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Su C, Rana NM, Zhang S, Wang B. Environmental pollution and human health risk due to tailings storage facilities in China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 928:172437. [PMID: 38614343 DOI: 10.1016/j.scitotenv.2024.172437] [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: 12/17/2023] [Revised: 04/09/2024] [Accepted: 04/10/2024] [Indexed: 04/15/2024]
Abstract
Tailings storage facilities (TSFs) represent an anthropogenic source of pollution, resulting in potential risks to both environmental integrity and human health. To date, the environmental and human health risks from TSFs in China have been under-researched. This study attempts to address this gap by developing, and geo-statistically analyzing two comprehensive databases. The first database (I) focuses on failed TSFs; we supply the statistics of environmental damages from 143 TSF failure incidents. Notably, approximately 75 % of the failure incidents involved tailings flows released into water bodies, resulting in a significant exacerbation of environmental pollution. To better inform ecological and human health risks, we present another database (II) for 147 non-failed TSFs to investigate the soil heavy metal contamination, considering 8 heavy metals. The findings reveal that (i) Cd, Pb, and Hg are the prominent pollutants across the non-failed TSF sites in China; (ii) lead‑zinc and tungsten mine tailings storage sites exhibit the most severe pollution; (iii) Pb, Cd, and Ni present noteworthy non-carcinogenic risks to human health; (iv) >85 % of TSF sites pose carcinogenic risks associated with arsenic; and (v) health risks resulting from dermal absorption surpass ingestion for the majority of heavy metals, with the exception of Pb, where ingestion presents a more pronounced route of exposure. Our study presents a comprehensive evaluation of environmental and human health risks due to TSFs, highlighting the necessity for risk assessment of >14,000 existing TSFs in China.
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Affiliation(s)
- Chenxu Su
- Department of Civil Engineering, Zhejiang University, Hangzhou, People's Republic of China
| | | | - Shuai Zhang
- Department of Civil Engineering, Zhejiang University, Hangzhou, People's Republic of China; MOE Key Laboratory of Soft Soils and Geoenvironmental Engineering, Zhejiang University, Hangzhou, People's Republic of China.
| | - Bijiao Wang
- Department of Civil Engineering, Zhejiang University, Hangzhou, People's Republic of China
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2
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Li Y, Zhou N, Yan J, Cui K, Chu Q, Chen X, Luo X, Deng X. A dual-signaling surface-enhanced Raman spectroscopy ratiometric strategy for ultrasensitive Hg 2+ detection based on Au@Ag/COF composites. Food Chem 2024; 456:139998. [PMID: 38852458 DOI: 10.1016/j.foodchem.2024.139998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 03/26/2024] [Accepted: 06/04/2024] [Indexed: 06/11/2024]
Abstract
Heavy metal ion pollution poses significant risks to human health and ecological systems, and its monitoring is important. A sensitive and accurate surface-enhanced Raman spectroscopy (SERS) detection assay for Hg2+ was developed using Au@Ag/COF substrates and Y-shaped DNA labeled with two Raman reporters. The Au@Ag NPs in the COF produced robust and uniform E-fields, improving their detection reproducibility. The Y-shaped DNA design increased sensitivity with a low detection limit of 5.0 × 10-16 M by bringing the Raman reporter closer to the substrate surface. Additionally, the use of two Raman reporters allowed for a ratiometric method, improving detection accuracy by detecting both "signal-off" and "signal-on" signals. This selective sensor exhibited excellent recovery in river water, tap water, and milk samples, showcasing its robust biosensing capability for the detection of Hg2+ and its potential for sensing other heavy-metal ions in food and environmental applications.
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Affiliation(s)
- Yuanyuan Li
- Shanghai Institute of Doping Analyses, Shanghai University of Sport, Shanghai 200438, PR China
| | - Na Zhou
- School of Science, Xihua University, Chengdu 610039, PR China
| | - Jiayu Yan
- Shanghai Institute of Doping Analyses, Shanghai University of Sport, Shanghai 200438, PR China
| | - Kaixin Cui
- School of Science, Xihua University, Chengdu 610039, PR China
| | - Qiqi Chu
- Shanghai Institute of Doping Analyses, Shanghai University of Sport, Shanghai 200438, PR China
| | - Xi Chen
- Shanghai Institute of Doping Analyses, Shanghai University of Sport, Shanghai 200438, PR China
| | - Xiaojun Luo
- School of Science, Xihua University, Chengdu 610039, PR China.
| | - Xiaojun Deng
- Shanghai Institute of Doping Analyses, Shanghai University of Sport, Shanghai 200438, PR China.
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3
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Morelli G, Ciani F, Cocozza C, Costagliola P, Fagotti C, Friani R, Lattanzi P, Manca R, Monnanni A, Nannoni A, Rimondi V. Riparian trees in mercury contaminated riverbanks: an important resource for sustainable remediation management. ENVIRONMENTAL RESEARCH 2024:119373. [PMID: 38852831 DOI: 10.1016/j.envres.2024.119373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 05/17/2024] [Accepted: 06/05/2024] [Indexed: 06/11/2024]
Abstract
Mining operations generate sediment erosion rates above those of natural landscapes, causing persistent contamination of floodplains. Riparian vegetation in mine-impacted river catchments plays a key role in the storage/remobilization of metal contaminants. Mercury (Hg) pollution from mining is a global environmental challenge. This study provides an integrative assessment of Hg storage in riparian trees and soils along the Paglia River (Italy) which drains the abandoned Monte Amiata Hg mining district, the 3rd former Hg producer worldwide, to characterize their role as potential secondary Hg source to the atmosphere in case of wildfire or upon anthropic utilization as biomass. In riparian trees and nearby soils Hg ranged between 0.7 and 59.9 μg/kg and 2.2 and 52.8 mg/kg respectively. In trees Hg concentrations were below 100 μg/kg, a recommended Hg limit for the quality of solid biofuels. Commercially, Hg contents in trees have little impact on the value of the locally harvested biomass and pose no risk to human health, although higher values (195-738 μg/kg) were occasionally found. In case of wildfire, up to 1.4*10-3 kg Hg/ha could be released from trees and 27 kg Hg/ha from soil in the area, resulting in an environmentally significant Hg pollution source. Data constrained the contribution of riparian trees to the biogeochemical cycling of Hg highlighting their role in management and restoration plans of river catchments affected by not-remediable Hg contamination. In polluted river catchments worldwide riparian trees represent potential sustainable resources for the mitigation of dispersion of Hg in the ecosystem, considering i) their Hg storage capacity, ii) their potential to be used for local energy production (e.g. wood-chips) through the cultivation and harvesting of biomasses and, iii) their role in limiting soil erosion from riparian polluted riverbanks, probably representing the best pragmatic choice to minimize the transport of toxic elements to the sea.
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Affiliation(s)
- Guia Morelli
- CNR - Institute of Geosciences and Earth Resources, Via G. La Pira 4, Florence, 50121, Italy
| | - Francesco Ciani
- Department of Earth Sciences, University of Florence, Via G. La Pira 4, Florence, 50121, Italy.
| | - Claudia Cocozza
- Dipartimento di Scienze e Tecnologie Agrarie, Alimentari, Ambientali e Forestali (DAGRI)
| | - Pilario Costagliola
- Department of Earth Sciences, University of Florence, Via G. La Pira 4, Florence, 50121, Italy
| | - Cesare Fagotti
- ARPA Toscana-Area Vasta Sud,Loc. Ruffolo, 53100 Siena,Italy
| | | | - Pierfranco Lattanzi
- CNR - Institute of Geosciences and Earth Resources, Via G. La Pira 4, Florence, 50121, Italy
| | - Rosarosa Manca
- Department of Earth Sciences, University of Florence, Via G. La Pira 4, Florence, 50121, Italy
| | - Alessio Monnanni
- Department of Earth Sciences, University of Florence, Via G. La Pira 4, Florence, 50121, Italy
| | - Alessia Nannoni
- Department of Earth Sciences, University of Florence, Via G. La Pira 4, Florence, 50121, Italy
| | - Valentina Rimondi
- Department of Earth Sciences, University of Florence, Via G. La Pira 4, Florence, 50121, Italy
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Ma T, Luo H, Sun J, Dang Z, Lu G. The effect of heavy precipitation on the leaching of heavy metals from tropical coastal legacy tailings. WASTE MANAGEMENT (NEW YORK, N.Y.) 2024; 186:1-10. [PMID: 38833785 DOI: 10.1016/j.wasman.2024.05.049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 05/19/2024] [Accepted: 05/31/2024] [Indexed: 06/06/2024]
Abstract
The continued growth in demand for mineral resources has led to a large amount of mining wastes, which is a major challenge in the context of carbon neutrality and climate change. In this study, runoff migration, batch leaching, and column experiments were used to investigate the short-, medium-, and long-term leaching of heavy metals from legacy tailings, respectively; the cumulative metal release kinetic equations were established, and the long-term effects of tailings leaching were verified by HYDRUS-1D. In runoff migration experiments, surface dissolution of tailings and the co-migration of adsorbed soil particles by erosion were the main carriers in the early stages of leachate formation (Mn ∼ 65 mg/L and SO42- up to 2697.2 mg/L). Batch leaching tests showed that the concentration of heavy metals in soil leached by acid rain were 0.1 ∼ 22.0 μg/L for Cr, 0.7 ∼ 26.0 μg/L for Cu, 4.8 ∼ 5646.0 μg/L for Mn, 0.3 ∼ 232.4 μg/L for Ni, and 1.3 ∼ 448.0 μg/L for Zn. The results of column experiments indicated that some soluble components and metals with high mobility showed a significant decreasing trend at cumulative L/S ≤ 2. Additionally, the metals have higher leaching rates under TCLP conditions, as shown by Mn > Co > Zn > Cd > Ni > Cu > Pb > Cr. The fitting results of Langmuir equation were closer to the cumulative release of metals in the real case, and the release amounts of Mn, Zn, Co, and Ni were higher with 55, 5.84, 2.66, and 2.51 mg/kg, respectively. The water flow within tailings affects the spatial distribution of metals, which mainly exist in relatively stable chemical fractions (F3 + F4 + F5 > 90 %) after leaching. Numerical simulation verified that Mn in leachate has reached 8 mg/L at a scale of up to 100 years. The research results are expected to provide technical basis for realizing the resource utilization of tailings in the future.
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Affiliation(s)
- Tengfei Ma
- Sinopec Maoming Petrochemical Co., Ltd., Maoming 525000, China; School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
| | - Hanjin Luo
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
| | - Jianteng Sun
- Guangdong Provincial Key Laboratory of Petrochemcial Pollution Processes and Control, Guangdong University of Petrochemical Technology, Maoming 525000, China
| | - Zhi Dang
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, South China University of Technology, Guangzhou 510006, China
| | - Guining Lu
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou 510006, China.
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Shu X, Qin Z, Nie C, Zhang D, Du H, Zhang Q, Dang Z. Inhibition photooxidation of pyrite under illumination via altering photogenerated carrier migration pathways: Role of DTC-TETA surface passivation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 926:171988. [PMID: 38537811 DOI: 10.1016/j.scitotenv.2024.171988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Revised: 03/04/2024] [Accepted: 03/24/2024] [Indexed: 04/04/2024]
Abstract
The oxidation of pyrite is the main cause of acidic mine drainage (AMD), which is a very serious environmental problem in numerous mining areas around the world. Previous studies have shown that passivation agents create a hydrophobic film on the surface of pyrite, effectively isolating oxygen and water. However, the presence of abundant sulfide minerals in tailings ponds may exacerbate AMD when exposed to solar radiation, due to the semiconductor properties of pyrite. It remains uncertain whether the current surface passivation coating can effectively prevent the oxidation of pyrite under light conditions. This paper is the first to investigate the passivation effect as well as the mechanism of surface passivation coating on pyrite under illumination from the perspective of materials science. The results demonstrated that the triethylenetetramine-bisdithiocarbamate (DTC-TETA) passivation coating on pyrite almost completely suppressed the photooxidation of pyrite under illumination by changing the migration path of photogenerated charge carriers. The formation of NC(S)2-Fe chelating groups provides atomic-level interface channels for DTC-TETA to transfer electrons to pyrite and creates a favorable reduction environment for pyrite. Besides, DTC-TETA coating greatly improves the electron-hole pairs recombination efficiency of pyrite, which significantly inhibits the photogenerated electron reduction of oxygen to generate reactive oxygen species (ROS). Moreover, DTC-TETA coating captures the photogenerated holes, avoiding direct oxidation of pyrite by holes. Density functional theory (DFT) calculations revealed that the DTC-TETA coating increases the adsorption energy barrier for oxygen and water. The results extend the existing knowledge on passivation mechanisms on pyrite and hold significant implications for the future screening, evaluation, and practical application of surface passivating agents.
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Affiliation(s)
- Xiaohua Shu
- The Guangxi Key Laboratory of Theory and Technology for Environmental Pollution Control, Guilin University of Technology, Guilin 541006, China; College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541000, PR China
| | - ZiQi Qin
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541000, PR China
| | - Changda Nie
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541000, PR China
| | - Dinghua Zhang
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541000, PR China
| | - Haijie Du
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541000, PR China.
| | - Qian Zhang
- School of Life and Environmental Science, Guilin University of Electronic Technology, Guilin, Guangxi 541000, PR China.
| | - Zhi Dang
- School of Environment and Energy, South China University of Technology, Guangzhou 510640, PR China
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Ren M, Zhuang Q, He X, Liu W, Guo C, Ye H, Reinfelder JR, Ma C, Li J, Dang Z. Speciation and Possible Origins of Organosulfur Compounds in Rice Paddy Soils Affected by Acid Mine Drainage. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:7357-7366. [PMID: 38568220 DOI: 10.1021/acs.est.3c09622] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/01/2024]
Abstract
Although sulfur cycling in acid mine drainage (AMD)-contaminated rice paddy soils is critical to understanding and mitigating the environmental consequences of AMD, potential sources and transformations of organosulfur compounds in such soils are poorly understood. We used sulfur K-edge X-ray absorption near edge structure (XANES) spectroscopy to quantify organosulfur compounds in paddy soils from five AMD-contaminated sites and one AMD-uncontaminated reference site near the Dabaoshan sulfide mining area in South China. We also determined the sulfur stable isotope compositions of water-soluble sulfate (δ34SWS), adsorbed sulfate (δ34SAS), fulvic acid sulfur (δ34SFAS), and humic acid sulfur (δ34SHAS) in these samples. Organosulfate was the dominant functional group in humic acid sulfur (HAS) in both AMD-contaminated (46%) and AMD-uncontaminated paddy soils (42%). Thiol/organic monosulfide contributed a significantly lower proportion of HAS in AMD-contaminated paddy soils (8%) compared to that in AMD-uncontaminated paddy soils (21%). Within contaminated soils, the concentration of thiol/organic monosulfide was positively correlated with cation exchange capacity (CEC), moisture content (MC), and total Fe (TFe). δ34SFAS ranged from -6.3 to 2.7‰, similar to δ34SWS (-6.9 to 8.9‰), indicating that fulvic acid sulfur (FAS) was mainly derived from biogenic S-bearing organic compounds produced by assimilatory sulfate reduction. δ34SHAS (-11.0 to -1.6‰) were more negative compared to δ34SWS, indicating that dissimilatory sulfate reduction and abiotic sulfurization of organic matter were the main processes in the formation of HAS.
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Affiliation(s)
- Meihui Ren
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China
| | - Qinglin Zhuang
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China
| | - Xiaoshuang He
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China
| | - Wenxuan Liu
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China
| | - Chuling Guo
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou 510006, PR China
| | - Han Ye
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China
| | - John R Reinfelder
- Department of Environmental Sciences, Rutgers University, New Brunswick, New Jersey 08901, United States
| | - Chengyan Ma
- Institute of High Energy Physics, Chinese Academy of Science, Beijing Synchrotron Radiation Facility, Beijing 100049, China
| | - Jianmin Li
- Institute of High Energy Physics, Chinese Academy of Science, Beijing Synchrotron Radiation Facility, Beijing 100049, China
| | - Zhi Dang
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou 510006, PR China
- China Guangdong Provincial Key Lab of Solid Wastes Pollution Control and Recycling, South China University of Technology, Guangzhou 510006, China
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7
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Han X, Wu H, Li Q, Cai W, Hu S. Assessment of heavy metal accumulation and potential risks in surface sediment of estuary area: A case study of Dagu river. MARINE ENVIRONMENTAL RESEARCH 2024; 196:106416. [PMID: 38394977 DOI: 10.1016/j.marenvres.2024.106416] [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: 12/15/2023] [Revised: 01/31/2024] [Accepted: 02/18/2024] [Indexed: 02/25/2024]
Abstract
Soil/sediment samples of four different land types were collected from aquaculture land, farmland, industrial land and river bottom sediment in the estuary area of Dagu River. The contents of Cr, Cu, Zn, As, Cd and Pb in 0-30 cm inner surface samples were detected, and the distribution characteristics of heavy metal content in surface soil/sediment of different land use types in the estuary area were analyzed. Local accumulation index method, potential risk index evaluation method and principal component analysis method were used to analyze the pollution status and sources of heavy metals. The results showed that the heavy metal accumulation levels in soil and sediment samples in the study area were As > Cd > Cu > Pb > Zn > Cr, and the heavy metal content exceeded the soil background value in Shandong Province, but the potential risks were all in a low risk state. The main sources of Cr, Zn and As are transportation sources and natural sources, while the main sources of Cd and Pb are agricultural.
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Affiliation(s)
- Xiran Han
- School of Environmental Science and Engineering, Qingdao University, Qingdao, 266071, China
| | - Hao Wu
- School of Environmental Science and Engineering, Qingdao University, Qingdao, 266071, China
| | - Qingyu Li
- School of Environmental Science and Engineering, Qingdao University, Qingdao, 266071, China
| | - Wenrui Cai
- School of Environmental Science and Engineering, Qingdao University, Qingdao, 266071, China
| | - Shuya Hu
- School of Environmental Science and Engineering, Qingdao University, Qingdao, 266071, China.
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Owen JR, Kemp D, Lechner AM, Ang Li Ern M, Lèbre É, Mudd GM, Macklin MG, Saputra MRU, Witra T, Bebbington A. Increasing mine waste will induce land cover change that results in ecological degradation and human displacement. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 351:119691. [PMID: 38064991 DOI: 10.1016/j.jenvman.2023.119691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 11/10/2023] [Accepted: 11/21/2023] [Indexed: 01/14/2024]
Affiliation(s)
- John R Owen
- Centre for Development Support, University of the Free State, 205 Nelson Mandela Dr, Park West, Bloemfontein, 9301, South Africa.
| | - Deanna Kemp
- Centre for Social Responsibility in Mining, Sustainable Minerals Institute, The University of Queensland, Brisbane, QLD, 4072, Australia.
| | - Alex M Lechner
- Urban Transformations Hub, Monash University Indonesia, Green Office Park 9, The Breeze, BSD City, Tangerang Selatan, Banten, 15345, Indonesia.
| | - Michelle Ang Li Ern
- Landscape Ecology and Conservation Lab, School of Environmental and Geographical Sciences, University of Nottingham Malaysia, Semenyih, 43500, Malaysia.
| | - Éléonore Lèbre
- Sustainable Minerals Institute, The University of Queensland, Brisbane, QLD, 4072, Australia.
| | - Gavin M Mudd
- Environmental Engineering, School of Engineering, RMIT University, Melbourne, VIC, Australia.
| | - Mark G Macklin
- Lincoln Centre for Water and Planetary Health, School of Geography, University of Lincoln, Lincoln, LN6, 7TS, UK.
| | - Muhamad Risqi U Saputra
- Urban Transformations Hub, Monash University Indonesia, Green Office Park 9, The Breeze, BSD City, Tangerang Selatan, Banten, 15345, Indonesia.
| | - Tahjudil Witra
- Urban Transformations Hub, Monash University Indonesia, Green Office Park 9, The Breeze, BSD City, Tangerang Selatan, Banten, 15345, Indonesia.
| | - Anthony Bebbington
- Graduate School of Geography, Clark University, 950 Main St, Worcester, MA, 01610, USA.
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Landires I, Castillero I, Ramos I, Núñez-Samudio V. Mining threatens health of Panama's environment. Science 2023; 382:1007-1008. [PMID: 38033073 DOI: 10.1126/science.adm7959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2023]
Affiliation(s)
- Iván Landires
- Instituto de Ciencias Médicas, Las Tablas, Los Santos, Panama
| | - Irene Castillero
- Departamento de Química Analítica, Universidad de Panama, Panama City, Panama, Panama
| | - Isaías Ramos
- Centro de Incidencia Ambiental de Panama (CIAM), Panama City, Panama, Panama
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