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Song Y, Yang Z. Vertical distributions and potential contamination assessment of seldom monitored trace elements in three different land use types of Yellow River Delta. Mar Pollut Bull 2024; 199:116033. [PMID: 38219293 DOI: 10.1016/j.marpolbul.2024.116033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 01/06/2024] [Accepted: 01/08/2024] [Indexed: 01/16/2024]
Abstract
The Yellow River Delta (YRD) is the second largest petrochemical base in China and the impact of human activities has been continuously increasing in recent decades, however, the contamination status of seldom monitored trace elements (SMTEs) in YRD has rarely been reported. This study evaluated the levels, vertical distributions, contamination status and sources of SMTEs in soil samples of three different land use types in YRD. The results indicated that the vertical distributions of SMTEs contents showed a gradually upward increasing trend for the soil profiles of black locust forest, while the SMTEs contents displayed a gradually upward decreasing trend for the soil profiles of cotton field. However, the SMTEs contents in the oil field area showed no significant difference among different depths. The vertical distributions of SMTEs were very likely related to the anthropogenic disturbance in the later stage. The environmental pollution status assessment of SMTEs showed obvious enrichment of Cs, Sn, and U in the soils of YRD. Moreover, the potential source analysis based on multivariate statistical methods indicated that Ga, Rb, Cs, Sc, Sn, Tl, Be, Bi, Ca and Mo were clustered together and positively correlated with Al, Fe, Mg and K, and may be mainly associated with geochemical weathering process, while the Ce, La, Th, U, Nb, Ta, and Hf may be impacted by both natural process and human activities. Though the SMTEs pollution status was not very serious, our results highlighted the non-negligible influence of anthropogenic activities on vertical distributions of SMTEs in three different land use types from YRD. Our results provide valuable information for understanding the vertical distribution and pollution status of SMTEs in YRD.
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Affiliation(s)
- Yingqiang Song
- School of Civil Engineering and Geomatics, Shandong University of Technology, Zibo 255000, China
| | - Zhongkang Yang
- College of Resources and Environment, Key Laboratory of Agricultural Environment in Universities of Shandong, Shandong Agricultural University, Tai'an 271000, China.
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2
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Chi H, Liu X, Yang X, Zhang R, Xia T, Sun Y, Hu K, Hao F, Liu Y, Yang S, Deng Q, Wen X. Risk assessment and source identification of soil heavy metals: a case study of farmland soil along a river in the southeast of a mining area in Southwest China. Environ Geochem Health 2024; 46:39. [PMID: 38227107 DOI: 10.1007/s10653-023-01803-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 11/21/2023] [Indexed: 01/17/2024]
Abstract
To investigate the heavy metals (HMs) contamination of surface farmland soil along the river in the southeast of a mining area in southwest China and identify the contamination sources, 54 topsoil samples were collected and the concentrations of seven elements (Zn, Ni, Pb, Cu, Hg, Cr, and Co) were determined by inductively coupled plasma optical emission spectrometry (ICP-OES) and atomic fluorescence spectrometry (AFS). The geo-accumulation index ([Formula: see text]) and comprehensive potential ecological risk index ([Formula: see text]) were used for analysis to determine the pollution degree of HMs and the risk level of the study area. Meanwhile, the Positive Matrix Factorization (PMF) model was combined with a variety of statistical methods to determine the sources of HMs. To explore the influence of the river flowing through the mining area on the concentrations of HMs in the farmland soil, 15 water samples were collected and the concentrations of the above seven elements were determined. The results showed that the concentrations of Pb, Cu, and Zn in soil all exceeded the risk screening value, and Pb in soil of some sampling sites exceeded control value of "Agricultural Land Soil Pollution Risk Control Standard".[Formula: see text] showed that Pb was heavily contaminated, while Cu and Zn were moderately contaminated. RI showed that the study area was at moderate risk. PMF and various statistical methods showed that the main source of HMs was the industrial source. In the short term, the river flowing through the mine has no significant influence on the concentration of HMs in the soil. The results provide a reference for the local government to control contamination and identify the sources of HMs.
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Affiliation(s)
- Huajian Chi
- College of Pharmacy, Dali University, Dali, 671000, Yunnan, China
| | - Xin Liu
- College of Pharmacy, Dali University, Dali, 671000, Yunnan, China
| | - Xiaofang Yang
- College of Chemistry, Sichuan University, Chengdu, 610064, Sichuan, China
| | - Rui Zhang
- College of Pharmacy, Dali University, Dali, 671000, Yunnan, China
| | - Ting Xia
- College of Pharmacy, Dali University, Dali, 671000, Yunnan, China
| | - Yiping Sun
- College of Pharmacy, Dali University, Dali, 671000, Yunnan, China
| | - Kan Hu
- College of Pharmacy, Dali University, Dali, 671000, Yunnan, China
| | - Fangfang Hao
- College of Pharmacy, Dali University, Dali, 671000, Yunnan, China
| | - Yong Liu
- College of Pharmacy, Dali University, Dali, 671000, Yunnan, China
| | - Shengchun Yang
- College of Pharmacy, Dali University, Dali, 671000, Yunnan, China
| | - Qingwen Deng
- College of Pharmacy, Dali University, Dali, 671000, Yunnan, China
| | - Xiaodong Wen
- College of Pharmacy, Dali University, Dali, 671000, Yunnan, China.
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Shang W, Yang M, Han Z, Chen X. Distribution, contamination assessment, and sources of heavy metals in surface sediments from the south of the North Yellow Sea, China. Mar Pollut Bull 2023; 196:115577. [PMID: 37793271 DOI: 10.1016/j.marpolbul.2023.115577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 09/14/2023] [Accepted: 09/20/2023] [Indexed: 10/06/2023]
Abstract
This paper reports the contents of six heavy metals and particle sizes in the surface sediments of 120 sampling stations in the southern North Yellow Sea to reveal heavy metal distribution characteristics, contamination assessment, and sources. Cu and Cr enrichments were mainly found in coastal areas with high mud content (silt and clay). However, Zn, Cd, Pb, and Hg were enriched in Weihai Bay and Dongpu Bay, which have denser populations, estuaries, and shipyards. The geoaccumulation index and principal component analysis showed that Cu and Cr contamination was low, and the sources were mainly natural processes. In addition, Zn and Cd pollution in the nearshore area was moderate, and its provenance was natural processes and human activity. However, most areas exhibited Pb and Hg contamination due to waterborne traffic and industries, including shipbuilding and gold mining.
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Affiliation(s)
- Wei Shang
- No. 6 Geological Team of Shandong Provincial Bureau of Geology and Mineral Resources, Weihai 264209, China; Ministry of Natural Resources Technology Innovation Center for Deep Gold Resources Exploration and Mining, Weihai 264209, China; Shandong Provincial Engineering Laboratory of Application and Development of Big Data for Deep Gold Exploration, Weihai 264209, China
| | - Mingshuang Yang
- No. 6 Geological Team of Shandong Provincial Bureau of Geology and Mineral Resources, Weihai 264209, China; Ministry of Natural Resources Technology Innovation Center for Deep Gold Resources Exploration and Mining, Weihai 264209, China; Shandong Provincial Engineering Laboratory of Application and Development of Big Data for Deep Gold Exploration, Weihai 264209, China
| | - Zhong Han
- No. 6 Geological Team of Shandong Provincial Bureau of Geology and Mineral Resources, Weihai 264209, China; Ministry of Natural Resources Technology Innovation Center for Deep Gold Resources Exploration and Mining, Weihai 264209, China; Shandong Provincial Engineering Laboratory of Application and Development of Big Data for Deep Gold Exploration, Weihai 264209, China.
| | - Xiaohui Chen
- Qingdao Institute of Marine Geology, China Geological Survey, Qingdao 266237, China
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Fei X, Lou Z, Lv X, Ren Z, Xiao R. Pollution threshold assessment and risk area delineation of heavy metals in soils through the finite mixture distribution model and Bayesian maximum entropy theory. J Hazard Mater 2023; 452:131231. [PMID: 36934631 DOI: 10.1016/j.jhazmat.2023.131231] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 03/13/2023] [Accepted: 03/15/2023] [Indexed: 06/18/2023]
Abstract
Pollution threshold and high-risk area determination for heavy metals is important for effectively developing pollution control strategies. Based on heavy metal contents in 3627 dense samples, an integrated framework combining the finite mixture distribution model and Bayesian maximum entropy (BME) theory was proposed to assess pollution thresholds, contamination levels and risk areas in an uncertain environment for soil heavy metals. The results showed that the average heavy metal contents were in the order Zn > Cr > Pb > Cu > Ni > As > Cd > Hg, with strong/moderate variation, and the corresponding pollution thresholds were 158.39, 84.29, 47.84, 49.75, 28.95, 18.01, 0.49 and 0.16 mg/kg, respectively. The thresholds were consistently greater than the Zhejiang Province backgrounds but lower than the national risk screening values, except for Cd. Approximately 27.9% of the samples were classified as contaminated at various levels, and they were distributed in the northern, northwestern and eastern regions of the study area. Additionally, 3.73%, 5.34% and 8.22% of the total area were classified as at-risk areas under confidence levels of 95%, 90% and 75%, respectively, through BME theory. The findings provide a reasonable classification system and suggestions for heavy metal pollution management and control.
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Affiliation(s)
- Xufeng Fei
- Zhejiang Academy of Agricultural Sciences, Hangzhou, China; Key Laboratory of Information Traceability of Agriculture Products, Ministry of Agriculture and Rural Affairs, China
| | - Zhaohan Lou
- Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Xiaonan Lv
- Zhejiang Academy of Agricultural Sciences, Hangzhou, China; Key Laboratory of Information Traceability of Agriculture Products, Ministry of Agriculture and Rural Affairs, China
| | - Zhouqiao Ren
- Zhejiang Academy of Agricultural Sciences, Hangzhou, China; Key Laboratory of Information Traceability of Agriculture Products, Ministry of Agriculture and Rural Affairs, China.
| | - Rui Xiao
- School of Remote Sensing and Information Engineering, Wuhan University, Wuhan, China
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Wu Z, Dong Y, Liu R, Liu L, Gao J, Song W, Zhang S, Qiu J. Assessment of heavy metal contamination in surface sediments off the Dongying coast, Bohai Sea. Mar Pollut Bull 2022; 180:113826. [PMID: 35696894 DOI: 10.1016/j.marpolbul.2022.113826] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 06/04/2022] [Accepted: 06/05/2022] [Indexed: 06/15/2023]
Abstract
In this study, 214 surface sediment samples were collected from the offshore area of the Dongying coast and were analysed for heavy metals; particularly, their concentrations and pollution status were evaluated. The copper (Cu) and chromium (Cr) distributions were similar, their concentrations were the highest in the northeast areas and the Xiaoqing River estuary, where dominated by fine-grained sediments. Higher concentrations of lead (Pb), zinc (Zn), cadmium (Cd), and arsenic (As) were generally found in the offshore area of the study location, and the highest Cd concentration was observed in the Xiaoqing River estuary. The sediments were not polluted by Cu, Pb, Zn, and Cr; they were not polluted or moderately polluted by Cd and As. Results of the principal component analysis indicated that Cu, Pb, Zn, and Cr were derived from natural sources and Cd and As were derived from anthropogenic sources.
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Affiliation(s)
- Zhen Wu
- Shandong Provincial No. 4 Institute of Geological and Mineral Survey, Weifang 261021, PR China; Key Laboratory of Coastal Zone Geological Environment Protection, Shandong Geology and Mineral Exploration and Development Bureau, Weifang 261021, PR China
| | - Yingwei Dong
- Shandong Provincial No. 4 Institute of Geological and Mineral Survey, Weifang 261021, PR China; Key Laboratory of Coastal Zone Geological Environment Protection, Shandong Geology and Mineral Exploration and Development Bureau, Weifang 261021, PR China
| | - Rongbo Liu
- Shandong Provincial No. 4 Institute of Geological and Mineral Survey, Weifang 261021, PR China
| | - Longlong Liu
- Yantai Center of Coastal Geological Survey, China Geological Survey, Yantai 264000, PR China.
| | - Junfeng Gao
- Yantai Center of Coastal Geological Survey, China Geological Survey, Yantai 264000, PR China
| | - Wei Song
- Shandong Provincial No. 4 Institute of Geological and Mineral Survey, Weifang 261021, PR China
| | - Shengjiang Zhang
- Yantai Center of Coastal Geological Survey, China Geological Survey, Yantai 264000, PR China
| | - Jiandong Qiu
- Qingdao Institute of Marine Geology, China Geological Survey, Qingdao 266071, PR China
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Li L, Zhang B, Jiang B, Zhao Y, Qian G, Hu X. Potentially toxic elements in weathered waste-rocks of Fushun western opencast mine: distribution, source identification, and contamination assessment. Environ Geochem Health 2022; 44:1813-1826. [PMID: 34839392 DOI: 10.1007/s10653-021-01161-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2021] [Accepted: 11/12/2021] [Indexed: 06/13/2023]
Abstract
To understand the current status of the contamination of potentially toxic elements (PTEs) after closing the Fushun Western Opencast Mine, this study has focused on the concentration, contamination assessment, and source identification of eight PTEs in weathered waste-rocks in four distinct areas of the mine. The mean concentrations of Ni, Cr, Zn, Cu, Pb, Hg, Cd, and As were 79.4, 86.3, 126, 64.8, 16.9, 1.04, 1.94, and 6.27 mg kg-1, respectively. The results demonstrated that Ni, Cr, Zn, Cu, Pb, Hg, Cd, and As were contaminated to different extents in different weathered waste-rocks and waste-rocks, among which there was considerable Cd contamination. Coal gangue area (CGA) exhibited the most polluted weathered waste-rocks, which can be attributed to severe pollution and moderate ecological hazards. Self-combustion gangue (SCG) contamination of waste-rocks was considerably serious and caused severe pollution and considerable ecological harm. Health risk assessments demonstrated that Hg had the highest non-carcinogenic risk. Ingestion of PTEs was found to be a primary route of exposure, while dermal and inhalation exposure was negligible. Principal component analysis (PCA) demonstrated that there were roughly three sources of PTEs in the weathered waste-rocks of the mine, natural sources related to the weathering of parent rocks, and human sources, including industrial emissions, mining activities, and atmospheric dust deposition and resuspension. This study advances our knowledge of PTEs in mines and provides policymakers with a reference for designing strategies to protect mine-based ecosystems.
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Affiliation(s)
- Liang Li
- Key Laboratory of Ministry of Education on Safe Mining of Deep Metal Mines, Northeastern University, Shenyang, 110819, People's Republic of China
| | - Bo Zhang
- Key Laboratory of Ministry of Education on Safe Mining of Deep Metal Mines, Northeastern University, Shenyang, 110819, People's Republic of China.
| | - Binhui Jiang
- Key Laboratory of Ministry of Education on Safe Mining of Deep Metal Mines, Northeastern University, Shenyang, 110819, People's Republic of China
| | - Yan Zhao
- Key Laboratory of Ministry of Education on Safe Mining of Deep Metal Mines, Northeastern University, Shenyang, 110819, People's Republic of China
| | - Guangsheng Qian
- Department of Civil and Environmental Engineering, Faculty of Science and Technology, University of Macau, Macau, People's Republic of China
| | - Xiaomin Hu
- Key Laboratory of Ministry of Education on Safe Mining of Deep Metal Mines, Northeastern University, Shenyang, 110819, People's Republic of China
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Mohammed S, Mohammed FK. Pollution characteristics, risk assessment, and source apportionment of potentially toxic elements in road dust at two industrial parks in Trinidad and Tobago, West Indies. Environ Monit Assess 2022; 194:445. [PMID: 35604459 DOI: 10.1007/s10661-022-10109-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 05/15/2022] [Indexed: 06/15/2023]
Abstract
Potentially toxic elements can enter the environment through natural and anthropogenic processes, with the latter considered the primary contributor. Road dust samples from two industrial parks on the island of Trinidad were investigated for heavy metal content, and the pollution status, potential health risks, and source apportionment were evaluated. Samples were acid-digested and analysed by flame atomic absorption spectroscopy. The average levels of cadmium, chromium, copper, manganese, nickel, lead, and zinc in road dust at the Frederick Settlement Industrial Park were 1.14 μg/g, 15.13 μg/g, 66.42 μg/g, 768.49 μg/g, 37.95 μg/g, 55.90 μg/g, and 573.04 μg/g, respectively, while average concentrations at the O'Meara Industrial Park were 1.20 μg/g, 16.97 μg/g, 42.72 μg/g, 482.65 μg/g, 21.12 μg/g, 136.77 μg/g, and 358.70 μg/g, respectively. Contamination assessments evaluated both Fredrick Settlement and O'Meara as typically uncontaminated to moderately polluted, with the overall ecological risk deemed low at all locations. Hazard index values at all sampling areas were lower than 1, indicating no potential non-carcinogenic risks to children or adults, while the carcinogenic exposure risks for cadmium, chromium, and nickel were considered low. Principal component analysis and cluster analysis revealed two main sources of contamination for Fredrick Settlement, and three main sources for O'Meara. Based on the groupings obtained, the presence of potentially toxic elements was attributed primarily to specific anthropogenic activities within the industrial parks, with lesser contributions from vehicular-related sources.
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Affiliation(s)
- Saleema Mohammed
- Department of Chemistry, The University of the West Indies, St. Augustine, Trinidad and Tobago
| | - Faisal K Mohammed
- Department of Chemistry, The University of the West Indies, St. Augustine, Trinidad and Tobago.
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Zeng J, Han G, Zhang S, Liang B, Qu R, Liu M, Liu J. Potentially toxic elements in cascade dams-influenced river originated from Tibetan Plateau. Environ Res 2022; 208:112716. [PMID: 35026184 DOI: 10.1016/j.envres.2022.112716] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Revised: 01/06/2022] [Accepted: 01/07/2022] [Indexed: 06/14/2023]
Abstract
Rivers originated from Tibetan Plateau are of great significance due to their environmental sensibility and fragility. However, the pollution of suspended particulate matter (SPM) in these rivers is rarely reported, in particular, the potentially toxic elements (PTEs) contamination. To clarify the status, sources, behavior, and risks of PTEs in SPM, a full investigation was conducted in dams-influenced Lancangjiang River basin. The findings revealed that the PTEs content (mg kg-1) ranked Mn (766) > V (151.7) > Zn (131.0) > Cr (94.6) > Ni (44.2) > Pb (36.7) > Cu (29.4) > Co (14.6) > Sb (2.6) > Mo (1.6) > Tl (0.78) > Cd (0.48). The multi-index assessment suggested that Sb and Cd were moderately severe to severe enriched PTEs with the enrichment factor values of 10.0 and 8.8 and the geo-accumulation index values of 2.2 and 2.0, respectively, while the rest of PTEs were minor/no enrichment. In contrast, Cr and Ni were major toxic elements in SPM which contributed 25 ± 10%, 24 ± 8% to the total toxic risk index. The high partition coefficients (e.g., 6.1 for Cr) were observed in most PTEs and resulted in the 96.3% of Cr, 85.2% of Zn, 83.6% of Pb, 77.8% of Ni, and 63.2% of Cu transportation in the SPM form. Natural inputs (e.g., soil erosion) are the main source (53.6%∼61.9%) of V, Cr, Mn, Co, Ni, and Tl, while fuel burning contributed 40.9% of Zn, 32.5% of Pb, and 37.3% of Cd. Moreover, 51.2% of Sb was attributed to industrial waste source, while porphyry copper/molybdenum deposits related milltailings were the co-source of Mo (54.4%) and Cu (34.8%). Overall, the PTEs geochemistry of SPM showed the potential in tracing regional environmental change.
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Affiliation(s)
- Jie Zeng
- Institute of Earth Sciences, China University of Geosciences (Beijing), Beijing, 100083, China
| | - Guilin Han
- Institute of Earth Sciences, China University of Geosciences (Beijing), Beijing, 100083, China.
| | - Shitong Zhang
- Institute of Earth Sciences, China University of Geosciences (Beijing), Beijing, 100083, China
| | - Bin Liang
- Institute of Earth Sciences, China University of Geosciences (Beijing), Beijing, 100083, China
| | - Rui Qu
- Institute of Earth Sciences, China University of Geosciences (Beijing), Beijing, 100083, China
| | - Man Liu
- Institute of Earth Sciences, China University of Geosciences (Beijing), Beijing, 100083, China
| | - Jinke Liu
- Institute of Earth Sciences, China University of Geosciences (Beijing), Beijing, 100083, China
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Zhang H, Liu S, Ai L, Cao P, Wu K, Cui J, Wang H, Mohamed CAR, Shi X. Distribution and assessment of heavy metal in sediments of Malacca Strait. Mar Pollut Bull 2022; 178:113575. [PMID: 35334328 DOI: 10.1016/j.marpolbul.2022.113575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 02/26/2022] [Accepted: 03/14/2022] [Indexed: 06/14/2023]
Abstract
In this study, we explored the heavy metal elements in 42 surface sediments from the Malacca Strait in terms of distribution, controlling factors, environmental quality, and primary sources. An analysis of grain size revealed finer sediments near the coast of Malaysia, which gradually thickened toward offshore. In addition, heavy metal elements were abundantly distributed near the coastal area of Malaysia, with a gradual decrease toward the sea; their content increased within waters close to the Perak estuary. Source analysis of heavy metals showed that Cr, Hg, Zn, Cd, and Cu were mostly derived from natural weathering, and their distribution was significantly influenced by sediment grain size. As and Pb were affected by human activities. The environmental quality assessment results showed that Cu, Cr, Cd, and Zn in our study regions were pollution-free. Pb elements showed low-to-moderate pollution, and Hg showed a certain degree of ecological risk due to its high toxicity coefficient. The content of As elements in surface sediments increased significantly when compared to the background value, with several evaluation methods indicating a high-risk index. According to these findings, the area near the mouth of the Perak River is the most polluted, followed by the surrounding coastal areas.
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Affiliation(s)
- Hui Zhang
- Key Laboratory of Marine Geology and Metallogeny, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Shengfa Liu
- Key Laboratory of Marine Geology and Metallogeny, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266061, China.
| | - Lina Ai
- Key Laboratory of Marine Geology and Metallogeny, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Peng Cao
- Key Laboratory of Marine Geology and Metallogeny, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Kaikai Wu
- Key Laboratory of Marine Geology and Metallogeny, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; Ocean College, Zhejiang University, Zhoushan 316021, China
| | - Jingjing Cui
- Key Laboratory of Marine Geology and Metallogeny, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Hongmin Wang
- Key Laboratory of Marine Geology and Metallogeny, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Che Abd Rahim Mohamed
- Faculty of Science and Technology, National University of Malaysia, Selangor 43600, Malaysia
| | - Xuefa Shi
- Key Laboratory of Marine Geology and Metallogeny, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266061, China
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R. JB, S. B, J.A. A, C. PDLR, J. GP, M. S, F.J. GN. Occurrence of some rare earth elements in vineyard soils under semiarid Mediterranean environment. Environ Monit Assess 2022; 194:341. [PMID: 35389127 PMCID: PMC8989820 DOI: 10.1007/s10661-022-09956-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 03/12/2022] [Indexed: 06/14/2023]
Abstract
A comprehensive investigation has been carried out into the concentrations of a range of REEs (neodymium Nd, cerium Ce, lanthanum La, yttrium Y, scandium Sc) in soils of vineyards belonging to the protected denomination of origin (PDO) Valdepeñas (Central Spain). The mean concentrations (expressed in mg kg-1) are Ce 70.6, Nd 32.9, La 36.2, Y 21.6, and Sc 13.7 in surface horizons (Ap), while in subsurface horizons (Bt or Bw and some Ck), the values are Ce 67.6, Nd 31.8, La 34.4, Y 19.6, and Sc 13.9. The relative abundance in these soils is Ce > La > Nd > Y > Sc in both the surface and subsurface horizons. These values are close to, or slightly higher than, the regional levels but similar to national and global averages, although relatively high values have been detected at certain sampling points. Another aim was to explain the spatial variations in these elements within the territory under study. It was found that the spatial variations are due to the nature of the parent materials and the pedogenetic processes, although the sparse spatial distribution patterns with prominent anomalies are interpreted arising from anthropogenic sources (fertilization). However, these anomalies did not present any environmental risk in the studied zone.
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Affiliation(s)
- Jiménez-Ballesta R.
- Deparment of Geology and Geochemistry, Autónoma University of Madrid, Madrid, Spain
| | - Bravo S.
- Higher Technical School Agricultural Engineers of Ciudad Real, University of Castilla-La Mancha, Ciudad Real, Spain
| | - Amorós J.A.
- Higher Technical School Agricultural Engineers of Ciudad Real, University of Castilla-La Mancha, Ciudad Real, Spain
| | - Pérez-de-los-Reyes C.
- Higher Technical School Agricultural Engineers of Ciudad Real, University of Castilla-La Mancha, Ciudad Real, Spain
| | - García-Pradas J.
- Higher Technical School Agricultural Engineers of Ciudad Real, University of Castilla-La Mancha, Ciudad Real, Spain
| | - Sanchez M.
- Higher Technical School Agricultural Engineers of Ciudad Real, University of Castilla-La Mancha, Ciudad Real, Spain
| | - García-Navarro F.J.
- Higher Technical School Agricultural Engineers of Ciudad Real, University of Castilla-La Mancha, Ciudad Real, Spain
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Han R, Xu Z. Spatial distribution and ecological risk assessment of heavy metals in karst soils from the Yinjiang County, Southwest China. PeerJ 2022; 10:e12716. [PMID: 35178289 PMCID: PMC8815369 DOI: 10.7717/peerj.12716] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 12/09/2021] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Soil heavy metals (HMs) under different land-use types have diverse effects, which may trigger the ecological risk. To explore the potential sources of HMs in karst soils, the spatial distribution and geochemical behavior of HMs based on different land-use types are employed in this study. METHODS Soil samples (n = 47) were collected in three suites of karst soil profiles from the secondary forest, abandoned cropland and shrubland in Yinjiang, Southwest China. The concentrations of Ni, Mn, Cr, Pb, Cd and Mo were determined to give a comprehensive understanding of the possible sources of these HMs and evaluate the potential ecological risk in Yinjiang County. RESULTS The mean concentrations of HMs in all profiles followed the same order: Mn > Cr > Ni > Pb > Mo > Cd. Meanwhile, the concentrations of most HMs roughly increased with the depth. Additionally, the concentrations of HMs were mostly correlated with soil pH and SOC, rather than with clay and silt proportions. By contrast, with the enrichment factors (EF), geo-accumulation (Igeo) and potential ecological risk index (PERI) of HMs in soil under different land-use types, the results indicated that these HMs exhibited non-pollution (Igeo < 0) and no ecological risk (PERI < 30) to human health in soils of Yinjiang County. CONCLUSIONS The distribution of HMs is dominated by weathering in the karst area, and the effects of agricultural inputs on the enrichment of soil HMs in Yinjiang County are limited. This further state that the arrangement of the local agricultural structure is reasonable.
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Affiliation(s)
- Ruiyin Han
- Institute of Geology and Geophysics, Chinese Academy of Sciences (CAS), Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Zhifang Xu
- Institute of Geology and Geophysics, Chinese Academy of Sciences (CAS), Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
- Chinese Academy of Sciences, Center for Excellence in Life and Paleoenvironment, Beijing, China
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12
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Liu Y, Sun J, Zhao M, Ni Y, Wang X, Fan Z. Seasonal Variation and Contamination Risk Assessment of Heavy Metals in Surface Sediment of an Estuary Alluvial Island in Eastern China. Bull Environ Contam Toxicol 2022; 108:337-343. [PMID: 35083496 DOI: 10.1007/s00128-021-03413-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Accepted: 10/13/2021] [Indexed: 06/14/2023]
Abstract
The heavy metal pollution of estuary wetlands caused by industrial and agricultural production activities has aroused widespread concern. The Hakanson Pollution index, Geo-accumulation index (Igeo) and Redundancy analysis were used to explore the seasonal variation and contamination risk of heavy metals in surface sediments. Results showed that the heavy metal concentrations were ranked in descending order: Cd > Cu > Zn > Pb > Cr. The analysis result of HPI and Igeo showed that there was a low level of heavy metal contamination both in summer and winter. Redundancy analysis showed that the correlation between heavy metals and physicochemical properties of sediment was significantly different in winter and summer. Our findings provide scientific support for the prevention of heavy metal pollution in estuary wetlands.
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Affiliation(s)
- Yafeng Liu
- Anhui Academy of Environmental Science, Hefei, 230022, China
- Department of Environmental Science and Engineering, Fudan University, Shanghai, 200433, China
| | - Jiaxun Sun
- Department of Environmental Science and Engineering, Fudan University, Shanghai, 200433, China
| | - Menglu Zhao
- Department of Environmental Science and Engineering, Fudan University, Shanghai, 200433, China
| | - Yiyao Ni
- Department of Environmental Science and Engineering, Fudan University, Shanghai, 200433, China
| | - Xiangrong Wang
- Department of Environmental Science and Engineering, Fudan University, Shanghai, 200433, China
| | - Zhengqiu Fan
- Department of Environmental Science and Engineering, Fudan University, Shanghai, 200433, China.
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13
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Ben Mna H, Helali MA, Oueslati W, Amri S, Aleya L. Spatial distribution, contamination assessment and potential ecological risk of some trace metals in the surface sediments of the Gulf of Tunis, North Tunisia. Mar Pollut Bull 2021; 170:112608. [PMID: 34153854 DOI: 10.1016/j.marpolbul.2021.112608] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 06/03/2021] [Accepted: 06/04/2021] [Indexed: 06/13/2023]
Abstract
To evaluate the trace metals contamination status in the Gulf of Tunis, forty one sediment samples were analyzed using different approaches. According to certain contamination and ecological risk indices (Contamination Factor, Geoaccumulation index and Ecological risk index), Hg has the highest contamination level while pollution by Ni, Pb, Cd and Cr was absent. The highest concentrations of trace metals were found in sediments collected from the offshore and coastal areas located opposite the main exchange points with the gulf particularly, the Mejerda and Meliane Rivers, the Khalij Channel, Ghar El Melh and El Malah lagoons, Tunis Lake and Sebkhat Ariana. However, further ecological indices (Potential ecological risk index, Toxic unit and Mean effect-range median quotient) and comparison with sediment quality guidelines suggest that in addition to Mercury, Cr, Pb and Ni concentrations are detrimental to biota in both the offshore and areas near to the exchange points with the gulf. Moreover, in these areas the results from sequential extraction and individual contamination factor calculation pointed to the mobility and bioavailability of Cr, Pb and Ni.
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Affiliation(s)
- Haïfa Ben Mna
- Laboratoire des Ressources Minérales et Environnement, Département de Géologie, Faculté des Sciences de Tunis, Université Tunis-El Manar, 2092, Tunisia.
| | - Mohamed Amine Helali
- Laboratoire des Ressources Minérales et Environnement, Département de Géologie, Faculté des Sciences de Tunis, Université Tunis-El Manar, 2092, Tunisia
| | - Walid Oueslati
- Laboratoire des Ressources Minérales et Environnement, Département de Géologie, Faculté des Sciences de Tunis, Université Tunis-El Manar, 2092, Tunisia
| | - Sirine Amri
- Laboratoire des Ressources Minérales et Environnement, Département de Géologie, Faculté des Sciences de Tunis, Université Tunis-El Manar, 2092, Tunisia
| | - Lotfi Aleya
- Université de Bourgogne Franche-Comté, Laboratoire de Chrono-Environnement, UMR CNRS 6249, La Bouloie, F-25030 Besançon Cedex, France
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14
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Zhang H, Liu S, Wu K, Cui J, Zhu A, Zhang Y, Mohamed CAR, Shi X. Distribution and assessment of heavy metal contents in surface sediments of the western Sunda Shelf. Mar Pollut Bull 2021; 168:112433. [PMID: 33962084 DOI: 10.1016/j.marpolbul.2021.112433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 04/20/2021] [Accepted: 04/26/2021] [Indexed: 06/12/2023]
Abstract
The heavy metal contents (Cr, Cu, Zn, Cd, Pb, Hg, and As) of 88 surface sediment samples from the western Sunda Shelf were analyzed to determine their spatial distribution patterns and contamination status. The results demonstrated that high enrichment regions of heavy metals were focused in the Kelantan, Pahang, and Ambat river estuaries, and deep water regions of the study area. These high enrichment regions were mainly controlled by riverine inputs and their hydrodynamic conditions. The enrichment factor (EF), geoaccumulation index (Igeo), and potential ecological risk index (PERI) were used to assess heavy metal accumulation. The results indicated that the study area was not significantly contaminated overall at the time of the study; however, Cd, As, and Hg were at levels corresponding to moderate contamination at many stations located in the Pahang River estuary, Kelantan River estuary, and north-eastern region of the study area, primarily because of anthropogenic activities.
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Affiliation(s)
- Hui Zhang
- Key Laboratory of Marine Geology and Metallogeny, Ministry of Natural Resources, Qingdao 266061, China
| | - Shengfa Liu
- Key Laboratory of Marine Geology and Metallogeny, Ministry of Natural Resources, Qingdao 266061, China; Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266061, China.
| | - Kaikai Wu
- Key Laboratory of Marine Geology and Metallogeny, Ministry of Natural Resources, Qingdao 266061, China; Ocean College, Zhejiang University, Zhoushan 316021, China
| | - Jingjing Cui
- Key Laboratory of Marine Geology and Metallogeny, Ministry of Natural Resources, Qingdao 266061, China
| | - Aimei Zhu
- Key Laboratory of Marine Geology and Metallogeny, Ministry of Natural Resources, Qingdao 266061, China
| | - Ying Zhang
- Key Laboratory of Marine Geology and Metallogeny, Ministry of Natural Resources, Qingdao 266061, China
| | - Che Abd Rahim Mohamed
- Faculty of Science and Technology, National University of Malaysia, Selangor 43600, Malaysia
| | - Xuefa Shi
- Key Laboratory of Marine Geology and Metallogeny, Ministry of Natural Resources, Qingdao 266061, China; Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266061, China
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15
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Liu J, Peng A, Deng S, Liu M, Liu G, Li C. Distribution of heavy metals and radionuclides in the sediments and their environmental impacts in Nansha Sea area, South China Sea. Mar Pollut Bull 2021; 166:112192. [PMID: 33744805 DOI: 10.1016/j.marpolbul.2021.112192] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 02/08/2021] [Accepted: 02/18/2021] [Indexed: 06/12/2023]
Abstract
Activity concentrations of radionuclides (238U, 226Ra, 232Th, and 40K) in the sediments of eight sampling stations and heavy metal concentrations (Cr, Co, Ni, Cu, Zn, As, Cd, and Pb) in the sediments of two long cores from Nansha Sea area were obtained by high-purity germanium spectroscopy and inductively coupled plasma atomic emission spectrometry. In a correlation analysis between the radionuclides and heavy metals, 232Th was positively correlated with As and Pb. 238U demonstrated a significant positive correlation with Co, Ni, Cu, Zn, and Cd. 40K was positively correlated with Co, Ni, and Cu. The geo-accumulation index, pollution load index, potential ecological risk index, and multivariate statistical techniques were used to evaluate the pollution degree and possible sources of heavy metals in the sediments. An ecological risk assessment suggested that Cr, Co, Ni, Cu, Zn, Cd, and Pb were primarily derived from natural processes, while the source of As may be related to natural processes and human activities.
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Affiliation(s)
- Jing Liu
- School of Nuclear Science and Technology, University of South China, Hengyang 421001, China
| | - Anguo Peng
- School of Nuclear Science and Technology, University of South China, Hengyang 421001, China.
| | - Shuang Deng
- School of Nuclear Science and Technology, University of South China, Hengyang 421001, China
| | - Min Liu
- School of Nuclear Science and Technology, University of South China, Hengyang 421001, China
| | - Guangshan Liu
- College of the Environment and Ecology, Xiamen University, Xiamen 361005, China
| | - Chao Li
- College of the Environment and Ecology, Xiamen University, Xiamen 361005, China
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16
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Qiu S, Bing H, Zhong Z, Wu Y. Altitudinal-modulated sediment inputs rather than the land-uses determine the distribution of lead in the riparian soils of the Three Gorges Reservoir. Environ Geochem Health 2021; 43:1123-1136. [PMID: 32323171 DOI: 10.1007/s10653-020-00579-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Accepted: 04/10/2020] [Indexed: 06/11/2023]
Abstract
Lead (Pb) as a toxic metal has potential ecological hazards for aquatic quality. However, the variation in the distribution patterns of Pb and its fractions in flooding soils with frequent and anti-seasonal water-level fluctuation and various human disturbances remains unclear. In this study, the distribution of Pb and its fractions in the riparian soils of the Three Gorges Reservoir (TGR) were delineated based on the differences in altitude and land-uses including farmland, orchard, forest and residential area. Then, we assessed the contamination and eco-risk of Pb in the soils and deciphered the key factors determining the distribution of Pb and its fractions. The results showed that the concentrations of Pb and its fractions in the soils decreased significantly with altitude, while the significant difference was not observed among the land-uses. The contamination of Pb in the soils reached a moderate level, and its eco-risk was very low by the potential eco-risk index and mobile Pb fraction. The source of soil Pb at the upper zone (> 160 m) was mainly from natural inputs, while the source at the lower zone (≤ 160 m) was attributed to anthropogenic contributions including ores mining, fossil fuel combustion, vehicle emissions and atmospheric deposition indicated by Pb isotopic ratios. With the limited effect of land-uses, the sediment inputs regulated by frequent water-level fluctuation determined the altitudinal distribution of Pb and its fractions in the flooding soils. The soil particle size dominated the migration and transformation of Pb over other soil properties such as pH and organic matters. The results of this study indicate that the anthropogenic Pb mainly exists in the soils of lower riparian zone in the TGR, and the frequent and anti-seasonal dry and rewetting alternation aggravates the potential for the Pb migration downstream due to the determinant of soil particles.
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Affiliation(s)
- Shaojun Qiu
- The Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, 610041, China
- University of Chinese Academy of Sciences, Beijing, 10049, China
| | - Haijian Bing
- The Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, 610041, China.
| | - Zhilin Zhong
- The Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, 610041, China
- University of Chinese Academy of Sciences, Beijing, 10049, China
| | - Yanhong Wu
- The Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, 610041, China
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17
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Wang Z, Bing H, Zhu H, Wu Y. Fractions, Contamination and Health Risk of Cadmium in Alpine Soils on the Gongga Mountain, Eastern Tibetan Plateau. Bull Environ Contam Toxicol 2021; 106:86-91. [PMID: 33475791 DOI: 10.1007/s00128-020-03073-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 12/02/2020] [Indexed: 06/12/2023]
Abstract
Anthropogenic cadmium (Cd) in alpine soils is mainly from long-range atmospheric transport. Because of the high toxicity and mobility, whether the accumulation of Cd in the soils threats to ecosystem safety remains unclear. The fractions of soil Cd along three altitudinal transects on Gongga Mountain were analyzed to decipher the drivers on its mobility, and its contamination and health risk were assessed. The concentrations of Cd in the organic (O) and mineral (A) horizons were significantly higher on the eastern and southern transects than the western transect. The Cd fractions in the two horizons dominated by acid-soluble and reducible Cd. Soil organic matter and pH modulated the mobilization of soil Cd. Cadmium reached a moderate contamination level on the eastern and southern transects, but no or slight contamination on the western transect. The soil Cd had a low non-carcinogenic risk and no carcinogenic risk despite of adults or children.
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Affiliation(s)
- Zhiguo Wang
- The Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, 610041, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Haijian Bing
- The Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, 610041, China
| | - He Zhu
- The Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, 610041, China
| | - Yanhong Wu
- The Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, 610041, China.
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18
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Ren P, Zhu H, Sun Z, Wang C. Effects of Artificial Islands Construction on the Spatial Distribution and Risk Assessment of Heavy Metals in the Surface Sediments from a Semi-closed Bay (Longkou Bay), China. Bull Environ Contam Toxicol 2021; 106:44-50. [PMID: 33210211 DOI: 10.1007/s00128-020-03032-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 10/21/2020] [Indexed: 06/11/2023]
Abstract
Artificial islands construction can significantly influence the spatial distribution of heavy metals in inshore sediments. In this study, the distribution and contamination of heavy metals (Cd, Co, Cr, Cu, Ni, Pb, Zn, As and Hg) in inshore sediments of the Longkou Bay and artificial island adjacent areas were investigated in 2013 and 2014, respectively. Results showed that the contents of heavy metals increased in the Longkou Bay and decreased in the west of the artificial island in 2014 compared with 2013. The contamination and potential eco-risk of heavy metals in the sediments were higher in 2014 than those in 2013. Cd and Hg showed a high potential eco-risk in LK02, and other metals were in the lower level. The results indicated that after the construction of artificial islands in the Longkou Bay, the contamination and eco-risk of heavy metals in the sediments markedly increased in the Longkou Bay.
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Affiliation(s)
- Peng Ren
- Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266061, China
| | - He Zhu
- Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, 610041, China.
| | - Zhigao Sun
- Key Laboratory of Humid Subtropical Eco-geographical Process (Fujian Normal University), Ministry of Education, Fuzhou, 350007, China.
| | - Chuanyuan Wang
- Key Laboratory of Coastal Zone Environment Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, People's Republic of China
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19
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Zhijie L, Yi H, Wei Z, Zhangliang S, Daming Y, Yin C, Chao L, Rui W. Reducible Fraction Dominates the Mobility of Vanadium in Soil Around an Iron Smelter. Bull Environ Contam Toxicol 2020; 105:915-920. [PMID: 33140172 DOI: 10.1007/s00128-020-03029-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Accepted: 10/16/2020] [Indexed: 06/11/2023]
Abstract
Soil samples were collected to determine the pollution status, spatial distribution and mobility of Vanadium (V) in soil around an iron smelter in Panzhihua. The results showed that the topsoils and deep soils were unpolluted to moderately polluted and the subsurface soils was unpolluted with V. V concentrations in the topsoils decreased with the increase of the altitudes and the distances to the smelter. There was a great potential mobility of V in soil and the reductive dissolution of reducible V in the topsoils was responsible for the high concentration of V in the deep soils. Therefore, more attention should be paid to the reducible V when evaluating the mobility of V in soil.
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Affiliation(s)
- Long Zhijie
- Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, China
| | - Huang Yi
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Ecology and Environment, Chengdu University of Technology, Chengdu, 610059, Sichuan, China.
| | - Zhang Wei
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Ecology and Environment, Chengdu University of Technology, Chengdu, 610059, Sichuan, China
| | | | - Yu Daming
- Panzhihua Steel Group Mining Co. Ltd, Panzhihua, China
| | - Chen Yin
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Ecology and Environment, Chengdu University of Technology, Chengdu, 610059, Sichuan, China
| | - Liu Chao
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Ecology and Environment, Chengdu University of Technology, Chengdu, 610059, Sichuan, China
| | - Wang Rui
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Ecology and Environment, Chengdu University of Technology, Chengdu, 610059, Sichuan, China
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20
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Pan F, Yu Y, Yu L, Lin H, Wang Y, Zhang L, Pan D, Zhu R. Quantitative assessment on soil concentration of heavy metal-contaminated soil with various sample pretreatment techniques and detection methods. Environ Monit Assess 2020; 192:800. [PMID: 33263163 DOI: 10.1007/s10661-020-08775-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 11/23/2020] [Indexed: 06/12/2023]
Abstract
Detection and quantification of heavy metals in soil samples are significant in terms of environmental monitoring and risk assessment for metals. In order to improve the accuracy and precision to detect heavy metal, in this study, four standard samples (NASS-4, NASS-5, NASS-9, and NASS-16) were analyzed by evolving heating (electric heating plate, water bath, and microwave) and acidic systems (includes HCl, HNO3, HF, and HClO4). The result shows that different pretreatment methods have different effects on the extraction of heavy metal elements and five heavy metal elements (Cu, Zn, Pb, Ni, and Cr) were selected for optimization through pretreatment methods. Although the contents of heavy metals were same but we found diversity in the results. Under optimal conditions, the selected standard samples were analyzed by inductively coupled plasma mass spectrometry (ICP-MS), inductively coupled plasma atomic emission spectroscopy (ICP-AES), and atomic absorption spectroscopy (AAS), and the results were compared. The results show that different elements have their own most suitable detection methods, such as for Pb, the most suitable method is ICP-MS; and for Zn, the most suitable method is AAS. Pretreatment methods and detection techniques are combined to find and improve accuracy of results for certain elements. This study provides a reliable detection method for the accurate detection of heavy metals in the environment.
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Affiliation(s)
- Fei Pan
- College of Chemistry and Chemical Engineering, Hunan University, Changsha, 4100821, People's Republic of China
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Provincial Key Laboratory of Coastal Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, People's Republic of China
| | - Yong Yu
- State Environmental Protection Key Laboratory of Quality Control in Environmental Monitoring, China National Environmental Monitoring Centre, Beijing, 100012, People's Republic of China
| | - Lei Yu
- Hunan Ecology and Environment Monitoring Center, State Environmental Protection Key Laboratory of Monitoring for Heavy Metal Pollutants, Changsha, 410019, Hunan, People's Republic of China
| | - Hailan Lin
- Hunan Ecology and Environment Monitoring Center, State Environmental Protection Key Laboratory of Monitoring for Heavy Metal Pollutants, Changsha, 410019, Hunan, People's Republic of China
| | - Yeyao Wang
- State Environmental Protection Key Laboratory of Quality Control in Environmental Monitoring, China National Environmental Monitoring Centre, Beijing, 100012, People's Republic of China
| | - Linlin Zhang
- State Environmental Protection Key Laboratory of Quality Control in Environmental Monitoring, China National Environmental Monitoring Centre, Beijing, 100012, People's Republic of China
| | - Dawei Pan
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Provincial Key Laboratory of Coastal Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, People's Republic of China.
| | - Rilong Zhu
- College of Chemistry and Chemical Engineering, Hunan University, Changsha, 4100821, People's Republic of China.
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21
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Zhuang H, Gao M, Yan C, Cao Y, Zhang J. Vertical profiles and contamination assessments of heavy metals in sediment cores from typical intertidal zones in northern China. Mar Pollut Bull 2020; 159:111442. [PMID: 32692670 DOI: 10.1016/j.marpolbul.2020.111442] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 06/29/2020] [Accepted: 07/05/2020] [Indexed: 06/11/2023]
Abstract
The concentrations of 7 heavy metals (Cu, Pb, Zn, Cr, Cd, As and Hg) were analysed in 12 sediment cores collected from 6 typical intertidal zones in northern China. The data reveal that the environmental quality of the northern Chinese intertidal environment has gradually improved and that the concentrations of Cu, Pb, Zn, Cr, Cd, As and Hg averaged over all sediments were 29.2, 25.8, 78.5, 72.2, 0.168, 10.7 and 0.044 mg/kg, respectively. The results of the geoaccumulation index and enrichment factor methods demonstrate that most of the sediments in the intertidal zone in northern China have good environmental quality, although some areas are contaminanted, including the Yangtze River Estuary, which is seriously contaminanted. According to sediment quality guidelines, the heavy metal concentrations in the sediments in the 6 typical intertidal zones in this survey are categorized as having moderate impacts with potential adverse biotoxic effects.
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Affiliation(s)
- Haihai Zhuang
- Shaanxi Provincial Land Engineering Construction Group Co., Ltd. Xi-an 710075, China
| | - Maosheng Gao
- Qingdao Institute of Marine Geology, Qingdao 266071, China
| | - Chaofan Yan
- Shaanxi Provincial Land Engineering Construction Group Co., Ltd. Xi-an 710075, China
| | - Yuan Cao
- Shaanxi Provincial Land Engineering Construction Group Co., Ltd. Xi-an 710075, China
| | - Jia Zhang
- Xi-an Zhixin Education Technology Co., Ltd. Xi-an 710075, China.
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22
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Zhai B, Liu Z, Wang X, Bai F, Wang L, Chen Z, Zhang X. Assessment of heavy metal contamination in surface sediments in the western Taiwan Strait. Mar Pollut Bull 2020; 159:111492. [PMID: 32892924 DOI: 10.1016/j.marpolbul.2020.111492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 07/12/2020] [Accepted: 07/19/2020] [Indexed: 06/11/2023]
Abstract
The concentrations of the heavy metals Cu, Pb, Zn, As, Cr, Co, and Ni of a total of 187 surface sediment samples collected from the western Taiwan Strait were analyzed. The distribution characteristics and degree of contamination of these elements were investigated. The mean concentrations of Cu, Pb, Zn, As, Cr, Co, and Ni in the surface sediments of the study area were 10.2 mg/kg, 18.3 mg/kg, 51.7 mg/kg, 7.5 mg/kg, 38.7 mg/kg, 8.0 mg/kg, and 16.5 mg/kg, respectively. The heavy metals in the study area were mainly from natural sources. The regional pollution load index (PLIzone) was 0.64, indicating that there was no contamination, and an area with a relatively high PLIzone was found in the northern part of the study area. Furthermore, the impacts of the rapid development of Fujian's marine economy on the marine environment in the past decade should be further compared and analyzed.
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Affiliation(s)
- Bin Zhai
- The Key Laboratory of Gas Hydrate, Ministry of Land and Resources, Qingdao Institute of Marine Geology, Qingdao 266071, China; Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China
| | - Zhaoqing Liu
- Three Gorges Zhujiang Power Generation Co.,Ltd, Guangdong, Guangzhou 510000, China.
| | - Xianchao Wang
- Shandong Coalfield Geophysical Prospecting and Surveying team, Shandong, Jinan 250104, China
| | - Fenglong Bai
- The Key Laboratory of Gas Hydrate, Ministry of Land and Resources, Qingdao Institute of Marine Geology, Qingdao 266071, China; Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China
| | - Libo Wang
- The Key Laboratory of Gas Hydrate, Ministry of Land and Resources, Qingdao Institute of Marine Geology, Qingdao 266071, China; Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China
| | - Zhengxin Chen
- The Key Laboratory of Gas Hydrate, Ministry of Land and Resources, Qingdao Institute of Marine Geology, Qingdao 266071, China; Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China
| | - Xilin Zhang
- The Key Laboratory of Gas Hydrate, Ministry of Land and Resources, Qingdao Institute of Marine Geology, Qingdao 266071, China; Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China.
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Santos MVS, da Silva Júnior JB, de Carvalho CEV, Dos Santos Vergílio C, Hadlich GM, de Santana CO, de Jesus TB. Geochemical evaluation of potentially toxic elements determined in surface sediment collected in an area under the influence of gold mining. Mar Pollut Bull 2020; 158:111384. [PMID: 32573455 DOI: 10.1016/j.marpolbul.2020.111384] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 06/09/2020] [Accepted: 06/13/2020] [Indexed: 06/11/2023]
Abstract
In this present paper, the distribution of toxic metals and sediment quality were evaluated in five sampling points of the Itapicuru-Mirim River located in the city of Jacobina, Bahia, Brazil. The concentration of the elements arsenic (As), cadmium (Cd), chromium (Cr), copper (Cu), iron (Fe), mercury (Hg), manganese (Mn), nickel (Ni), lead (Pb), and zinc (Zn) were determined from sediment samples collected from the superficial layer (0-10 cm) in November 2013. After the samples' total decomposition, the total concentration of metals was determined by inductively coupled plasma optical emission spectrometry (ICP OES), except for Hg, which was measured by inductively coupled plasma atomic emission spectrometry (ICP AES). A geochemical evaluation of sediment quality was performed using enrichment factor (EF), geoaccumulation index (Igeo), and pollution load index (PLIThe results of the total concentrations in the analyzed sediment samples were compared with the threshold effect levels (TELs) and probable (PELs) effect levels (PELs) in sediment quality guidelines (SQGs). For the fraction <75 μm, the decreasing order for the metal concentrations was (ppm): Fe (10.86%) > Mn (120.8) > Cr (122) > Zn (76.5) > Pb (49.6) > Cu (32.6) > Ni (28.6) > Hg (0.31) > Cd (0.13). Igeo suggested a moderate to seriously polluted category for Hg and moderately polluted for Cu. Generally, the results indicated probable risks to the biota caused by Cr, Ni, Pb, and Hg metals. However, only Hg, Cd, and Cu were of anthropogenic origin. Although the sediments are relatively preserved from pollution by these metals, there is a progressive deterioration of this compartment downstream of the Itapicuru-Mirim River in the city of Jacobina.
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Affiliation(s)
- Marcus Vinicius Silva Santos
- Postgraduate Program in Geochemistry: Petroleum and Environment (POSPETRO), Geoscience Institute - Federal University of Bahia (UFBA), Rua Barão de Jeremoabo, s/n, 40170-110 Salvador, Bahia, Brazil; Federal Institute of Bahia (IFBA), Tv. Santo Amaro, n° 44, Santo Amaro Campus, 44200-000 Santo Amaro da Purificação, Bahia, Brazil
| | - Jucelino Balbino da Silva Júnior
- Postgraduate Program in Geochemistry: Petroleum and Environment (POSPETRO), Geoscience Institute - Federal University of Bahia (UFBA), Rua Barão de Jeremoabo, s/n, 40170-110 Salvador, Bahia, Brazil.
| | - Carlos Eduardo Veiga de Carvalho
- North Fluminense State University Darcy Ribeiro, Alberto Lamego Avenue, 2000, California Park, 28013-602 Campos dos Goytacazes, Rio de Janeiro, Brazil
| | - Cristiane Dos Santos Vergílio
- North Fluminense State University Darcy Ribeiro, Alberto Lamego Avenue, 2000, California Park, 28013-602 Campos dos Goytacazes, Rio de Janeiro, Brazil
| | - Gisele Mara Hadlich
- Postgraduate Program in Geochemistry: Petroleum and Environment (POSPETRO), Geoscience Institute - Federal University of Bahia (UFBA), Rua Barão de Jeremoabo, s/n, 40170-110 Salvador, Bahia, Brazil
| | - Carolina Oliveira de Santana
- Federal Institute of Bahia (IFBA), Tv. Santo Amaro, n° 44, Santo Amaro Campus, 44200-000 Santo Amaro da Purificação, Bahia, Brazil
| | - Taíse Bomfim de Jesus
- Federal Institute of Bahia (IFBA), Tv. Santo Amaro, n° 44, Santo Amaro Campus, 44200-000 Santo Amaro da Purificação, Bahia, Brazil
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24
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Karageorgis AP, Botsou F, Kaberi H, Iliakis S. Geochemistry of major and trace elements in surface sediments of the Saronikos Gulf (Greece): Assessment of contamination between 1999 and 2018. Sci Total Environ 2020; 717:137046. [PMID: 32084678 DOI: 10.1016/j.scitotenv.2020.137046] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 01/29/2020] [Accepted: 01/30/2020] [Indexed: 06/10/2023]
Abstract
The Saronikos Gulf receives pressures from the most urbanized and industrialized areas in Greece, the Athens metropolitan area and Pireaus port, and as such, it is considered as a hot spot of pollution in the Eastern Mediterranean Sea. Decades after policies aiming to achieve clean seas have been introduced and implemented, it is currently relevant to evaluate their impact on the environmental quality. Here we propose a methodology for this topical issue and we assess the distribution of major and trace elements using a 20 year (1999-2018) sedimentary record, and determine the current status, as well as contamination trends. The proposed synthesis of methods is outlined by the following major steps: establishment of background levels from dated cores, calculation of Enrichment Factors (EFs) and the multi-elemental, Modified Pollution Index (MPI), and assessment of temporal trends of MPI in a sub-regional scale. Copper, Zn, and Pb exhibited the highest EFs, mostly observed in the Elefsis Bay, the Inner sector of the Gulf, and the area parallel to the western Attica coast. The MPI classified the latter areas as moderately-heavily to severely polluted. Decreasing trends were detected in the industrialized Elefsis Bay, and were attributed to the decrease of land-based metal loads. No trends were detected in the other sub-regions, highlighting the need for intensifying efforts to abate pollution by designing management plans towards the reduction of metal contamination in the Saronikos Gulf. Finally, the present study illustrates that multi, regionalized background levels are necessary for effectively resolving elemental variations, particularly in the presence of metal-rich lithological complexes within the catchment areas. This finding should be taken into account when the background levels and background assessment levels are established for the Eastern Mediterranean's sub-regional seas within the framework and implementation of the EU's Marine Strategy Framework Directive.
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Affiliation(s)
- A P Karageorgis
- Hellenic Centre for Marine Research, Institute of Oceanography, 46.7 km Athens-Sounio Avenue, 19013 Anavyssos, Greece
| | - F Botsou
- Laboratory of Environmental Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, 15784 Athens, Greece.
| | - H Kaberi
- Hellenic Centre for Marine Research, Institute of Oceanography, 46.7 km Athens-Sounio Avenue, 19013 Anavyssos, Greece
| | - S Iliakis
- Hellenic Centre for Marine Research, Institute of Oceanography, 46.7 km Athens-Sounio Avenue, 19013 Anavyssos, Greece
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Wang X, Fu R, Li H, Zhang Y, Lu M, Xiao K, Zhang X, Zheng C, Xiong Y. Heavy metal contamination in surface sediments: A comprehensive, large-scale evaluation for the Bohai Sea, China. Environ Pollut 2020; 260:113986. [PMID: 31995779 DOI: 10.1016/j.envpol.2020.113986] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 01/08/2020] [Accepted: 01/13/2020] [Indexed: 06/10/2023]
Abstract
Heavy metal contamination in the Bohai Sea (China) has been the focus of many studies, but most of them only focused on local pollution levels and thus lacked high spatial resolution for the whole sea. In this study, heavy metals (i.e., As, Cr, Cu, Cd, Pb, Zn, and Fe) in surface sediments were analyzed to assess the spatio-temporal pollution conditions of the Bohai Sea, an important coastal environment consisting of Bohai Bay, Laizhou Bay, and Liaodong Bay. The results indicated that the heavy metal concentration in the sediments was in the range of 6.43-32.18 mg/kg for As, 14.90-58.07 mg/kg for Cr, 3.90-27.19 mg/kg for Cu, 0.04-0.27 mg/kg for Cd, 11.09-30.95 mg/kg for Pb, 18.76-65.58 mg/kg for Zn, and 0.78%-2.55% for Fe. The distribution of heavy metals revealed that the concentrations were relatively low in Laizhou Bay, very high in the northwest coastal region of the Bohai Sea, and decreased from near-shore to off-shore areas. Moreover, both the enrichment factor and geo-accumulation index demonstrated that there was no contamination to be found for Cr, Cu, Zn in the region and a slight to moderate pollution of As, Cd, and Pb. Cd and As presented considerable potential ecological risk as a result of their high toxicity. The potential ecological risk index (RI) suggested that a third of the areas (northwest coastal area of the Bohai Sea) has moderate ecological risk. The risk area was generally decreased as offshore distance increased, which suggested that the contamination and risk of heavy metals are influenced by anthropogenic activities.
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Affiliation(s)
- Xuejing Wang
- Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China; State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Renlong Fu
- Beijing Geotechnical and Investigation Engineering Institute, Beijing, 100086, China
| | - Hailong Li
- Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China; State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China; State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Beijing, 100083, China.
| | - Yan Zhang
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Beijing, 100083, China; MOE Key Laboratory of Groundwater Circulation & Environment Evolution, School of Water Resources and Environment, China University of Geosciences-Beijing, Beijing, 100083, China
| | - Meiqing Lu
- Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China; State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Kai Xiao
- Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China; State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Xiaolang Zhang
- Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China; State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Chunmiao Zheng
- Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China; State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Ying Xiong
- Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China; State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
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Miao X, Hao Y, Zhang F, Zou S, Ye S, Xie Z. Spatial distribution of heavy metals and their potential sources in the soil of Yellow River Delta: a traditional oil field in China. Environ Geochem Health 2020; 42:7-26. [PMID: 30600451 DOI: 10.1007/s10653-018-0234-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 12/13/2018] [Indexed: 06/09/2023]
Abstract
In this study, soil samples were collected from different layers throughout the whole Yellow River Delta (YERD), in north China. The total concentration of arsenic (As), cadmium (Cd), chromium (Cr), copper (Cu), mercury (Hg), lead (Pb) and zinc (Zn) was determined to demonstrate their spatial distribution and pollution status in different layers of soils throughout the whole YERD. The obtained results suggested a relatively low contamination of heavy metals as observed through the evaluation of CF and RI. The potential ecological risk of Hg is not so severe. Also, the maximum potential threat could be noted only from Cd instead of Hg based on the widespread degree of pollution, which breaks traditional concept that oil production escalates mercury in the soil. The obtained value of EF proves a higher enrichment of heavy metals in the surface soil than in the layer of deep soil induced by human activities. Human activities only slightly elevate As, Cd and Pb. As has the strongest ability downward to lower layer, followed by Cd and Pb in YERD. The source of heavy metals predominantly stems from natural deposits, and their concentrations are controlled by the nature of their association with the mineral. Overall, it shows that the petroleum industry instead of agriculture could be treated as an important source to bring anthropogenic heavy metals in the soils. The human influence only elevated the concentration of heavy metals in the soil of the areas corresponding to the intensive production of oil. In this study some of the measures have also been proposed to avoid and control soil pollution as well as the health risk caused by heavy metals.
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Affiliation(s)
- Xiongyi Miao
- Institute of Polar Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China
| | - Yupei Hao
- Key Laboratory of Karst Dynamics, MNR&GZAR, Institute of Karst Geology, CAGS, Guilin, 541004, China
| | - Fawang Zhang
- Key Laboratory of Karst Dynamics, MNR&GZAR, Institute of Karst Geology, CAGS, Guilin, 541004, China
| | - Shengzhang Zou
- Key Laboratory of Karst Dynamics, MNR&GZAR, Institute of Karst Geology, CAGS, Guilin, 541004, China
| | - Siyuan Ye
- Key Laboratory of Coastal Wetlands Biogeosciences, China Geologic Survey, Qingdao Institute of Marine Geology and Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071, China.
| | - Zhouqing Xie
- Institute of Polar Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China.
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27
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Morera-Gómez Y, Alonso-Hernández CM, Santamaría JM, Elustondo D, Lasheras E, Widory D. Levels, spatial distribution, risk assessment, and sources of environmental contamination vectored by road dust in Cienfuegos (Cuba) revealed by chemical and C and N stable isotope compositions. Environ Sci Pollut Res Int 2020; 27:2184-2196. [PMID: 31773525 DOI: 10.1007/s11356-019-06783-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 10/15/2019] [Indexed: 06/10/2023]
Abstract
Road dust is an indicator widely used when monitoring contamination and evaluating environmental and health risks in urban ecosystems. We conducted an exhaustive characterization of road dust samples coupling their chemical characteristics and stable isotope compositions (C and N) with the aim of evaluating the levels and spatial distribution of local contamination as well as to identify its main source(s) in the coastal city of Cienfuegos (Cuba). Results indicate that the concentrations of several elements (total nitrogen, S, Ca, V, Cu, Zn, Mo, Sn, Hg, and Pb) exceed the background values reported for both Cuban soils and the upper continental crust (UCC) and showed a high variability among the sampling sites. We show that road dust contamination in Cienfuegos induces high associated ecological risks. Among the studied elements, Cd and Hg are the major contributors to the environmental contamination in the city, mainly along busy roads and downtown. δ13C and δ15N, coupled to a multivariate statistical analysis, help associate the studied elements to several local sources of contamination: mineral matter derived from local soils, cement plant and related activities, road pavement alteration, power plant, road traffic, and resuspension of particulate organic matter (POM). Our results suggest that incorporating the chemical and isotope monitoring of road dust may help implement more effective environmental management measures in order to reduce their adverse impact on ecosystems and human health.
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Affiliation(s)
- Yasser Morera-Gómez
- Centro de Estudios Ambientales de Cienfuegos (CEAC), AP 5. Ciudad Nuclear, 59350, Cienfuegos, CP, Cuba.
| | | | - Jesús Miguel Santamaría
- Laboratorio Integrado de Calidad Ambiental (LICA), Universidad de Navarra, C/Irunlarrea s/n, 31008, Navarra, Spain
| | - David Elustondo
- Laboratorio Integrado de Calidad Ambiental (LICA), Universidad de Navarra, C/Irunlarrea s/n, 31008, Navarra, Spain
| | - Esther Lasheras
- Laboratorio Integrado de Calidad Ambiental (LICA), Universidad de Navarra, C/Irunlarrea s/n, 31008, Navarra, Spain
| | - David Widory
- Geotop/Université du Québec à Montréal (UQAM), 201 Ave Président Kennedy, Montreal, QC, Canada
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Lao Q, Su Q, Liu G, Shen Y, Chen F, Lei X, Qing S, Wei C, Zhang C, Gao J. Spatial distribution of and historical changes in heavy metals in the surface seawater and sediments of the Beibu Gulf, China. Mar Pollut Bull 2019; 146:427-434. [PMID: 31426177 DOI: 10.1016/j.marpolbul.2019.06.080] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 06/12/2019] [Accepted: 06/30/2019] [Indexed: 06/10/2023]
Abstract
To study the impact of rapid industrialization and urbanization in Guangxi Province on the coastal environment in recent years, seven metals (Hg, Cu, Pb, Cd, Cr, Zn and As) were investigated in the surface seawater and sediments of the northern Beibu Gulf. The levels of the metals were lower than in other regions in China, but Hg, Cu and Cd showed a significant increasing trend in both seawater and sediments over the past 20 years. Higher levels were consistently observed in the nearshore area, particularly in the northwest, which may be related to the rapid industrial development in coastal areas. Correlation and principal component analyses suggested that both terrestrial inputs and biological processes influenced the distribution of metals. In addition, the higher risk observed for Hg and Cu may be largely influenced by the increasing trend in these metals in the Beibu Gulf.
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Affiliation(s)
- Qibin Lao
- Marine Environmental Monitoring Centre of Beihai, State Oceanic Administration, Beihai 536000, China
| | - Qizhong Su
- Marine Environmental Monitoring Centre of Beihai, State Oceanic Administration, Beihai 536000, China
| | - Guoqiang Liu
- Marine Environmental Monitoring Centre of Beihai, State Oceanic Administration, Beihai 536000, China.
| | - Youli Shen
- Marine Environmental Monitoring Centre of Beihai, State Oceanic Administration, Beihai 536000, China
| | - Fajin Chen
- College of Ocean and Meteorology, Guangdong Ocean University, Zhanjiang 524088, China; Guangdong Province Key Laboratory for Coastal Ocean Variation and Disaster Prediction, Guangdong Ocean University, Zhanjiang 524088, China
| | - Xuetie Lei
- Marine Environmental Monitoring Centre of Beihai, State Oceanic Administration, Beihai 536000, China
| | - Shangmin Qing
- Marine Environmental Monitoring Centre of Beihai, State Oceanic Administration, Beihai 536000, China
| | - Chunlei Wei
- Marine Environmental Monitoring Centre of Beihai, State Oceanic Administration, Beihai 536000, China
| | - Chunhua Zhang
- Marine Environmental Monitoring Centre of Beihai, State Oceanic Administration, Beihai 536000, China
| | - Jingsong Gao
- Nanning Normal University, Key Laboratory of Environmental Change and Resource Use in Beibu Gulf, Ministry of Education, Nanning 530001, China.
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29
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Garmendia M, Fdez-Ortiz de Vallejuelo S, Liñero O, Gredilla A, Arana G, Soto M, de Diego A. Long term monitoring of metal pollution in sediments as a tool to investigate the effects of engineering works in estuaries. A case study, the Nerbioi-Ibaizabal estuary (Bilbao, Basque Country). Mar Pollut Bull 2019; 145:555-563. [PMID: 31590823 DOI: 10.1016/j.marpolbul.2019.06.051] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 06/05/2019] [Accepted: 06/19/2019] [Indexed: 06/10/2023]
Abstract
The Nerbioi-Ibaizabal estuary (Bilbao, Basque Country) suffered an important input of contaminants, including metals and metalloids, between 1875 and 1975. We collected sediments in the tidal part of the river in January 2018 and measured the concentrations of 27 elements in them. At that time, two important construction works were taking place in the area: the extension of the commercial port and the opening of long semi-closed channel. Comparing the current metallic hotspots with the geographical distribution of elements in previous years (2009, 2010 and 2014) showed us that these works seem to have significantly influenced the distribution of toxic elements in the estuary, even if the critical point of the second one is still to arrive with the inundation of the connection to the mainland. Long term pollution monitoring reveals as a powerful tool to check the effects of ongoing engineering works in estuarine environments.
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Affiliation(s)
- Marina Garmendia
- Department of Analytical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Sarriena Auzoa z/g, 48940 Leioa, Basque Country, Spain.
| | - Silvia Fdez-Ortiz de Vallejuelo
- Department of Analytical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Sarriena Auzoa z/g, 48940 Leioa, Basque Country, Spain.
| | - Olaia Liñero
- Department of Analytical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Sarriena Auzoa z/g, 48940 Leioa, Basque Country, Spain
| | - Ainara Gredilla
- Department of Applied Chemistry, Faculty of Chemistry, University of the Basque Country (UPV/EHU), Manuel de Lardizabal pasealekua 3, 20018 Donostia, Basque Country, Spain
| | - Gorka Arana
- Department of Analytical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Sarriena Auzoa z/g, 48940 Leioa, Basque Country, Spain
| | - Manuel Soto
- Zoology and Animal Cell Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Sarriena Auzoa z/g, 48940 Leioa, Basque Country, Spain; Plentziako Itsas Estazioa (PIE), University of the Basque Country (UPV/EHU), Areatza pasealekua, 48620 Plentzia, Basque Country, Spain
| | - Alberto de Diego
- Department of Analytical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Sarriena Auzoa z/g, 48940 Leioa, Basque Country, Spain; Plentziako Itsas Estazioa (PIE), University of the Basque Country (UPV/EHU), Areatza pasealekua, 48620 Plentzia, Basque Country, Spain
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Zhu H, Bing H, Wu Y, Zhou J, Sun H, Wang J, Wang X. The spatial and vertical distribution of heavy metal contamination in sediments of the Three Gorges Reservoir determined by anti-seasonal flow regulation. Sci Total Environ 2019; 664:79-88. [PMID: 30743133 DOI: 10.1016/j.scitotenv.2019.02.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 01/29/2019] [Accepted: 02/01/2019] [Indexed: 05/14/2023]
Abstract
The contamination of heavy metals in sediments of the Three Gorges Reservoir (TGR) is increasingly concerned as a major issue for water quality since the full impoundment. In this study, the sediment profiles in the riparian and submerged areas from Fuling to Zigui in the middle-low TGR mainstream were collected to investigate the stratified distribution of heavy metals (Cd, Cr, Cu, Ni, Pb and Zn) and assess their contamination and potential eco-risk. The results showed that the concentrations of these metals in the riparian sediments did not present a marked spatial trend except the concentrations of Cd that increased towards the dam. However, the metal concentrations (except Cd) in the submerged sediments were generally higher near the dam. The concentrations of heavy metals in the riparian sediments did not show marked vertical variation, while in the submerged sediments they fluctuated dramatically with depth, indicating the metal accumulation processes in last few years. Sediment grain sizes as an indicator of hydrodynamic regimes dominated the vertical distribution of heavy metals over organic matters and Fe/Mn oxide/hydroxides. The sediments from both riparian and submerged areas of the TGR were contaminated by anthropogenic metals of Cd, Cu and Pb that were mainly from the ore mining, fossil fuel combustion, agricultural pollution and atmospheric deposition. Cadmium was a major metal pollutant in the sediments with a high contamination and potential eco-risk level. The results of this study indicate that the sorting of sediments with the anti-seasonal flow regulation determines the spatial and temporal distribution of heavy metal contamination in the sediments, and the impoundment stages of the TGR in history regulate the accumulation processes of the metals.
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Affiliation(s)
- He Zhu
- The Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China; University of Chinese Academy of Sciences, Beijing 10049, China
| | - Haijian Bing
- The Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China.
| | - Yanhong Wu
- The Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China.
| | - Jun Zhou
- The Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China
| | - Hongyang Sun
- The Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China
| | - Jipeng Wang
- The Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China
| | - Xiaoxiao Wang
- The Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China
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Dung TTT, Linh TM, Chau TB, Hoang TM, Swennen R, Cappuyns V. Contamination status and potential release of trace metals in a mangrove forest sediment in Ho Chi Minh City, Vietnam. Environ Sci Pollut Res Int 2019; 26:9536-9551. [PMID: 30729439 DOI: 10.1007/s11356-019-04355-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2018] [Accepted: 01/22/2019] [Indexed: 06/09/2023]
Abstract
Can Gio district is located in the coastal area of Ho Chi Minh City, southern Vietnam. Discharge of wastewater from Ho Chi Minh City and neighboring provinces to the rivers of Can Gio has led to concerns about the accumulation of trace metals (As, Cu, Cr, Ni, Pb, and Zn) in the coastal sediments. The main objective of this study was to assess the distribution of As, Cu, Cr, Ni, Pb, and Zn in surface and core sediments and to evaluate the contamination status in relation to local background values, as well as the potential release of these selected trace metals from sediments to the water environment. Sediment characteristization, including determination of fine fraction, pH, organic matter, and major elements (Al, Fe, Ca, K, Mg, and S), was carried out to investigate which parameters affect the trace metal enrichment. Fine fraction and Al contents were found to be the controlling proxies affecting the distribution of trace metals while other sediment characteristics did not show any clear influence on trace metals' distribution. Although As concentrations in the sediments were much higher compared to its reference value in other areas, the enrichment factor based on local background values suggests minor contamination of this element as well as for Cr, Cu, and Pb. Risk assessment suggested a medium to very high risk of Mn, Zn, and Ni under acidification. Of importance is also that trace metals in sediments were not easily mobilized by organic complexation based on their low extractabilities by ammonium-EDTA extraction.
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Affiliation(s)
- Tran Thi Thu Dung
- University of Science, Faculty of Environment, Vietnam National University Ho Chi Minh City (VNUHCMC), 227 Nguyen Van Cu St., W4, D5, Ho Chi Minh City, Vietnam.
| | - Tong My Linh
- University of Science, Faculty of Environment, Vietnam National University Ho Chi Minh City (VNUHCMC), 227 Nguyen Van Cu St., W4, D5, Ho Chi Minh City, Vietnam
| | - Tran Bích Chau
- University of Science, Faculty of Environment, Vietnam National University Ho Chi Minh City (VNUHCMC), 227 Nguyen Van Cu St., W4, D5, Ho Chi Minh City, Vietnam
| | - Truong Minh Hoang
- University of Science, Faculty of Geology, Vietnam National University Ho Chi Minh City (VNUHCMC), 227 Nguyen Van Cu St., W4, D5, Ho Chi Minh City, Vietnam
| | - Rudy Swennen
- Department of Earth and Environmental Sciences, KU Leuven, Celestijnenlaan 200E, 3001, Leuven, Belgium
| | - Valerie Cappuyns
- Department of Earth and Environmental Sciences, KU Leuven, Celestijnenlaan 200E, 3001, Leuven, Belgium
- Centre for Economics and Corporate Sustainability, KU Leuven, Warmoesberg 26, 1000, Brussels, Belgium
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Wang Z, Qin H, Liu X. Health risk assessment of heavy metals in the soil-water-rice system around the Xiazhuang uranium mine, China. Environ Sci Pollut Res Int 2019; 26:5904-5912. [PMID: 30612376 DOI: 10.1007/s11356-018-3955-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Accepted: 12/07/2018] [Indexed: 06/09/2023]
Abstract
Heavy-metal pollutants in the soil and surface water of agricultural areas accumulate in rice and may have adverse effects on the health of consumers. In this study, we determined the levels of heavy-metal contamination in agricultural areas around the Xiazhuang uranium deposits in northern Guangdong Province, China, using equidistant sampling methods along a river near the mine tailings. The pH values of all the water samples were determined. The heavy-metal concentrations in water, bottom sludge, and rice were measured. The extent of contamination was evaluated by calculating Nemerow's pollution index, contamination factor, and hazard quotient. The result shows U transferred from mine to soil and rice with irrigation water. The main pollutants and their pollution indices in soil are U (6.31), Th (4.02), Pb (2.52), Cd (2.36), Zn (1.52), and Mn (1.39). The rice grain can hardly enrich U and Th but were susceptible to Cr and Ni. The contamination factors (CFs) of the pollutants in rice grain are Cr (1.98) and Ni (3.09). The hazard quotient (HQ) shows that Cu (HQ > 1) could pose potential risks for humans upon long-term consumption of the rice.
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Affiliation(s)
- Zhenghai Wang
- School of Earth Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, China.
| | - Haoyang Qin
- School of Earth Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Xinyun Liu
- School of Earth Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, China
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Qiu J, Liu J, Li M, Wang S, Bai W, Zhang D. Assessment of heavy metal contamination in surface sediments from the nearshore zone, southern Jiangsu Province, China. Mar Pollut Bull 2018; 133:281-288. [PMID: 30041315 DOI: 10.1016/j.marpolbul.2018.05.055] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 05/14/2018] [Accepted: 05/26/2018] [Indexed: 06/08/2023]
Abstract
We determined the heavy metal concentrations and evaluated the pollution status of 213 surface sediment samples collected from the nearshore zone of southern Jiangsu Province, China. The distributions of lead (Pb) and zinc (Zn) were similar, and their concentrations were highest in tidal creeks dominated by fine-grained sediments, such as the Dawanhong and Wangcanghong creeks and the outer part of Lanshayang Creek. The spatial distributions of chromium (Cr) and cadmium (Cd) were similar, with high concentrations south of Yangkou Port and Haozhi Port. Copper (Cu) concentrations were high off the coast of Rudong. The sediments were not polluted by Cu, but were weakly polluted by Cd, Cr, Pb, and Zn. The results of principal component analysis indicated that Pb and Zn were mainly from natural sources, Cd and Cr were from anthropogenic sources, and Cu was from a mixture of natural and anthropogenic sources.
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Affiliation(s)
- Jiandong Qiu
- Key Laboratory of Marine Environmental Geology, Ministry of Natural Resources, Qingdao Institute of Marine Geology, Qingdao 266071, China; Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China; Qingdao Institute of Marine Geology, Ministry of Natural Resources, Qingdao 266071, China
| | - Jinqing Liu
- Key Laboratory of Marine Environmental Geology, Ministry of Natural Resources, Qingdao Institute of Marine Geology, Qingdao 266071, China; Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China.
| | - Meina Li
- Key Laboratory of Marine Environmental Geology, Ministry of Natural Resources, Qingdao Institute of Marine Geology, Qingdao 266071, China; Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China
| | - Shuang Wang
- Key Laboratory of Marine Environmental Geology, Ministry of Natural Resources, Qingdao Institute of Marine Geology, Qingdao 266071, China; Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China
| | - Weiming Bai
- Qingdao Institute of Marine Geology, Ministry of Natural Resources, Qingdao 266071, China
| | - Daolai Zhang
- Qingdao Institute of Marine Geology, Ministry of Natural Resources, Qingdao 266071, China
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Wang C, Pan D, Han H, Hu X. Vertical profile, contamination assessment of mercury and arsenic in sediment cores from typical intertidal zones of China. Environ Monit Assess 2018; 190:366. [PMID: 29846793 DOI: 10.1007/s10661-018-6732-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Accepted: 05/16/2018] [Indexed: 06/08/2023]
Abstract
The vertical profiles, contamination levels, and potential ecological risks of mercury and arsenic were studied from the sediment cores of seven typical intertidal zones, including the Liaohe River Estuary, the Jianhe River Estuary, the Dagu River Estuary, Yancheng Shoal, the Dongtan Yangtze River Estuary, Hangzhou Bay, and the Pearl River Estuary. Marine sediment quality standards, the threshold effect level (TEL), and the probable effect level (PEL) were used as guidelines to evaluate sediment quality. In addition, the geo-accumulation index (Igeo) and potential ecological risk index ([Formula: see text]) were used to assess contamination and potential ecological risks from mercury and arsenic. The results showed that the Pearl River Estuary was moderately polluted by mercury and represented a high potential ecological risk, while other areas were uncontaminated or mildly contaminated with low or moderate potential ecological risks. The Pearl River Estuary was mildly polluted by arsenic and represented a mild potential ecological risk, while other areas were unpolluted and also posed a mild potential ecological risk.
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Affiliation(s)
- Chenchen Wang
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal zone Research, Chinese Academy of Sciences, Chunhui Road 17, Yantai, 264003, People's Republic of China
| | - Dawei Pan
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal zone Research, Chinese Academy of Sciences, Chunhui Road 17, Yantai, 264003, People's Republic of China.
- University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China.
| | - Haitao Han
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal zone Research, Chinese Academy of Sciences, Chunhui Road 17, Yantai, 264003, People's Republic of China
| | - Xueping Hu
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal zone Research, Chinese Academy of Sciences, Chunhui Road 17, Yantai, 264003, People's Republic of China
- University of Chinese Academy of Sciences, Beijing, 100049, People's Republic of China
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Méndez-Fernandez P, Taniguchi S, Santos MCO, Cascão I, Quérouil S, Martín V, Tejedor M, Carrillo M, Rinaldi C, Rinaldi R, Montone RC. Contamination status by persistent organic pollutants of the Atlantic spotted dolphin (Stenella frontalis) at the metapopulation level. Environ Pollut 2018; 236:785-794. [PMID: 29459333 DOI: 10.1016/j.envpol.2018.02.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Revised: 01/23/2018] [Accepted: 02/04/2018] [Indexed: 06/08/2023]
Abstract
The Atlantic spotted dolphin (Stenella frontalis) is an endemic species of the tropical-temperate Atlantic Ocean with widespread distribution. Although this species has been the subject of a large number of studies throughout its range, it remains in the "data deficient" category of the International Union for Conservation of Nature (IUCN). Chemical pollution by persistent organic pollutants (POPs) has been listed as one of the major threats to this species, however, there is no information on a wide scale. Thus, the aim of the present study was to investigate the contamination status of spotted dolphins on the metapopulation level as well as determine spatial and temporal variations in POP concentrations and bio-accumulation. A total of 115 blubber samples collected from a large part of the Atlantic basin were analysed for PCBs, DDTs, PBDEs, chlordanes, HCB and mirex. Although PCBs and DDTs were the predominant compounds in all areas, inter-location differences in POP concentrations were observed. Dolphins found at São Paulo, southeastern coast of Brazil, had the highest PCB concentrations (median: 10.5 μg/g lw) and Canary Islands dolphins had the highest DDT concentrations (median: 5.13 μg/g lw). Differences in PCB patterns among locations were also observed. Dolphins from the Azores and São Paulo demonstrated a similar pattern, with relatively highly contributions of tetra- (6.8 and 5.2%, respectively) and penta-CBs (25.6 and 23.8%, respectively) and lower contributions of hepta-CBs (20.8 and 23.5%, respectively) in comparison to other areas. Moreover, the sex of the animals and the year in which sampling or capture occurred exerted an important influence on the majority of the POPs analysed. Comparisons with toxicity thresholds available in the literature reveal that the São Paulo and Canary Island dolphins are the most vulnerable populations and should be considered in future conservation and management programs for the Atlantic spotted dolphin.
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Affiliation(s)
- Paula Méndez-Fernandez
- Laboratório de Química Orgânica Marinha, Instituto Oceanográfico, Universidade de São Paulo, São Paulo, SP 05508-120, Brazil.
| | - Satie Taniguchi
- Laboratório de Química Orgânica Marinha, Instituto Oceanográfico, Universidade de São Paulo, São Paulo, SP 05508-120, Brazil
| | - Marcos C O Santos
- Laboratório de Biologia da Conservação de Mamíferos Aquáticos, Instituto Oceanográfico, Universidade de São Paulo, São Paulo, SP 05508-120, Brazil
| | - Irma Cascão
- Department of Oceanography and Fisheries & Okeanos Centre, University of the Azores, 9901-862 Horta, Portugal; Marine and Environmental Sciences Centre (MARE) & Institute of Marine Research (IMAR), University of the Azores, 9901-862 Horta, Portugal
| | - Sophie Quérouil
- Institut des Sciences de l'Evolution de Montpellier (ISE-M), IRD-UMR226, Université de Montpellier, CCO65, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France
| | - Vidal Martín
- Sociedad para el Estudio de Cetáceos del Archipiélago Canario (SECAC), Casa de los Arroyo, Avda. Coll n.6, 35500 Arrecife, Lanzarote, Spain
| | - Marisa Tejedor
- Sociedad para el Estudio de Cetáceos del Archipiélago Canario (SECAC), Casa de los Arroyo, Avda. Coll n.6, 35500 Arrecife, Lanzarote, Spain
| | - Manuel Carrillo
- Tenerife Conservación, C/Maya No. 8, La Laguna, Tenerife, Canary Islands, Spain
| | - Carolina Rinaldi
- Association Evasion Tropicale, 1 Rue des Palétuviers, Pigeon Bouillante, 97125, Guadeloupe, France
| | - Renato Rinaldi
- Association Evasion Tropicale, 1 Rue des Palétuviers, Pigeon Bouillante, 97125, Guadeloupe, France
| | - Rosalinda C Montone
- Laboratório de Química Orgânica Marinha, Instituto Oceanográfico, Universidade de São Paulo, São Paulo, SP 05508-120, Brazil
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Bing H, Xiang Z, Zhu H, Wu Y. Spatiotemporal variation and exposure risk to human health of potential toxic elements in suburban vegetable soils of a megacity, SW China, 2012-2016. Environ Sci Pollut Res Int 2018; 25:4223-4237. [PMID: 29178015 DOI: 10.1007/s11356-017-0769-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Accepted: 11/15/2017] [Indexed: 06/07/2023]
Abstract
Trace element contamination in soils of vegetable fields can threat public health. Seven potential toxic elements (As, Cd, Cr, Cu, Ni, Pb, and Zn) in suburban vegetable soils of Chengdu city, Southwest China, in 2012 and 2016, were analyzed to identify their sources with the spatiotemporal variation and assess their contamination and health risk for residents. The results showed that the concentrations of soil elements did not increase significantly in 2016 compared with that in 2012, whereas their spatial distributions altered markedly. The hot spots of soil As, Cd, and Pb as well as Cu and Zn in 2016 revealed the anthropogenic sources including agricultural activities, industrial emissions, road dust with heavy traffic, and open burning of solid waste. The apparent spatial difference of anthropogenic elements was related to the layout of land use surrounding the vegetable field. The contamination of soil elements decreased in the order of Cd > As ≈ Zn > Cu ≈ Pb > Cr ≈ Ni in 2012 and Cd > Zn > As ≈ Cu ≈ Pb > Cr ≈ Ni in 2016, and the vegetable soils were slightly to moderately contaminated by these elements through integrated contamination index. The sites affected by the trace elements did not increase in 2016 than in 2012, whereas the sites with relatively high contamination increased markedly. The non-carcinogenic risk of trace elements was generally acceptable, and children showed higher health risk than adults. The As carcinogenic risk for children varied between 5.48 × 10-5 and 1.59 × 10-4 in 2012 and between 4.40 × 10-5 and 1.82 × 10-4 in 2016, and the sites above acceptable levels (> 10-4) reached 60.6% and 48.5% in 2012 and 2016, respectively. The health risk of As in the vegetable soils should be paid more attention due to its high toxicity.
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Affiliation(s)
- Haijian Bing
- The Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, 610041, China.
| | - Zhongxiang Xiang
- The Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, 610041, China
- Graduate University of Chinese Academy of Sciences, Beijing, 100049, China
| | - He Zhu
- The Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, 610041, China
- Graduate University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yanhong Wu
- The Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, 610041, China
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Zhang W, Cao F, Yang L, Dai J, Pang X. Distribution, fractionation and risk assessment of mercury in surficial sediments of Nansi Lake, China. Environ Geochem Health 2018; 40:115-125. [PMID: 28251476 DOI: 10.1007/s10653-017-9922-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Accepted: 02/14/2017] [Indexed: 06/06/2023]
Abstract
Nansi Lake is composed of four sub-lakes from north to south: Nanyang Lake, Dushan Lake, Zhaoyang Lake and Weishan Lake. An environmental pollution investigation was carried out to determine the fractionation, and pollution assessments of mercury (Hg) in surficial sediments from Nansi Lake. Results showed that the mean concentration of Hg was 3.1 times higher than its background value (0.015 mg kg-1), and the high concentration of Hg which even reached up to five times than the background value in the part of Dushan Lake and Weishan Lake, which indicated that there are obvious spatial differences. The content of Hg was positively correlated with that of total organic carbon, and negatively correlated with that of pH and SiO2 in surface sediments. An improved Tessier sequential extraction procedure was used to study the fractions of Hg in sediments. The results indicated that Hg existed primarily in the fraction of residual, which accounts for 58.4% of total mercury (THg), and the percentage of extractable Hg was only 1.93% of total mercury. High concentrations of mercury of non-residual phase were found in part lake area from the Nanyang Lake and the Weishan Lake, which indicating a higher potential ecological risk relative to the other lake areas. Based on the values of enrichment factor and geo-accumulation index, most part of Dushan Lake and Nanyang Lake and Weishan Lake were in a moderate pollution. And based on the fractionation of mercury, risk assessment code of Hg exhibited low risks to the environment in Nansi Lake.
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Affiliation(s)
- Wei Zhang
- School of Resources and Environment, University of Jinan, Jinan, 250022, China
| | - Feifei Cao
- School of Resources and Environment, University of Jinan, Jinan, 250022, China.
| | - Liyuan Yang
- School of Resources and Environment, University of Jinan, Jinan, 250022, China.
| | - Jierui Dai
- Shandong Institute of Geological Survey, Jinan, 250013, China
| | - Xugui Pang
- Shandong Institute of Geological Survey, Jinan, 250013, China
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Qian Y, Gallagher F, Deng Y, Wu M, Feng H. Risk assessment and interpretation of heavy metal contaminated soils on an urban brownfield site in New York metropolitan area. Environ Sci Pollut Res Int 2017; 24:23549-23558. [PMID: 28852949 DOI: 10.1007/s11356-017-9918-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Accepted: 08/03/2017] [Indexed: 06/07/2023]
Abstract
In this study, soil samples were collected at 22 sites in Liberty State Park, New Jersey, in 2005, for metal enrichment and potential ecological risk assessment. The geoaccumulation index (I geo) showed that enrichment levels of trace metals followed an order of Cu > Pb > Zn > As > Cr > Hg while the potential ecological risk factor ([Formula: see text]) indicated that the potential ecological risk of the metals was in the order of Cu > Pb > As > Hg > Zn > Cr. Among these 22 sites, this investigation identified 9 sites at moderate ecological risk, 3 sites at considerable ecological risk, and 4 sites at high ecological risk according to the potential ecological risk index (RI). Hierarchical cluster analysis (CA) of soil metal concentrations separated the study sites into four groups, which are supported by the significant difference in RI values. Geographically, three regions in the Liberty State Park brownfield site were determined based on the CA results and RI values. Subarea 1 had low ecological risk while subareas 2 and 3 had a greater potential for ecological risk. Significant correlations of Pb with Cr and Zn were observed in subareas 2 and 3, respectively. This study shows that statistical approaches coupled with a risk assessment index provide a more comprehensive interpretation of land contamination than a single approach in support of planning land redevelopment.
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Affiliation(s)
- Yu Qian
- School of Ecology and Environmental Sciences, Yunnan University, Kunming, Yunnan, 650091, People's Republic of China
- Department of Earth and Environmental Studies, Montclair State University, Montclair, NJ, 07043, USA
| | - Frank Gallagher
- Department of Landscape Architecture, Urban Forestry Laboratory, Rutgers, The State University of New Jersey, New Brunswick, NJ, 08901, USA
| | - Yang Deng
- Department of Earth and Environmental Studies, Montclair State University, Montclair, NJ, 07043, USA
| | - Meiyin Wu
- Department of Biology and Microbiology, Montclair State University, Montclair, NJ, 07043, USA
| | - Huan Feng
- Department of Earth and Environmental Studies, Montclair State University, Montclair, NJ, 07043, USA.
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Song H, Liu J, Yin P, Zhang Y. Distribution, enrichment and source of heavy metals in Rizhao offshore area, southeast Shandong Province. Mar Pollut Bull 2017; 119:175-180. [PMID: 28433395 DOI: 10.1016/j.marpolbul.2017.04.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 04/04/2017] [Accepted: 04/10/2017] [Indexed: 06/07/2023]
Abstract
50 surface sediments were collected from Rizhao offshore area to determine heavy metals (Cu, Pb, Zn, Cr, Cd, As, Hg) pollution. High heavy metal values were located near the two ports in the north and south study areas, which was consistent with the distribution of fine-grained sediments. According to threshold effect level (TEL) and probable effect level (PEL), Cu and As had occasionally adverse biological effects on the aquatic ecosystems. The enrichment factor (EF) values showed that most of the study area was moderate or moderately severe enrichment for As, and minor enrichment for Pb, but Hg was only moderately enriched in the river estuaries. The sources of Cu, Zn and Cr were mainly influenced by natural weathering processes via the river inputs, whereas Pb, Cd and As were mainly derived from anthropogenic sources. Hg may have both natural and anthropogenic sources.
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Affiliation(s)
- Hongying Song
- College of Marine Geosciences, Ocean University of China, Qingdao 266100, China; Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology, Ministry of Land and Resources, Qingdao Institute of Marine Geology, Qingdao 266071, China; Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China
| | - Jinqing Liu
- Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology, Ministry of Land and Resources, Qingdao Institute of Marine Geology, Qingdao 266071, China; Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China.
| | - Ping Yin
- Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology, Ministry of Land and Resources, Qingdao Institute of Marine Geology, Qingdao 266071, China; Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China
| | - Yong Zhang
- Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology, Ministry of Land and Resources, Qingdao Institute of Marine Geology, Qingdao 266071, China; Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China
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40
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Zhang P, Hu R, Zhu L, Wang P, Yin D, Zhang L. Distributions and contamination assessment of heavy metals in the surface sediments of western Laizhou Bay: Implications for the sources and influencing factors. Mar Pollut Bull 2017; 119:429-438. [PMID: 28365020 DOI: 10.1016/j.marpolbul.2017.03.046] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2016] [Revised: 03/19/2017] [Accepted: 03/22/2017] [Indexed: 06/07/2023]
Abstract
Heavy metals (Cu, Pb, Cr, Cd and As) contents in surface sediments from western Laizhou Bay were analysed to evaluate the spatial distribution pattern and their contamination level. As was mainly concentrated in the coastal area near the estuaries and the other metals were mainly concentrated in the central part of the study area. The heavy metals were present at unpolluted levels overall evaluated by the sediment quality guidelines and geoaccumulation index. Principal component analysis suggest that Cu, Pb and Cd were mainly sourced from natural processes and As was mainly derived from anthropogenic inputs. Meanwhile, Cr originated from both natural processes and anthropogenic contributions. Tidal currents, sediments and human activities were important factors affecting the distribution of heavy metals. The heavy metal environment was divided into four subareas to provide a reference for understanding the distribution and pollution of heavy metals in the estuary-bay system.
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Affiliation(s)
- Pan Zhang
- College of Marine Geoscience, Ocean University of China, Qingdao 266100, PR China; Key Lab of Submarine Geosciences and Prospecting Techniques, Ministry of Education, Ocean University of China, Qingdao 266100, PR China
| | - Rijun Hu
- College of Marine Geoscience, Ocean University of China, Qingdao 266100, PR China; Key Lab of Submarine Geosciences and Prospecting Techniques, Ministry of Education, Ocean University of China, Qingdao 266100, PR China.
| | - Longhai Zhu
- College of Marine Geoscience, Ocean University of China, Qingdao 266100, PR China; Key Lab of Submarine Geosciences and Prospecting Techniques, Ministry of Education, Ocean University of China, Qingdao 266100, PR China
| | - Peng Wang
- National Marine Environmental Monitoring Center, PR China
| | - Dongxiao Yin
- College of Marine Geoscience, Ocean University of China, Qingdao 266100, PR China; Key Lab of Submarine Geosciences and Prospecting Techniques, Ministry of Education, Ocean University of China, Qingdao 266100, PR China
| | - Lianjie Zhang
- College of Marine Geoscience, Ocean University of China, Qingdao 266100, PR China; Key Lab of Submarine Geosciences and Prospecting Techniques, Ministry of Education, Ocean University of China, Qingdao 266100, PR China
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Mathur R, Balaram V, Satyanarayanan M, Sawant SS. Assessment of heavy metal contamination of road dusts from industrial areas of Hyderabad, India. Environ Monit Assess 2016; 188:514. [PMID: 27518441 DOI: 10.1007/s10661-016-5496-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Accepted: 07/19/2016] [Indexed: 06/06/2023]
Abstract
Road dust in industrial areas carries high levels of toxic heavy metals. Exposure to such polluted dust significantly affects the health of people residing in these areas, which is of major concern. The present study was taken up with an aim to highlight the magnitude and potential sources of accumulation of heavy metals in 32 road dust samples collected from six industrial areas of Hyderabad. Acid-digested sample solutions were analyzed by ICP-MS for Cu, Zn, Cr, Co, Pb, Ni, V, Zr, Ce, Y, and Hf. The road dusts exhibit significantly high mean metal levels which are much above their crustal abundances. The relative ordering of mean metal contents is Zr > Zn > Pb > Cr > Ce > Cu > V > Ni > Y > Co > Hf. Elevated pollution indices (I geo, EF, C (i) f, and C deg) reveal that the road dusts are pollution impacted showing varying degree of heavy metal contamination. Strong positive correlations exhibited by metal pairs Cu-Zn, Cr-Ni, Ce-V, Y-Ce, and Hf-Zr imply their origin from common anthropogenic sources. Principal component analysis grouped the metals according to the sources which contributed to their accumulation. The present study confirms to an intensive anthropogenic impact on the accumulation of heavy metals in the studied road dusts attributable mainly to strong influences of vehicular and industrial activity and partly to domestic and natural processes. The results obtained imply the need for further investigations to assess their ecological implications and human health risks.
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Affiliation(s)
- Ramavati Mathur
- CSIR-National Geophysical Research Institute, Uppal Road, Hyderabad, 500007, India.
| | - V Balaram
- CSIR-National Geophysical Research Institute, Uppal Road, Hyderabad, 500007, India
| | - M Satyanarayanan
- CSIR-National Geophysical Research Institute, Uppal Road, Hyderabad, 500007, India
| | - S S Sawant
- CSIR-National Geophysical Research Institute, Uppal Road, Hyderabad, 500007, India
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Liu J, Yin P, Chen B, Gao F, Song H, Li M. Distribution and contamination assessment of heavy metals in surface sediments of the Luanhe River Estuary, northwest of the Bohai Sea. Mar Pollut Bull 2016; 109:633-639. [PMID: 27197763 DOI: 10.1016/j.marpolbul.2016.05.020] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Revised: 05/02/2016] [Accepted: 05/09/2016] [Indexed: 06/05/2023]
Abstract
33 surface sediment samples from the Luanhe River Estuary have been analyzed for heavy metals to evaluate the spatial distribution pattern and their potential ecological risk. Higher metal concentrations were found in the river mouth and southern areas where being covered by fine particulate matters. In comparison with the threshold effect level and the probable effect level, Cu, Pb, Cr, Ni, and As had occasionally adverse biological effects on the aquatic ecosystems. Both the enrichment factor and geoaccumulation index values show that all the regions have been weakly polluted by Pb, Hg, As, and Cd with an exception of being moderately to strongly polluted by Hg in the river mouth and southern areas. The sources of Zn, Ni, Cd, Hg, and Cr were mainly from the river input and coastal discharge, whereas Cu, Pb, and As were mainly derived from vehicle emissions, coal and oil combustion.
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Affiliation(s)
- Jinqing Liu
- College of Marine Geosciences, Ocean University of China, Qingdao 266100, China; Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology, Ministry of Land and Resources, Qingdao 266071, China; Qingdao Institute of Marine Geology, Qingdao 266071, China
| | - Ping Yin
- Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology, Ministry of Land and Resources, Qingdao 266071, China; Qingdao Institute of Marine Geology, Qingdao 266071, China.
| | - Bin Chen
- Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology, Ministry of Land and Resources, Qingdao 266071, China; Qingdao Institute of Marine Geology, Qingdao 266071, China
| | - Fei Gao
- Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology, Ministry of Land and Resources, Qingdao 266071, China; Qingdao Institute of Marine Geology, Qingdao 266071, China
| | - Hongying Song
- College of Marine Geosciences, Ocean University of China, Qingdao 266100, China; Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology, Ministry of Land and Resources, Qingdao 266071, China; Qingdao Institute of Marine Geology, Qingdao 266071, China
| | - Meina Li
- College of Marine Geosciences, Ocean University of China, Qingdao 266100, China; Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology, Ministry of Land and Resources, Qingdao 266071, China; Qingdao Institute of Marine Geology, Qingdao 266071, China
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Zhao G, Lu Q, Ye S, Yuan H, Ding X, Wang J. Assessment of heavy metal contamination in surface sediments of the west Guangdong coastal region, China. Mar Pollut Bull 2016; 108:268-274. [PMID: 27197765 DOI: 10.1016/j.marpolbul.2016.04.057] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Revised: 04/26/2016] [Accepted: 04/28/2016] [Indexed: 06/05/2023]
Abstract
Heavy metals (As, Cd, Cr, Cu, Hg, Pb, Zn), organic carbon and grain size of 237 surface sediment samples and one sediment core, taken from the west Guangdong coastal region in January 2008, were analyzed to evaluate the spatial distribution and pollution status. Results show that the ranges of the measured heavy metal concentrations in sediments are as follows: 8.33-39.49mg/kg for As, 0.1-1.49mg/kg for Cd, 33-108mg/kg for Cr, 11.5-78.8mg/kg for Cu, 0.04-0.26mg/kg for Hg, 21-73mg/kg for Pb, 56-248mg/kg for Zn. The heavy metal enrichment is closely associated with Corg and grain size. Both the metal enrichment factor and geoaccumulation index indicate that there was no detected pollution on metals As, Cr, Cu, Pb in our study area and a slight to moderate contamination of Cd, Hg and Zn. However, As, Cr and Cu have showed a certain risk.
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Affiliation(s)
- Guangming Zhao
- The Key Laboratory of Coastal Wetlands Biogeosciences, China Geologic Survey, Qingdao 266071, PR China; Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266061, PR China; College of Marine Geo-science, Ocean University of China, Qingdao 266100, PR China
| | - Qingyuan Lu
- School of Water Resources and Environmental Sciences, China University of Geosciences,100083, Beijing,China
| | - Siyuan Ye
- The Key Laboratory of Coastal Wetlands Biogeosciences, China Geologic Survey, Qingdao 266071, PR China; Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266061, PR China.
| | - Hongming Yuan
- The Key Laboratory of Coastal Wetlands Biogeosciences, China Geologic Survey, Qingdao 266071, PR China
| | - Xigui Ding
- The Key Laboratory of Coastal Wetlands Biogeosciences, China Geologic Survey, Qingdao 266071, PR China
| | - Jin Wang
- The Key Laboratory of Coastal Wetlands Biogeosciences, China Geologic Survey, Qingdao 266071, PR China
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Méndez-Fernandez P, Galluzzi Polesi P, Taniguchi S, de O Santos MC, Montone RC. Validating the use of biopsy sampling in contamination assessment studies of small cetaceans. Mar Pollut Bull 2016; 107:364-369. [PMID: 27113024 DOI: 10.1016/j.marpolbul.2016.04.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2016] [Revised: 04/07/2016] [Accepted: 04/10/2016] [Indexed: 05/11/2023]
Abstract
Remote biopsy sampling is the most common technique for acquiring samples from free-ranging marine mammals. However, such techniques may result in variable sampling being sometimes superficial skin and blubber biopsies. For decades, blubber has been used to monitor the exposure of marine mammals to persistent organic pollutants (POPs), but little is known regarding the variability of POPs as a function of blubber depth in small cetaceans and the available literature offers variable results. Thus, the aim of the present study was to validate biopsy sampling for monitoring contaminant concentrations in small, free-ranging cetaceans. Samples from the dorsal blubber of 10 incidentally captured Atlantic spotted dolphins (Stenella frontalis) were separated into two different layers (outer and inner) to investigate the influence of sampling depth on POP concentrations. POP concentrations were compared to those of the full blubber layer. The results revealed no significant differences in lipid content between males and females or among the inner, outer and full blubber layers (p>0.05). Moreover, the wet and lipid weight concentrations of all POP classes analysed [i.e. polychlorinated biphenyls (PCBs), dichlorodiphenyltrichloroethanes (DDTs), polybrominated diphenyl ethers (PBDEs), hexachlorobenzene (HCB), hexachlorocyclohexanes (HCHs), chlordanes (CHLs) and mirex] did not differ significantly with blubber depth (p>0.05). POP classes followed the same decreasing order of wet weight concentrations in blubber layers and full blubber: PCBs>DDTs>PBDEs>mirex>HCB>HCHs>CHLs. Moreover, there was a low degree of differentiation in the accumulation of POP congeners. The present findings indicated that the distribution of contaminants was homogenous with blubber depth, which validates the use of biopsy sampling for the assessment of contaminants in small cetaceans.
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Affiliation(s)
- Paula Méndez-Fernandez
- Laboratório de Química Orgânica Marinha, Instituto Oceanográfico, Universidade de São Paulo, São Paulo, SP 05508-120, Brazil.
| | - Paola Galluzzi Polesi
- Laboratório de Química Orgânica Marinha, Instituto Oceanográfico, Universidade de São Paulo, São Paulo, SP 05508-120, Brazil
| | - Satie Taniguchi
- Laboratório de Química Orgânica Marinha, Instituto Oceanográfico, Universidade de São Paulo, São Paulo, SP 05508-120, Brazil
| | - Marcos C de O Santos
- Laboratório de Biologia da Conservação de Mamíferos Aquáticos, Instituto Oceanográfico, Universidade de São Paulo, São Paulo, SP 05508-120, Brazil
| | - Rosalinda C Montone
- Laboratório de Química Orgânica Marinha, Instituto Oceanográfico, Universidade de São Paulo, São Paulo, SP 05508-120, Brazil
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Li H, Shi A, Zhang X. Particle size distribution and characteristics of heavy metals in road-deposited sediments from Beijing Olympic Park. J Environ Sci (China) 2015; 32:228-237. [PMID: 26040749 DOI: 10.1016/j.jes.2014.11.014] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2014] [Revised: 11/11/2014] [Accepted: 11/13/2014] [Indexed: 06/04/2023]
Abstract
Due to rapid urbanization and industrialization, heavy metals in road-deposited sediments (RDSs) of parks are emitted into the terrestrial, atmospheric, and water environment, and have a severe impact on residents' and tourists' health. To identify the distribution and characteristic of heavy metals in RDS and to assess the road environmental quality in Chinese parks, samples were collected from Beijing Olympic Park in the present study. The results indicated that particles with small grain size (<150 μm) were the dominant fraction. The length of dry period was one of the main factors affecting the particle size distribution, as indicated by the variation of size fraction with the increase of dry days. The amount of heavy metal (i.e., Cu, Zn, Pb and Cd) content was the largest in particles with small size (<150 μm) among all samples. Specifically, the percentage of Cu, Zn, Pb and Cd in these particles was 74.7%, 55.5%, 56.6% and 71.3%, respectively. Heavy metals adsorbed in sediments may mainly be contributed by road traffic emissions. The contamination levels of Pb and Cd were higher than Cu and Zn on the basis of the mean heavy metal contents. Specifically, the geoaccumulation index (Igeo) decreased in the order: Cd>Pb>Cu>Zn. This study analyzed the mobility of heavy metals in sediments using partial sequential extraction with the Tessier procedure. The results revealed that the apparent mobility and potential metal bioavailability of heavy metals in the sediments, based on the exchangeable and carbonate fractions, decreased in the order: Cd>Zn≈Pb>Cu.
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Affiliation(s)
- Haiyan Li
- Key Lab of Urban Storm-Water System and Water Environment, Beijing University of Civil Engineering and Architecture, Beijing 100044, China.
| | - Anbang Shi
- Key Lab of Urban Storm-Water System and Water Environment, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
| | - Xiaoran Zhang
- Key Lab of Urban Storm-Water System and Water Environment, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
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Zan F, Huo S, Zhang J, Zhang L, Xi B, Zhang L. Arsenic fractionation and contamination assessment in sediments of thirteen lakes from the East Plain and Yungui Plateau Ecoregions, China. J Environ Sci (China) 2014; 26:1977-1984. [PMID: 25288540 DOI: 10.1016/j.jes.2014.07.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2013] [Revised: 01/08/2014] [Accepted: 01/10/2014] [Indexed: 06/03/2023]
Abstract
Arsenic (As) fractions in the sediments of seven lakes from East Plain Ecoregion and six lakes from Yungui Plateau Ecoregion, China, were investigated. Results indicated that the total As concentrations in sediment samples of lakes of the East Plain Lake Ecoregion are higher than those of Yungui Plateau Lake Ecoregion. Residual As is the main fraction in sediment samples of lakes from both ecoregions, followed by reducible As and soluble or oxidizable As. The total As is correlated to oxidizable As and residual As in sediment samples from both lake ecoregions. As distribution in sediment samples of lakes of the East Plain Ecoregion appears to be affected by human activity, while the As origin mainly comes from natural sources in sediment samples of lakes in the Yungui Plateau Ecoregion. The potential ecological risk index and geoaccumulation index values suggest "low to moderate" risk degree and "unpolluted to moderately polluted" for As in the studied lake sediments.
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Affiliation(s)
- Fengyu Zan
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Science, Beijing 100012, China; College of Environmental Science and Engineering, Anhui Normal University, Anhui 241000, China.
| | - Shouliang Huo
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Science, Beijing 100012, China.
| | - Jingtian Zhang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Science, Beijing 100012, China
| | - Li Zhang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Science, Beijing 100012, China
| | - Beidou Xi
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Science, Beijing 100012, China.
| | - Lieyu Zhang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Science, Beijing 100012, China
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Qiao Y, Yang Y, Zhao J, Tao R, Xu R. Influence of urbanization and industrialization on metal enrichment of sediment cores from Shantou Bay, South China. Environ Pollut 2013; 182:28-36. [PMID: 23892069 DOI: 10.1016/j.envpol.2013.06.044] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2013] [Revised: 06/28/2013] [Accepted: 06/30/2013] [Indexed: 06/02/2023]
Abstract
Four sediment cores were collected to investigate geochemical sources and to assess enrichment and pollution of metals in sediments from Shantou Bay, an area experiencing rapid economic development on the Southeastern Coast of China. The results indicated that the concentrations of the majority of metals showed a decrease with depth, with overall maximum values in the top layers, and that different sampling locations in the Bay received slightly different types of inputs. Three major sources were identified by correlation analysis and principal component analysis: river inputs, metropolitan, and port facilities discharge. Calculation of a pollution load index revealed overall low values, but the enrichment factor values for Pb and Cd were typically high for all cores. The mean concentrations of Cu, Pb, Zn and to some extent Cd exceeded the Effects-Range-Low values in the majority of the cases, indicating that there were possible ecotoxicological risks to organisms in Shantou Bay.
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Affiliation(s)
- Yongmin Qiao
- Institute of Hydrobiology, Jinan University, Huangpu Street 601, Guangzhou 510632, PR China.
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