north-west, in the direction of prevailing wind. Given the elevated cancer risk documented in New Caledonia, disentanglement of environmental from industrial sources warrants further attention to ensure community health protection. Our analysis illustrates how the confounding effects from complex environmental factors can be distilled to improve the accuracy of point source apportionment to direct future mitigation strategies.
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Affiliation(s)
- K L Fry
- Earth and Environmental Sciences, Faculty of Science and Engineering, Macquarie University, Sydney, 2109, New South Wales, Australia.
| | - M M Gillings
- Earth and Environmental Sciences, Faculty of Science and Engineering, Macquarie University, Sydney, 2109, New South Wales, Australia
| | - C F Isley
- Earth and Environmental Sciences, Faculty of Science and Engineering, Macquarie University, Sydney, 2109, New South Wales, Australia
| | - P Gunkel-Grillon
- Institute of Exact and Applied Sciences (ISEA), University of New Caledonia, BPR4 98851 Nouméa Cedex, New Caledonia, France
| | - Mark Patrick Taylor
- Earth and Environmental Sciences, Faculty of Science and Engineering, Macquarie University, Sydney, 2109, New South Wales, Australia.
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26
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Jordanova N, Jordanova D, Tcherkezova E, Georgieva B, Ishlyamski D. Advanced mineral magnetic and geochemical investigations of road dusts for assessment of pollution in urban areas near the largest copper smelter in SE Europe. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 792:148402. [PMID: 34465059 DOI: 10.1016/j.scitotenv.2021.148402] [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: 04/01/2021] [Revised: 06/04/2021] [Accepted: 06/08/2021] [Indexed: 05/16/2023]
Abstract
This study aims to evaluate the urban pollution by combined magnetometric and geochemical analyses on road dusts from three towns in the vicinity of Cu-smelter and ore mining. A collection of 117 road dust samples was investigated for their magnetic characteristics (magnetic susceptibility (χ), frequency dependent susceptibility, anhysteretic and isothermal (IRM) remanences), IRM step-wise acquisition and thermal demagnetization. Coarse grained magnetite and hematite were identified as major iron oxides in the emissions from ore spills and smelter, while traffic-related magnetic minerals were finer magnetite grains. Degree of pollution is assessed by geo-accumulation index, enrichment factor and Pollution Load Index (PLI) for a set of potentially toxic elements (PTEs). Using the geochemical data, we evaluate the carcinogenic and non-carcinogenic health risks for the population. Our results show that dust emissions from the industrial facilities likely pose significant health hazard for adults and children caused largely by Arsenic pollution in "hot spots". Based on the strong correlation between χ and most of the PTEs, detailed variations in pollution degree inside the urban areas are inferred. Strong linear regression between χ and PLI allows designating limit susceptibility values, corresponding to the PLI categories. This approach can be successfully applied for monitoring and mapping purposes at high spatial and temporal resolution.
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Affiliation(s)
- Neli Jordanova
- National Institute of Geophysics, Geodesy and Geography, Bulgarian Academy of Sciences, Acad. G. Bochev str., block 3, 1113 Sofia, Bulgaria.
| | - Diana Jordanova
- National Institute of Geophysics, Geodesy and Geography, Bulgarian Academy of Sciences, Acad. G. Bochev str., block 3, 1113 Sofia, Bulgaria
| | - Emilia Tcherkezova
- National Institute of Geophysics, Geodesy and Geography, Bulgarian Academy of Sciences, Acad. G. Bochev str., block 3, 1113 Sofia, Bulgaria
| | - Bozhurka Georgieva
- National Institute of Geophysics, Geodesy and Geography, Bulgarian Academy of Sciences, Acad. G. Bochev str., block 3, 1113 Sofia, Bulgaria
| | - Daniel Ishlyamski
- National Institute of Geophysics, Geodesy and Geography, Bulgarian Academy of Sciences, Acad. G. Bochev str., block 3, 1113 Sofia, Bulgaria
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27
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Lemaire J, Bustamante P, Mangione R, Marquis O, Churlaud C, Brault-Favrou M, Parenteau C, Brischoux F. Lead, mercury, and selenium alter physiological functions in wild caimans (Caiman crocodilus). ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 286:117549. [PMID: 34438486 DOI: 10.1016/j.envpol.2021.117549] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 06/04/2021] [Accepted: 06/05/2021] [Indexed: 06/13/2023]
Abstract
Environmental contaminants affect ecosystems worldwide and have deleterious effects on biota. Non-essential mercury (Hg) and lead (Pb) concentrations are well documented in some taxa and are described to cause multiple detrimental effects on human and wildlife. Additionally, essential selenium (Se) is known to be toxic at high concentrations but, at lower concentrations, Se can protect organisms against Hg toxicity. Crocodilians are known to bioaccumulate contaminants. However, the effects of these contaminants on physiological processes remain poorly studied. In the present study, we quantified Hg, Pb and Se concentrations in spectacled caimans (Caiman crocodilus) and investigated the effects of these contaminants on several physiological processes linked to osmoregulatory, hepatic, endocrine and renal functions measured through blood parameters in 23 individuals. Mercury was related to disruption of osmoregulation (sodium levels), hepatic function (alkaline phosphatase levels) and endocrine processes (corticosterone levels). Lead was related to disruption of hepatic functions (glucose and alanine aminotransferase levels). Selenium was not related to any parameters, but the Se:Hg molar ratio was positively related to the Na+ and corticosterone concentrations, suggesting a potential protective effect against Hg toxicity. Overall, our results suggest that Hg and Pb alter physiological mechanisms in wild caimans and highlight the need to thoroughly investigate the consequences of trace element contamination in crocodilians.
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Affiliation(s)
- Jérémy Lemaire
- Centre d'Études Biologiques de Chizé (CEBC), UMR 7372 CNRS-La Rochelle Université, 79360 Villiers en Bois, France; Littoral Environnement et Sociétés (LIENSs), UMR 7266 CNRS-La Rochelle Université, 2 rue Olympe de Gouges, 17000 La Rochelle, France.
| | - Paco Bustamante
- Littoral Environnement et Sociétés (LIENSs), UMR 7266 CNRS-La Rochelle Université, 2 rue Olympe de Gouges, 17000 La Rochelle, France; Institut Universitaire de France (IUF), 1 rue Descartes, 75005 Paris, France
| | - Rosanna Mangione
- Division of Behavioural Ecology, Institute of Ecology and Evolution, University of Bern, Wohlenstrasse 50a, CH-3032, Hinterkappelen, Switzerland
| | - Olivier Marquis
- Sorbonne Université, Muséum National d'Histoire Naturelle, Parc Zoologique de Paris, 53 Avenue de Saint Maurice, 75012 Paris, France
| | - Carine Churlaud
- Littoral Environnement et Sociétés (LIENSs), UMR 7266 CNRS-La Rochelle Université, 2 rue Olympe de Gouges, 17000 La Rochelle, France
| | - Maud Brault-Favrou
- Littoral Environnement et Sociétés (LIENSs), UMR 7266 CNRS-La Rochelle Université, 2 rue Olympe de Gouges, 17000 La Rochelle, France
| | - Charline Parenteau
- Centre d'Études Biologiques de Chizé (CEBC), UMR 7372 CNRS-La Rochelle Université, 79360 Villiers en Bois, France
| | - François Brischoux
- Centre d'Études Biologiques de Chizé (CEBC), UMR 7372 CNRS-La Rochelle Université, 79360 Villiers en Bois, France
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28
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Recycling of Blast Furnace and Coal Slags in Aided Phytostabilisation of Soils Highly Polluted with Heavy Metals. ENERGIES 2021. [DOI: 10.3390/en14144300] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
(1) Background: The growing demand for developing new methods of degraded land remediation is linked to the need to improve the soil environment, including post-industrial soils. Biological methods such as the aided phytostabilisation technique are the most common methods applied to achieve effective remediation. This study aimed to determine the technical potential of methods using novel or yet not used soil amendments, such as blast furnace slag (BFS) and coal slag (CS), with Dactylis glomerata L. as a test plant. (2) Methods: The experiment was conducted on post-industrial area soil with high concentrations of Cu (761 mg/kg), Cd (23.9 mg/kg), Pb (13,539 mg/kg) and Zn (8683 mg/kg). The heavy metal content in roots and the above-ground parts of plants and soil was determined by flame atomic absorption spectrometry. (3) Results: The addition of BFS to the soil was the most effective in increasing Dactylis glomerata L. biomass yield. The Cu, Cd, Pb, and Zn concentrations were higher in the roots than in the above-ground parts of the plants. BFS and CS induced a considerable increase in soil pH, compared to the control treatment. The addition of BFS also produced the greatest significant decrease in the Pb content in soil following the phytostabilisation process. (4) Conclusions: In view of the above, the use of BFS in the aided phytostabilisation in soils contaminated with high levels of Cu, Cd, Pb, and Zn can be recommended for larger-scale in situ projects.
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29
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Lin JY, Cao XY, Xiao Y, Wang JX, Luo SH, Yang LT, Fang YG, Wang ZY. Controllable preparation and performance of bio-based poly(lactic acid-iminodiacetic acid) as sustained-release Pb 2+ chelating agent. iScience 2021; 24:102518. [PMID: 34142032 PMCID: PMC8188493 DOI: 10.1016/j.isci.2021.102518] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 04/04/2021] [Accepted: 05/04/2021] [Indexed: 11/15/2022] Open
Abstract
The bio-based lactic acid (LA) and the common metal ion chelating agent iminodiacetic acid (IDA) are used to design and prepare a polymeric sustained-release Pb2+ chelating agent by a brief one-step reaction. After the analysis on theoretical calculation for this reaction, poly(lactic acid-iminodiacetic acid) [P(LA-co-IDA)] with different monomer molar feed ratios is synthesized via direct melt polycondensation. P(LA-co-IDA) mainly has star-shaped structure, and some of them have two-core or three-core structure. Thus, a possible mechanism of the polymerization is proposed. The degradation rate of P(LA-co-IDA)s can reach 70% in 4 weeks. The change of IDA release rate is consistent with the trend of the degradation rate, and the good Pb2+ chelating performance is confirmed. P(LA-co-IDA) is expected to be developed as a lead poisoning treatment drug or Pb2+ adsorbent in the environment with long-lasting effect, and this research provides a new strategy for the development of such drugs.
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Affiliation(s)
- Jian-Yun Lin
- School of Chemistry, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, Guangzhou 510006, P. R. China
| | - Xi-Ying Cao
- School of Chemistry, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, Guangzhou 510006, P. R. China
| | - Ying Xiao
- School of Chemistry, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, Guangzhou 510006, P. R. China
| | - Jin-Xin Wang
- School of Chemistry, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, Guangzhou 510006, P. R. China
| | - Shi-He Luo
- School of Chemistry, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, Guangzhou 510006, P. R. China
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510640, P. R. China
| | - Li-Ting Yang
- School of Chemistry, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, Guangzhou 510006, P. R. China
| | - Yong-Gan Fang
- School of Chemistry, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, Guangzhou 510006, P. R. China
| | - Zhao-Yang Wang
- School of Chemistry, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, Guangzhou 510006, P. R. China
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510640, P. R. China
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Soto-Jiménez MF, Flegal AR. Inventory of Pb emissions from one of the largest historic Pb smelter worldwide: 118-year legacy of Pb pollution in northern Mexico. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:20737-20750. [PMID: 33409992 DOI: 10.1007/s11356-020-11788-8] [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: 08/08/2020] [Accepted: 11/22/2020] [Indexed: 06/12/2023]
Abstract
The atmospheric Pb emissions (1901-2019), from one of the world's largest non-ferrous metallurgical complexes (Met-Mex in Torreón, México), were estimated based on historical records of modifications in the design, processes, and production volumes. Eight historical periods, with differing amounts of Pb emissions, were distinguished: (1) Essentially no controls (1901-1960); (2) migration to limited controls (1961-1972) by conversion to a Pb-Zn smelter-refining complex and installation of SO2 collectors in 1961-1963; (3) completion to limited control (1973-1977) by the installation of a third H2SO4 collector and a low-efficiency filtration system; (4) maintenance of limited control with no changes (1978-1987); (5) migration to strict control (1988 to 1998) by updating H2SO4 collectors and installation of fertilizer and SO2 liquid extraction plants; (6) completion to strict control (1999-2000) by the installation of state-art technology filtration systems and roofing working areas; (7) migration to abatement (2001-2003) by implantation of good management practices; and (8) maintenance of abatement following good management practices (2004-2019). Based on differences between those periods, we reconstructed the evolution of the Pb emission reduction efficiency (ER in %) and Pb emission factors (EF in gram/ton) for the Torreón complex. Pb emitted by the complex over the past 118 years totaled 23,350-27,580 t, with most of it (63-75%) occurring when emission controls were negligible (pre-1960 period). In comparisons with other facilities worldwide (e.g., the USA, Canada, and Europa), the modification in Met-Mex for control the Pb emission occurred several years. Emissions from the primary Pb-Zn smelter-refining are released mostly to the atmosphere from the sintering, smelting, drossing, and refining. While Pb emissions from the facility have declined by over an order of magnitude to contemporary levels (≤ 12.6 t/year), the current Pb rates still account for atmospheric Pb levels that are 2-3 times higher the USEPA standard and still constitutes a major health threat in Torreón.
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Affiliation(s)
- Martín Federico Soto-Jiménez
- Instituto de Ciencias del Mar y Limnología, Unidad Académica Mazatlán, UNAM, Av. Joel Montes Camarena s/n Centro, 82040, Mazatlán, Sinaloa, Mexico.
| | - Arthur Russel Flegal
- Institute of Marine Science, WIGS, University of California at Santa Cruz, Santa Cruz, CA, 95064, USA
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Zhou H, Liu G, Zhang L, Zhou C, Mian MM, Cheema AI. Strategies for arsenic pollution control from copper pyrometallurgy based on the study of arsenic sources, emission pathways and speciation characterization in copper flash smelting systems. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 270:116203. [PMID: 33321434 DOI: 10.1016/j.envpol.2020.116203] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 11/22/2020] [Accepted: 11/29/2020] [Indexed: 06/12/2023]
Abstract
Arsenic in copper flash smelting (FS) systems not only affects the quality of products but also poses significant technological and environmental problems. Based on the assessment of arsenic mass partitioning in the FS system, arsenic elimination in off-gassing and tailings is 22%, and most of the arsenic output (69%) is recycled in the FS system. Circulating arsenic, especially arsenic in recycled dust and slag concentrate, is the key reason for high-arsenic-content feed. Dust-type recycled materials (RMs) contribute much more arsenic to the feed than slag-type RMs. Flash smelting furnace electrostatic precipitator (FSF ESP) dust contributes makese the largest contribution to arsenic among the dust-type RMs of mixed dust, especially trivalent arsenic, followed by FSF and flash converting furnace waste heat boiler (FCF WHB) dust, which contributes pentavalent arsenic. FCF WHB dust exhibits a relatively low arsenic content, consisting mainly of As(V)-O. Slag-type recycled materials contribute As(V)-O to the total feed, and As(III) originates from copper concentrates. Considering the arsenic contribution and environmental risk, reducing the recovery of FSF ESP dust can greatly decrease the arsenic grade of FSF feed and volatile As2O3. As one of the main arsenic sources in feed, FSF slag concentrate should be carefully disposed of if separated from feed materials because of its high arsenic-related environmental risk. In contrast, WHB dust and FCF slag are more suitable as RM due to their high copper content and low arsenic risk.
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Affiliation(s)
- Huihui Zhou
- CAS Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, The Chinese Academy of Sciences, Xi'an, Shanxi, 710075, PR China
| | - Guijian Liu
- CAS Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, The Chinese Academy of Sciences, Xi'an, Shanxi, 710075, PR China.
| | - Liqun Zhang
- School of Resource and Environmental Engineering, Anhui University, Hefei, 230601, China
| | - Chuncai Zhou
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Md Manik Mian
- CAS Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, The Chinese Academy of Sciences, Xi'an, Shanxi, 710075, PR China
| | - Ayesha Imtiyaz Cheema
- CAS Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, The Chinese Academy of Sciences, Xi'an, Shanxi, 710075, PR China
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Baldissera MD, Souza CF, Barroso DC, Pereira RS, de Oliveira FC, Alessio KO, Wagner R, Bizzi CA, Baldisserotto B, Val AL. Consequences of oxidative damage on the fatty acid profile in muscle of Cichlasoma amazonarum acutely exposed to copper. FISH PHYSIOLOGY AND BIOCHEMISTRY 2020; 46:2377-2387. [PMID: 33025302 DOI: 10.1007/s10695-020-00884-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 09/27/2020] [Indexed: 06/11/2023]
Abstract
Rapid industrialization results in the production of large quantities of waste that are commonly discharged into water bodies, leading to the damage of the aquatic ecosystem and freshwater organisms. Copper (Cu) can induce oxidative damage in fish muscle, the main fish portion that is consumed by humans. However, the responses of the Amazon fish Cichlasoma amazonarum and its capacity to withstand acute Cu concentrations found in Amazon water around mines remain unknown. Thus, the aim of this study was to evaluate whether exposure to Cu causes muscle oxidative stress and/or oxidative damage and impairs the fillet fatty acid profile of C. amazonarum acutely exposed to Cu found in Amazon waters around mines. Muscle reactive oxygen species and protein carbonylation levels were significantly higher in fish exposed to 1500 μg/L Cu compared with the control group, while muscle lipid peroxidation levels were significantly higher in fish exposed to 500, 750, and 1500 μg/L Cu compared with control group. Muscle antioxidant capacity against peroxyl radical's levels and glutathione peroxidase activity were significantly lower in fish exposed to 1500 μg/L Cu compared with the control group, while muscle superoxide dismutase activity was significantly lower in fish exposed to 750 and 1500 μg/L Cu compared with control group. The total content of saturated fatty acids was significantly higher in fish exposed to 1500 μg/L Cu compared with the control group, while the total content of monounsaturated fatty acids and sum of n3 fatty acids were significantly lower in fish exposed to 1500 μg/L Cu compared with control group. No significant difference was observed regarding muscle catalase, glutathione S-transferase, and glutathione reductase activities. Based on these lines of evidence, the results of this comprehensive study agree with the initial hypothesis that the exposure to Cu found in Amazon water around mines induces oxidative damage and inhibits enzymatic and non-enzymatic antioxidant response in the muscle of C. amazonarum exposed to high Cu levels. Moreover, the impairment of the fillet fatty acid profile appears to be mediated by oxidative damage, representing a negative impact on fish health.
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Affiliation(s)
- Matheus D Baldissera
- Department of Physiology and Pharmacology, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil.
| | - Carine F Souza
- Department of Physiology and Pharmacology, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
| | - Danilo C Barroso
- LEEM-Laboratory of Ecophysiology and Molecular Evolution, Brazilian National Institute for Research of the Amazon, Manaus, Amazonas, Brazil
| | - Rogério S Pereira
- LEEM-Laboratory of Ecophysiology and Molecular Evolution, Brazilian National Institute for Research of the Amazon, Manaus, Amazonas, Brazil
| | - Fernanda C de Oliveira
- Department of Food Science and Technology, Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Keiti O Alessio
- Department of Chemistry, Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Roger Wagner
- Department of Food Science and Technology, Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Cezar A Bizzi
- Department of Chemistry, Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Bernardo Baldisserotto
- Department of Physiology and Pharmacology, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
| | - Adalberto L Val
- LEEM-Laboratory of Ecophysiology and Molecular Evolution, Brazilian National Institute for Research of the Amazon, Manaus, Amazonas, Brazil
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Baldissera MD, Souza CF, Barroso DC, Pereira RS, Alessio KO, Bizzi C, Baldisserotto B, Val AL. Acute exposure to environmentally relevant concentrations of copper affects branchial and hepatic phosphoryl transfer network of Cichlasoma amazonarum: Impacts on bioenergetics homeostasis. Comp Biochem Physiol C Toxicol Pharmacol 2020; 238:108846. [PMID: 32777469 DOI: 10.1016/j.cbpc.2020.108846] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 07/23/2020] [Accepted: 07/27/2020] [Indexed: 12/13/2022]
Abstract
The toxic effects of copper (Cu) are linked to dysfunction of metabolism and depletion of adenosine triphosphate (ATP). Nevertheless, the effects related to phosphoryl transfer network, a network of enzymes to precise coupling of the ATP-production and ATP-consuming process for maintenance of bioenergetic, remain unknown. Therefore, the aim of this study was to determine whether the phosphoryl transfer network could be one pathway involved in the bioenergetic imbalance of Cichlasoma amazonarum exposed for 96 h to environmentally relevant concentrations of Cu found in Amazonia water around mines. Branchial mitochondrial creatine kinase (CK) activity was significantly lower in fish exposed to 1500 μg/L Cu than in the control group, while branchial cytosolic CK activity was significantly greater. Branchial (exposed to 750 and 1500 μg/L Cu) and hepatic (exposed to 1500 μg/L Cu) pyruvate kinase (PK) activity was significantly lower in fish exposed to Cu than in the control group. Branchial and hepatic ATP levels were significantly lower in fish exposed to 1500 μg/L than in the control group. Branchial reactive oxygen species (ROS) and lipid peroxidation (LPO) levels were significantly higher in fish exposed to 750 and 1500 μg/L Cu compared to control. Hepatic ROS and LPO levels were significantly higher in fish exposed to 1500 μg/L than in the control group. Branchial and hepatic Cu levels were significantly higher in fish exposed to 1500 μg/L compared to other groups. Exposure to 750 and 1500 μg/L Cu impairs bioenergetics homeostasis, which appears to be mediated by ROS overproduction and lipid peroxidation.
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Affiliation(s)
- Matheus D Baldissera
- Department of Physiology and Pharmacology, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil.
| | - Carine F Souza
- Department of Physiology and Pharmacology, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
| | - Danilo C Barroso
- LEEM-Laboratory of Ecophysiology and Molecular Evolution, Brazilian National Institute for Research of the Amazon, Manaus, Amazonas, Brazil
| | - Rogério Santos Pereira
- LEEM-Laboratory of Ecophysiology and Molecular Evolution, Brazilian National Institute for Research of the Amazon, Manaus, Amazonas, Brazil
| | - Keiti O Alessio
- Department of Chemistry, Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Cézar Bizzi
- Department of Chemistry, Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, Brazil
| | - Bernardo Baldisserotto
- Department of Physiology and Pharmacology, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
| | - Adalberto L Val
- LEEM-Laboratory of Ecophysiology and Molecular Evolution, Brazilian National Institute for Research of the Amazon, Manaus, Amazonas, Brazil
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Wu L, Fu S, Wang X, Chang X. Mapping of atmospheric heavy metal deposition in Guangzhou city, southern China using archived bryophytes. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 265:114998. [PMID: 32563808 DOI: 10.1016/j.envpol.2020.114998] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 05/20/2020] [Accepted: 06/06/2020] [Indexed: 06/11/2023]
Abstract
Atmospheric heavy metal contamination is becoming a serious threat to environmental and human health in Chinese megacities. This study evaluated the concentrations of arsenic (As), cadmium (Cd), copper (Cu), lead (Pb) and zinc (Zn) and Pb isotopic compositions in herbarium and native bryophytes collected from Guangzhou from 1932 to 2018. Relatively low mean metal concentrations were measured for bryophytes collected in the 1930s. The highest mean concentrations of Cd (0.72 ± 0.32 mg/kg), Cu (28.1 ± 9.8 mg/kg), Pb (125.9 ± 62.4 mg/kg) and Zn (273 ± 130 mg/kg) were found in the bryophytes from 1979 to 2000, following the commencement of the Reform and Opening-Up Program in 1978. The mean Pb concentrations (74.7 ± 6.3 mg/kg) decreased sharply from 2001 onwards, following the cessation of leaded petrol across the Chinese mainland in 2000. However, these values are still higher than those in 1950-1978, corresponding to a significant increase in atmospheric Pb emissions from coal combustion, nonferrous metal smelting and motor vehicle petrol consumption in China in the 2000s. The lead isotopic ratios of bryophyte archives (206Pb/207Pb 1.141-1.229, 208Pb/207Pb 2.376-2.482) indicate that lithogenic input and anthropogenic input arising from leaded petrol and industrial emissions have been the main sources of atmospheric heavy metal deposition in the city of Guangzhou over the past 85 years. Herbarium bryophyte can be utilised to reconstruct temporal and spatial shifts in atmospheric heavy metal deposition to better understand and manage the current air quality in Chinese megacities.
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Affiliation(s)
- Liqin Wu
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Shanming Fu
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Xiaohong Wang
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Xiangyang Chang
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China.
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