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Assessment of Heavy Metals in Agricultural Land: A Literature Review Based on Bibliometric Analysis. SUSTAINABILITY 2021. [DOI: 10.3390/su13084559] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
Abstract
A great amount of negative influence on human existence and environmental protection has been brought on by heavy metal pollution in agriculture soil. Thus, major awareness has been diverted to the evaluation of heavy metals (EHM) in agricultural land, which is used to improve the environment and ensure people’s health. Based on 3759 publications collected from the Web of Science Core CollectionTM (WoS), this paper’s aim is to illustrate a comprehensive bibliometric run-through and visualization of the subject of EHM. Contingent on influential authors, top institutions, keywords are discussed in detail. Afterwards, the ruling publications and focal assemblage of EHM and leading publications are analyzed to discover the main research topics, according to citation analysis and reference co-citation analysis. The main motive of the paper is to assist research workers interested in the area of EHM determine the ongoing potential research opportunities and hotspots.
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Dieterich A, Gaete H. Assessment of the genotoxicity of sediment elutriates from an aquatic ecosystem on Allium cepa: Limache stream in central Chile. ENVIRONMENTAL MONITORING AND ASSESSMENT 2021; 193:243. [PMID: 33821353 DOI: 10.1007/s10661-021-09029-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 03/28/2021] [Indexed: 06/12/2023]
Abstract
The aim of this study was to assess the genotoxic effects of sediment elutriates of an aquatic ecosystem. Sediment samples were taken from Limache stream, located in central Chile. The tests were carried out on sediment elutriates. Genotoxicity was determined by bioassay with Allium cepa. The percentage of germination, root growth, mitotic index, and frequency of chromosome aberrations were determined. The results show a significant increase in chromosome aberrations and decrease of the mitotic index in Allium cepa in all the sediment elutriates compared to the control. No significant differences were observed in the percentages of germination or root growth among the sediment elutriates. A negative correlation was found between the mitotic index and chromosomal aberrations. In conclusion, genotoxic variables are more sensitive than growth variables. The sediments contain chemical agents in bioavailable concentrations that produce genotoxic effects. Allium cepa test proved to be a sensitive indicator of genotoxic contaminants in sediment elutriates of the Limache stream in central Chile.
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Affiliation(s)
- Alejandra Dieterich
- Escuela de Ingeniería en Medioambiente, Facultad de Ingeniería, Universidad de Valparaíso Av, Brasil, 2140, Valparaíso, Chile
| | - Hernán Gaete
- Escuela de Ingeniería en Medioambiente, Facultad de Ingeniería, Universidad de Valparaíso Av, Brasil, 2140, Valparaíso, Chile.
- Centro de Investigación y Gestión de Recursos Naturales (CIGREN), Facultad de Ciencias, Universidad de Valparaíso Av. Gran Bretaña, 1111, Playa Ancha, Valparaíso, Chile.
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Yuan Z, Li Q, Ma X, Han M. Assessment of heavy metals contamination and water quality characterization in the Nanming River, Guizhou Province. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2021; 43:1273-1286. [PMID: 32910330 DOI: 10.1007/s10653-020-00710-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Accepted: 08/27/2020] [Indexed: 06/11/2023]
Abstract
The analysis to assess the water quality and potential ecological risks in sediments was carried out by means of the distribution characteristics of nutrient properties and heavy metals in water, and heavy metals in sediments from the Nanming River. The results from nutrient properties demonstrated that the majority of TN and TP exceeded the permissible limit and concentrated within the study area. The concentrations of heavy metal in water were lower than the permissible limits but may pose potential threat to aquatic ecosystems. Based on the potential ecological risk results of heavy metals in sediments, Cd posed risk to ecological environment, and the serious contaminations mainly existed in the center of Guiyang City. The multivariate statistical analyses were used to support the idea that the Upstream Area and Midstream Area were significantly dominated by NH4+, TP, TN and CODMn in water. Furthermore, landscape characteristics and hydrology condition better explained the certain trend of water quality. Finally, identifying relationship between nutrient properties and heavy metals that are key ecological components of ecosystem can potentially aid the advances for restoration of geochemical transformations and give rise to river restoration efforts.
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Affiliation(s)
- Zhenhui Yuan
- Key Laboratory for Information System of Mountainous Area and Protection of Ecological Environment of Guizhou Province, Guizhou Normal University, Guiyang, 550001, People's Republic of China
- Guizhou International Science and Technology Cooperation Base-International Joint Research Centre for Aquatic Ecology, Guiyang, 550001, People's Republic of China
| | - Qiuhua Li
- Key Laboratory for Information System of Mountainous Area and Protection of Ecological Environment of Guizhou Province, Guizhou Normal University, Guiyang, 550001, People's Republic of China.
- Guizhou International Science and Technology Cooperation Base-International Joint Research Centre for Aquatic Ecology, Guiyang, 550001, People's Republic of China.
| | - Xinyang Ma
- Key Laboratory for Information System of Mountainous Area and Protection of Ecological Environment of Guizhou Province, Guizhou Normal University, Guiyang, 550001, People's Republic of China
- Guizhou International Science and Technology Cooperation Base-International Joint Research Centre for Aquatic Ecology, Guiyang, 550001, People's Republic of China
| | - Mengshu Han
- Key Laboratory for Information and Computing Science of Guizhou Province, Guizhou Normal University, Guiyang, 550001, People's Republic of China
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Xiong B, Li R, Johnson D, Luo Y, Xi Y, Ren D, Huang Y. Spatial distribution, risk assessment, and source identification of heavy metals in water from the Xiangxi River, Three Gorges Reservoir Region, China. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2021; 43:915-930. [PMID: 32535759 DOI: 10.1007/s10653-020-00614-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2019] [Accepted: 06/04/2020] [Indexed: 05/28/2023]
Abstract
Heavy metals (HMs) contamination in rivers has attracted wide concern due to its persistence and potential risks to the natural environment and human health. In this study, eight HMs (As, Hg, Cu, Pb, Ca, Zn, Mn, and Ni) were measured by inductively coupled plasma mass spectrometry in 24 water samples to investigate HMs contamination levels in the Xiangxi River of the Yangtze River basin. A geographic information systems kriging interpolation method was used to reveal the spatial distribution of HMs contamination. The results indicate that most HMs occurred at acceptable levels below the Surface Water Quality Standard (GB 3838-2002), with the highest concentration (23.23 mg kg-1) of Mn being observed at sampling site X20. The values of the potential ecological risk index (RI) suggest that high potential ecological risks were present at sampling sites X1, X3, X4, X14, X16, X17, and X24, which reached moderate risk level. The highest value of RI (279.56) was observed at site X17. HM spatial distributions show that upstream pollution is more severe than downstream. The hazard index was below 1 for all HMs except for Mn, indicating that HMs in Xiangxi River pose a low risk to human health. HM source identification was accomplished using principal component analysis and Pearson's correlation. Cu, Cd, Ni, and Hg originate primarily from agriculture, while Pb, Zn, and As originate primarily from transportation and mining. This research provides a reference on the risks posed by HMs in Xiangxi River and will support efforts to protect and improve water quality in Xiangxi River.
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Affiliation(s)
- Biao Xiong
- College of Hydraulic and Environmental Engineering, China Three Gorges University, Yichang, 443002, Hubei, China
- Hubei Engineering Technology Research Center for Farmland Environment Monitoring, China Three Gorges University, Yichang, 443002, Hubei, China
- Engineering Research Center of Eco-Environment in Three Gorges Reservoir Region of Ministry of Education, China Three Gorges University, Yichang, 443002, Hubei, China
| | - Ruiping Li
- College of Hydraulic and Environmental Engineering, China Three Gorges University, Yichang, 443002, Hubei, China
- Hubei Engineering Technology Research Center for Farmland Environment Monitoring, China Three Gorges University, Yichang, 443002, Hubei, China
- Engineering Research Center of Eco-Environment in Three Gorges Reservoir Region of Ministry of Education, China Three Gorges University, Yichang, 443002, Hubei, China
| | - David Johnson
- Engineering Research Center of Eco-Environment in Three Gorges Reservoir Region of Ministry of Education, China Three Gorges University, Yichang, 443002, Hubei, China
| | - Yuhong Luo
- College of Hydraulic and Environmental Engineering, China Three Gorges University, Yichang, 443002, Hubei, China
- Hubei Engineering Technology Research Center for Farmland Environment Monitoring, China Three Gorges University, Yichang, 443002, Hubei, China
- Engineering Research Center of Eco-Environment in Three Gorges Reservoir Region of Ministry of Education, China Three Gorges University, Yichang, 443002, Hubei, China
| | - Ying Xi
- College of Hydraulic and Environmental Engineering, China Three Gorges University, Yichang, 443002, Hubei, China
- Hubei Engineering Technology Research Center for Farmland Environment Monitoring, China Three Gorges University, Yichang, 443002, Hubei, China
- Engineering Research Center of Eco-Environment in Three Gorges Reservoir Region of Ministry of Education, China Three Gorges University, Yichang, 443002, Hubei, China
| | - Dong Ren
- Hubei Engineering Technology Research Center for Farmland Environment Monitoring, China Three Gorges University, Yichang, 443002, Hubei, China
- Engineering Research Center of Eco-Environment in Three Gorges Reservoir Region of Ministry of Education, China Three Gorges University, Yichang, 443002, Hubei, China
| | - Yingping Huang
- College of Hydraulic and Environmental Engineering, China Three Gorges University, Yichang, 443002, Hubei, China.
- Hubei Engineering Technology Research Center for Farmland Environment Monitoring, China Three Gorges University, Yichang, 443002, Hubei, China.
- Engineering Research Center of Eco-Environment in Three Gorges Reservoir Region of Ministry of Education, China Three Gorges University, Yichang, 443002, Hubei, China.
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Hu Y, He N, Wu M, Wu P, He P, Yang Y, Wang Q, Wang M, Fang S. Sources and ecological risk assessment of the seawater potentially toxic elements in Yangtze River Estuary during 2009-2018. ENVIRONMENTAL MONITORING AND ASSESSMENT 2021; 193:44. [PMID: 33410980 DOI: 10.1007/s10661-020-08795-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Accepted: 12/10/2020] [Indexed: 06/12/2023]
Abstract
The purpose of this paper is to understand the sources of potentially toxic elements (PTE) and provide some suggestions to control PTE pollution. For this purpose, data from 30 monitoring stations for 2009-2018 were used to assess the PTE concentrations of Hg, Cu, Pb, Cd, Zn, and As in the Yangtze River Estuary. The PTE concentrations varied significantly (P < 0.05) by one-way ANOVA in the ranges of 0.002-0.224 (Hg, 0.043 ± 0.032), 0-9.700 (Cu, 1.600 ± 1.000), 0-3.900 (Pb, 1.000 ± 0.700), 0.002-0.370 (Cd, 0.050 ± 1.000), 0.100-85.000 (Zn, 14.000 ± 13.000), and 0.998-3.290 μg/L (As, 1.857 ± 0.455). Generally, the PTE concentrations decreased from year to year and were consistently satisfied the "grade-one seawater" quality standard after 2014. The concentrations of Cu, Cd, Zn, and As decreased as far from inshore, while increased closer to land in the estuary. Concentrations of Pb and Hg showed differences because of local industrial and aquacultural activities. This study identified three clusters and two PTE sources and provided some constructive suggestions for pollution control in PTE.
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Affiliation(s)
- Yang Hu
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
| | - Ning He
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
| | - Mingxuan Wu
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
- Fisheries and Life Science School, Shanghai Ocean University, Shanghai, 201306, China
| | - Pengling Wu
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
| | - Peimin He
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
- Research Center of Water Environment and Ecological Engineering, Shanghai Ocean University, Shanghai, 201306, China
| | - Ying Yang
- East China Sea Environmental Monitoring Center, SOA, Shanghai, 200137, China
| | - Qinyi Wang
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
| | - Maoqiu Wang
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
| | - Shubo Fang
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China.
- Research Center of Water Environment and Ecological Engineering, Shanghai Ocean University, Shanghai, 201306, China.
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56
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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. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 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] [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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57
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Jaiswal D, Pandey J. River ecosystem resilience risk index: A tool to quantitatively characterize resilience and critical transitions in human-impacted large rivers. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 268:115771. [PMID: 33069044 DOI: 10.1016/j.envpol.2020.115771] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 09/21/2020] [Accepted: 10/01/2020] [Indexed: 06/11/2023]
Abstract
Riverine ecosystems can have tipping points at which the system shifts abruptly to alternate states, although quantitative characterization is extremely difficult. Here we show, through critical analysis of two different reach scale (25 m and 50 m) studies conducted downstream of two point sources, two tributaries (main stem and confluences) and a 630 km segment of the Ganga River, that human-driven benthic hypoxia/anoxia generates positive feedbacks that propels the system towards a contrasting state. Considering three positive feedbacks-denitrification, sediment-P- and metal-release as level determinants and extracellular enzymes (β-D-glucosidase, protease, alkaline phosphatase and FDAase) as response determinants, we constructed a 'river ecosystem resilience risk index (RERRI)' to quantitatively characterize tipping points in large rivers. The dynamic fit intersect models indicated that the RERRI<4 represents a normal state, 4-18 a transition where recovery is possible, and >18 an overstepped condition where recovery is not possible. The resilience risk index, developed for the first time for a lotic ecosystem, can be a useful tool for understanding the tipping points and for adaptive and transformative management of large rivers.
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Affiliation(s)
- Deepa Jaiswal
- Ganga River Ecology Research Laboratory, Environmental Science Division, Centre of Advanced Study in Botany, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
| | - Jitendra Pandey
- Ganga River Ecology Research Laboratory, Environmental Science Division, Centre of Advanced Study in Botany, Institute of Science, Banaras Hindu University, Varanasi, 221005, India.
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58
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Ngatia LW, De Oliveira LM, Betiku OC, Fu R, Moriasi DN, Steiner JL, Verser JA, Taylor RW. Relationship of arsenic and chromium availability with carbon functional groups, aluminum and iron in Little Washita River Experimental Watershed Reservoirs, Oklahoma, USA. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 207:111468. [PMID: 33254384 DOI: 10.1016/j.ecoenv.2020.111468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 10/02/2020] [Accepted: 10/06/2020] [Indexed: 06/12/2023]
Abstract
Sediment from three reservoirs located in the Little Washita River Experimental Watershed (LWREW) in Oklahoma, USA with contrasting dominant land uses were analyzed for total and extractable concentrations of arsenic (As) and chromium (Cr), and the potential ecologic risk to benthic organisms. Extractable As ranged from 0.24 to 1.21 mg kg-1, in the order grazing>cropland>forest and 0.13-0.58 mg kg-1 for extractable Cr, in the order of forest>grazing>cropland. However, only approximately < 1.5% of total As and < 4% of total Cr were extractable. Total As ranged from 16.2 to 141 mg kg-1 and total Cr ranged from 5.06 to 40.1 mg kg-1 both in the order of cropland>grazing>forest. The sediment exhibited an alkaline pH (8.0-8.7). As sorption exhibited a positive relationship with Al (r = 0.9995; P = 0.0001), Fe (r = 0.9829; P = 0.0001), and C (r = 0.4090; P = 0.0017) and Cr correlated positively with Al (r = 0.9676 P = 0.0001), Fe (r = 0.9818; P = 0.0001), and C (r = 0.3368; P = 0.0111). In addition, both As and Cr exhibited positive relationships with carbon (C) functional groups in the order of O-alkyl C> methoxyl C> alkyl C> aromatic C> carboxyl C> phenolic C. The sediment concentration analysis results illustrated that As in all reservoirs exceeded their respective Threshold Effect Level (TEL) and/or Probable Effect Level (PEL) indicating that existing concentrations of metals in these sediments were sufficiently high to cause adverse effects. However, Cr concentrations in all reservoirs evaluated was lower compared to the TEL and PEL.
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Affiliation(s)
- L W Ngatia
- Center for Water Resources, College of Agriculture and Food Sciences, Florida A&M University, Tallahassee, FL 32307, USA.
| | - L M De Oliveira
- Center for Water Resources, College of Agriculture and Food Sciences, Florida A&M University, Tallahassee, FL 32307, USA
| | - O C Betiku
- Center for Water Resources, College of Agriculture and Food Sciences, Florida A&M University, Tallahassee, FL 32307, USA
| | - R Fu
- National High Magnetic Field Laboratory, Florida State University, 1800 E. Paul Dirac Drive, Tallahassee, FL 32310, USA
| | - D N Moriasi
- USDA-ARS Grazinglands Research Laboratory, 7207 W. Cheyenne Street, El Reno, OK 73036, USA
| | - J L Steiner
- Agronomy Department, Kansas State University, Manhattan, KS 66506, USA
| | - J A Verser
- USDA-ARS Grazinglands Research Laboratory, 7207 W. Cheyenne Street, El Reno, OK 73036, USA
| | - R W Taylor
- Center for Water Resources, College of Agriculture and Food Sciences, Florida A&M University, Tallahassee, FL 32307, USA
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Niu Y, Chen F, Li Y, Ren B. Trends and Sources of Heavy Metal Pollution in Global River and Lake Sediments from 1970 to 2018. REVIEWS OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2021; 257:1-35. [PMID: 33866419 DOI: 10.1007/398_2020_59] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Heavy metal pollution is a global problem although its sources and trends differ by region and time. To data, no published research has reported heavy metal pollution in global rivers and lakes. This study reviewed past sampling data across six continents from 1970 to 2018 and analyzed the trends and sources of 10 heavy metal species in sediments from 289 rivers and 133 lakes. Collectively, river sediments showed increasing trends in Cd, Cr, Ni, Mn, and Co and decreasing trends in Hg, indicating that rivers acted as a sink for the former and a source for the latter. Lake sediments showed increasing trends in Pb, Hg, Cr, and Mn, and decreasing trends in Cd, Zn, and As, indicating that lakes acted as a sink for the former and a source for the latter. Due to difference in natural backgrounds and development stage in continents, mean metal concentrations were generally higher in Europe and North America than in Africa, Asia, and South America. Principal component analysis showed that main metal source was mining and manufacturing from the 1970s to 1990s and domestic waste discharge from the 2000s to 2010s. Metal sources in sediments differed greatly by continent, with rock weathering dominant in Africa, mining and manufacturing dominant in North America, and domestic waste discharge dominant in Asia and Europe. Global trends in sediment metal loads and pollution-control measures suggest that the implementation of rigorous standards on metal emissions, limitations on metal concentrations in manufactured products, and the pretreatment of metal-contaminated waste have been effective at controlling heavy metal pollution in rivers and lakes. Thus, these efforts should be extended globally.
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Affiliation(s)
- Yandong Niu
- College of Resources and Environment, Hunan Agricultural University, Changsha, China
- Hunan Academy of Forestry, Changsha, China
| | - Falin Chen
- College of Resources and Environment, Hunan Agricultural University, Changsha, China
| | - Youzhi Li
- College of Resources and Environment, Hunan Agricultural University, Changsha, China.
| | - Bo Ren
- College of Resources and Environment, Hunan Agricultural University, Changsha, China
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Silva DS, Cerqueira UMFM, Aguiar RM, Carneiro PLS, Bezerra MA. Characterization, fractionation and mobility of trace elements in surface sediments of the Jequiezinho River, Bahia, Brazil. AN ACAD BRAS CIENC 2020; 92:e20190558. [PMID: 33263660 DOI: 10.1590/0001-3765202020190558] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Accepted: 10/04/2019] [Indexed: 11/22/2022] Open
Abstract
The Jequiezinho River is a temporary river. In the urban stretch it is impacted, with perennial flow coming from domestic sewage and rainwater. This study evaluated the geochemical distribution and potential mobility of some metals (Pb, Co, Ca, Cr, Mg, Cu, Fe, Mn, Ni and Zn) in sediments of the Jequiezinho River. Sediment samples were collected at ten different sites along the river. The silt/clay fraction was submitted to acid digestion and sequential extraction with analysis by FAAS. The results indicated that, in the more densely populated region, there was an increase in concentrations of Cr, Ni, Cu, Co, Pb, and Zn. The contents found were compared with the guideline values of TEL (Threshold Effect Levels) and PEL (Probable Effect Levels), not exceeding the maximum reference limits. The results indicated that Ca, Mg, Mn and Fe presented greater susceptibility to mobility and bioavailability suggesting the geochemical origin responsible for these high concentrations. The multivariate analysis showed that Cr, Ni, Cu, Co, Pb, and Zn presented a similar behavior, especially in locations with higher population density and the discharge of non-discriminated effluents, reflecting the anthropogenic contributions as responsible for the concentration increase.
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Affiliation(s)
- Darci S Silva
- Universidade Estadual do Sudoeste da Bahia, Departamento de Ciências Biológicas, Av. José Moreira Sobrinho, s/n, 45206-191 Jequié, Bahia, Brazil
| | - Uilliam M F M Cerqueira
- Universidade Estadual do Sudoeste da Bahia, Departamento de Ciências e Tecnologia, Av. José Moreira Sobrinho, s/n, 45206-191 Jequié, Bahia, Brazil
| | - Rosane M Aguiar
- Universidade Estadual do Sudoeste da Bahia, Departamento de Ciências e Tecnologia, Av. José Moreira Sobrinho, s/n, 45206-191 Jequié, Bahia, Brazil
| | - Paulo Luis S Carneiro
- Universidade Estadual do Sudoeste da Bahia, Departamento de Ciências Biológicas, Av. José Moreira Sobrinho, s/n, 45206-191 Jequié, Bahia, Brazil
| | - Marcos A Bezerra
- Universidade Estadual do Sudoeste da Bahia, Departamento de Ciências e Tecnologia, Av. José Moreira Sobrinho, s/n, 45206-191 Jequié, Bahia, Brazil
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61
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Morgado V, Palma C, Bettencourt da Silva RJN. Monte Carlo bottom-up evaluation of global instrumental quantification uncertainty: Flexible and user-friendly computational tool. CHEMOSPHERE 2020; 258:127285. [PMID: 32540537 DOI: 10.1016/j.chemosphere.2020.127285] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Revised: 05/24/2020] [Accepted: 05/31/2020] [Indexed: 06/11/2023]
Abstract
Many instrumental methods of analysis require the daily collection of calibrator signals to calibrate their response. The quality of quantifications based on these calibrations depends on calibrators quality, instrumental signal performance and regression model fitness. Linear Ordinary Least Squares (LOLS), Linear Weighted Least Squares (LWLS) or Linear Bivariate Least Squares (LBLS) regression models can be used to calibrate and evaluate the uncertainty from instrumental quantifications, but require the fulfilment of some assumptions, namely, constant signal variance (LOLS), high calibrators quality (LOLS and LWLS) and linear variation of instrumental signal with calibrator values. The LBLS is flexible regarding calibrator values uncertainty and correlation but requires the determination of calibrator values and signals covariances. This work developed a computational tool for the bottom-up evaluation of global instrumental quantifications uncertainty which simulates calibrator values correlations from entered calibrators preparation procedure and simulates calibrators and samples signals precision from prior precision data, allowing accurate uncertainty evaluation from a few replicate signals of the daily calibration. The used signal precision models were built from previously observed repeatability variation throughout the calibration interval adjusted to daily precision condition from a residual standard deviation adjustment factor. This approach was implemented in a user-friendly MS-Excel file and was successfully applied to the analysis of As, Cd, Ni and Pb in marine sediment extracts by Absorption Spectroscopy. Evaluations were tested by the metrological compatibility of estimated and reference values of control standards for confidence levels of 95% and 99%. The success rates of the compatibility tests were statistically equivalent to the confidence level (p-value>0.01).
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Affiliation(s)
- Vanessa Morgado
- Instituto Hidrográfico, Rua Das Trinas, 49, 1249-093, Lisboa, Portugal; Centro de Química Estrutural, Faculdade de Ciências da Universidade de Lisboa, Ed. C8, Campo Grande, Portugal, 1749-016, Lisboa, Portugal.
| | - Carla Palma
- Instituto Hidrográfico, Rua Das Trinas, 49, 1249-093, Lisboa, Portugal.
| | - Ricardo J N Bettencourt da Silva
- Centro de Química Estrutural, Faculdade de Ciências da Universidade de Lisboa, Ed. C8, Campo Grande, Portugal, 1749-016, Lisboa, Portugal.
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Palash MAU, Islam MS, Bayero AS, Taqui SN, Koki IB. Evaluation of trace metals concentration and human health implication by indigenous edible fish species consumption from Meghna River in Bangladesh. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2020; 80:103440. [PMID: 32585422 DOI: 10.1016/j.etap.2020.103440] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 06/09/2020] [Accepted: 06/19/2020] [Indexed: 06/11/2023]
Abstract
This study is focused on the determination of trace metals (Cr, Cu, Zn, As, Pb, and Cd) concentrations of nine different indigenous fish species of Meghna River in Bangladesh to know the possible risk in human consumption. Fishes' wet muscles samples were analyzed to evaluate the level of trace metal concentrations. The concentrations (mg kg-1 w/w) of the six selected trace metals were in the order Zn (1.42 ± 0.12) > Cr (1.31 ± 0.08) > Cu (0.92 ± 0.09) > Pb (0.54 ± 0.07) > Cd (0.51 ± 0.07) > As (0.47 ± 0.02). The results revealed that all the selected trace metals were below the maximum permissible limits recommended by the reference standards. The fish species may pose no risk with respect to the Estimated Daily Intake (EDI). Target hazard quotient (THQ) values for Cr, Cu, Zn, Pb, and Cd in all the fish species were <1.0, except for As which is dominantly organic in fishes. Both adults and children are vulnerable to carcinogenic health threat due to Cd exposure.
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Affiliation(s)
- Md Amin Ullah Palash
- Department of Fisheries and Marine Science, Noakhali Science and Technology University, Noakhali-3814, Bangladesh
| | - Md Saiful Islam
- Department of Fisheries and Marine Science, Noakhali Science and Technology University, Noakhali-3814, Bangladesh.
| | - Amina Salihi Bayero
- Department of Chemistry, Yusuf Maitama Sule University Kano, PMB 3220, Kano, Nigeria
| | - Syed Noeman Taqui
- Department of Chemistry, University Malaya, Kuala Lumpur, 50603, Malaysia
| | - Isa Baba Koki
- Department of Chemistry, Yusuf Maitama Sule University Kano, PMB 3220, Kano, Nigeria
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63
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Rastegari Mehr M, Keshavarzi B, Moore F, Hooda PS, Busquets R, Ghorbani Z. Arsenic in the rock-soil-plant system and related health risk in a magmatic-metamorphic belt, West of Iran. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2020; 42:3659-3673. [PMID: 32440917 DOI: 10.1007/s10653-020-00599-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 05/06/2020] [Indexed: 06/11/2023]
Abstract
Following earlier reports of water contamination and arsenic (As) toxicity symptoms in residents of Kurdistan Province, As was determined in rock, soil and plant samples to investigate its fate from rock to crops and its potential effects on human health. Total As content ranged from 4.9 to 10,000 mg/kg, 7.7-430 mg/kg and < 0.05-25,079 µg/kg (dry weight) in rock, soil and plant samples, respectively. The Qorveh-Bijar region data indicated that magmatic differentiation has enriched late magmatic fluids in As. High rare earth elements concentration, dissociation coefficient, and positive Eu anomaly in volcanic rocks, indicated the prevalence of intermediate to felsic composition. The highest As concentration was measured in travertine. In soil, As average level in Qorveh and Bijar was 48.5 and 107 mg/kg, respectively. Higher pollution index and geoaccumulation index (Igeo) were also calculated for Bijar County. The As concentration in crop samples was greater than the recommended maximum permissible concentration for foodstuff. Mann-Whitney U test revealed significant differences between As concentration in different plant species and no difference between plants in Bijar and Qorveh. Also, alfalfa displayed the highest biological accumulation coefficient among the investigated plants. The calculated chronic daily intake of As in Bijar County was higher than the recommended levels for wheat and barley grains. Moreover, the hazard quotient (HQ) and incremental lifetime cancer risk assessments revealed high non-cancer (HQ > 1 for both adults and children) and cancer (particularly for barley in Bijar) risks for inhabitants via consumption of As contaminated crops cultivated in the study area.
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Affiliation(s)
- Meisam Rastegari Mehr
- Department of Applied Geology, Faculty of Earth Science, Kharazmi University, 15614, Tehran, Iran.
| | - Behnam Keshavarzi
- Department of Earth Sciences, College of Sciences, Shiraz University, 71454, Shiraz, Iran.
| | - Farid Moore
- Department of Earth Sciences, College of Sciences, Shiraz University, 71454, Shiraz, Iran
| | - Peter S Hooda
- School of Geography, Geology and the Environment, Kingston University London, Kingston Upon Thames, KT1 2EE, UK
| | - Rosa Busquets
- School of Life Sciences, Pharmacy and Chemistry, Kingston University London, Kingston Upon Thames, KT1 2EE, UK
| | - Zohreh Ghorbani
- Department of Earth Sciences, University of Western Ontario, 1151 Richmond St, London, ON, N6A 5B7, Canada
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64
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Zhang T, Li L, Xu F, Chen X, Du L, Li Y. Assessing the environmental risk, fractions, and remobilization of copper and zinc in the sediments of the Jialing River-an important tributary of the Yangtze River in China. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:39283-39296. [PMID: 32648220 DOI: 10.1007/s11356-020-09963-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 06/30/2020] [Indexed: 06/11/2023]
Abstract
Copper (Cu) and zinc (Zn) are two heavy metal pollutants that pose a serious risk in the Jialing River. Cu and Zn are transported into the sediment primarily due to the activities of the mining and smelting industries. In this study, we employed the diffusive gradient in thin films (DGT) technique, sequential extraction, and two assessment methods to evaluate the remobilization, fractions, and environmental risk in the downstream section of the Jialing River. The total concentrations of Cu and Zn in the four study areas followed the order S3 > S2 > S4 > S1, and the assessment results indicated that Cu and Zn presented a low environmental risk in the study area. Cu and Zn were primarily bound to the Fe/Mn oxide fraction (F2) and the residual fraction (F4). The results of the DGT probe showed a clear vertical distribution of Cu and Zn in the sediment (from 3 to - 12 cm), and both elements showed obvious increasing trends at the bottom of the probe. The correlation analysis indicated that CDGT-Cu correlated well with CDGT-Zn (r = 0.834, p < 0.01). The flux results showed that the sediment in the downstream section of the Jialing River is a major source of Cu and Zn and that there is a potential risk of release to the overlying water. Further analysis found that CDGT-Fe was negatively correlated with CDGT-Cu and CDGT-Zn, indicating that Fe may influence the remobilization of these metals. In addition, a hotspot of CDGT-Cu and CDGT-Zn at the bottom of the probe corresponded with a dark area in the AgI gel measuring CDGT-S. These results indicate that Fe and S are factors that mitigate the release of Cu and Zn from sediments.
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Affiliation(s)
- Tuo Zhang
- College of Environmental Science & Engineering, China West Normal University, Nanchong, 637009, Sichuan, China.
| | - Lijuan Li
- Institute of Agricultural Environment and Sustainable Development, Chinese Academy of Agriculture Sciences, Beijing, 100081, China
| | - Fei Xu
- College of Environmental Science & Engineering, China West Normal University, Nanchong, 637009, Sichuan, China
| | - Xiangyu Chen
- College of Environmental Science & Engineering, China West Normal University, Nanchong, 637009, Sichuan, China
| | - Li Du
- College of Environmental Science & Engineering, China West Normal University, Nanchong, 637009, Sichuan, China
| | - Yunxiang Li
- College of Environmental Science & Engineering, China West Normal University, Nanchong, 637009, Sichuan, China
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65
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Yang HJ, Jeong HJ, Bong KM, Jin DR, Kang TW, Ryu HS, Han JH, Yang WJ, Jung H, Hwang SH, Na EH. Organic matter and heavy metal in river sediments of southwestern coastal Korea: Spatial distributions, pollution, and ecological risk assessment. MARINE POLLUTION BULLETIN 2020; 159:111466. [PMID: 32892913 DOI: 10.1016/j.marpolbul.2020.111466] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 07/08/2020] [Accepted: 07/08/2020] [Indexed: 06/11/2023]
Abstract
This study identifies the impact of river sediments on coastal ecosystems in the southwestern coastal region of Korea. Surface sediments were analyzed for their spatial distributions of organic matter, nutrients, and heavy metal concentrations. Furthermore, pollutants were identified according to the pollution load index (PLI) and potential ecological risk index (RI). Concentrations did not show serious pollution levels compared to generalized guidelines; however, some sites exceeded the PLI pollution standard, and were also identified as potential ecological risks. Through cluster analyses the sediment sites were classified into three groups: rivers with relatively high concentrations of organic matter and nutrients, rivers affected largely by artificial heavy metal pollution, and rivers with low levels of pollution by organic matter, nutrients, and heavy metals. It is evident that continuous monitoring and management are required to prevent major pollution from industrial complexes, agriculture, and commercial activities in the regions near these rivers.
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Affiliation(s)
- Hae Jong Yang
- Yeongsan River Environment Research Center, National Institute of Environmental Research, Gwangju 61011, Republic of Korea
| | - Hyo Jin Jeong
- Yeongsan River Environment Research Center, National Institute of Environmental Research, Gwangju 61011, Republic of Korea
| | - Ki Moon Bong
- Yeongsan River Environment Research Center, National Institute of Environmental Research, Gwangju 61011, Republic of Korea
| | - Dal Rae Jin
- Water Environmental Engineering Research Division, National Institute of Environmental Research, Incheon 22689, Republic of Korea
| | - Tae-Woo Kang
- Yeongsan River Environment Research Center, National Institute of Environmental Research, Gwangju 61011, Republic of Korea.
| | - Hui-Seong Ryu
- Yeongsan River Environment Research Center, National Institute of Environmental Research, Gwangju 61011, Republic of Korea
| | - Jong Hak Han
- Yeongsan River Environment Research Center, National Institute of Environmental Research, Gwangju 61011, Republic of Korea
| | - Won Jun Yang
- Yeongsan River Environment Research Center, National Institute of Environmental Research, Gwangju 61011, Republic of Korea
| | - Heejung Jung
- Yeongsan River Environment Research Center, National Institute of Environmental Research, Gwangju 61011, Republic of Korea
| | - Soon Hong Hwang
- Yeongsan River Environment Research Center, National Institute of Environmental Research, Gwangju 61011, Republic of Korea
| | - Eun Hye Na
- Yeongsan River Environment Research Center, National Institute of Environmental Research, Gwangju 61011, Republic of Korea
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66
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Zhang T, Li L, Xu F, Chen X, Du L, Wang X, Li Y. Assessing the remobilization and fraction of cadmium and lead in sediment of the Jialing River by sequential extraction and diffusive gradients in films (DGT) technique. CHEMOSPHERE 2020; 257:127181. [PMID: 32485515 DOI: 10.1016/j.chemosphere.2020.127181] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Revised: 05/19/2020] [Accepted: 05/21/2020] [Indexed: 06/11/2023]
Abstract
Cadmium (Cd) and lead (Pb) are two typical heavy metals of the Jialing River, and their threat to the river has been considered by the government in recent years. In this study, the diffusive gradient in thin films (DGT) technique and sequential extraction were employed together to analyse the remobilization and fraction of Cd and Pb in the sediments. The total concentration of Cd and Pb in four sampling sites both followed the order S3>S4>S2>S1. The sequential extraction results indicated that large amounts of Cd and Pb (over 50% of the total concentration) were bound to the exchangeable and reducible fraction. The DGT results showed that both Cd and Pb presented a significant increasing trend at the bottom of the DGT probe (-10 cm to -12 cm) and that the two metals had a significant positive correlation (r = 0.831, p < 0.01). The apparent diffusive flux result indicated that Cd and Pb had a potential risk of release from surface sediments. A significant correlation was observed between the DGT-labile fraction and sequential extraction at the surface sediments. A further correlation analysis found that the concentration of labile Cd/Pb measured by DGT (CDGT-Cd and CDGT-Pb) had a strong negative correlation with CDGT-Fe, and this process was mainly mitigated by the iron oxides in the sediments. In addition, the correspondence of a "dark area" of AgI gel with corresponding "hotspots" of Chelex gel also proved that the release of Cd and Pb may regulate the dissolved sulfide in the sediments.
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Affiliation(s)
- Tuo Zhang
- College of Environmental Science & Engineering, China West Normal University, Nanchong, Sichuan, 637009, China.
| | - Lijuan Li
- Institute of Agricultural Environment and Sustainable Development, Chinese Academy of Agriculture Sciences, Beijing, 100081, China
| | - Fei Xu
- College of Environmental Science & Engineering, China West Normal University, Nanchong, Sichuan, 637009, China
| | - Xiangyu Chen
- College of Environmental Science & Engineering, China West Normal University, Nanchong, Sichuan, 637009, China
| | - Li Du
- College of Environmental Science & Engineering, China West Normal University, Nanchong, Sichuan, 637009, China
| | - Xinjian Wang
- College of Environmental Science & Engineering, China West Normal University, Nanchong, Sichuan, 637009, China
| | - Yunxiang Li
- College of Environmental Science & Engineering, China West Normal University, Nanchong, Sichuan, 637009, China
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67
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Rahman Z. An overview on heavy metal resistant microorganisms for simultaneous treatment of multiple chemical pollutants at co-contaminated sites, and their multipurpose application. JOURNAL OF HAZARDOUS MATERIALS 2020; 396:122682. [PMID: 32388182 DOI: 10.1016/j.jhazmat.2020.122682] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Revised: 04/02/2020] [Accepted: 04/07/2020] [Indexed: 05/24/2023]
Abstract
Anthropogenic imbalance of chemical pollutants in environment raises serious threat to all life forms. Contaminated sites often possess multiple heavy metals and other types of pollutants. Elimination of chemical pollutants at co-contaminated sites is imperative for the safe ecosystem functions, and simultaneous removal approach is an attractive scheme for their remediation. Different conventional techniques have been applied as concomitant treatment solution but fall short at various parameters. In parallel, use of microorganisms offers an innovative, cost effective and ecofriendly approach for simultaneous treatment of various chemical pollutants. However, microbiostasis due to harmful effects of heavy metals or other contaminants is a serious bottleneck facing remediation practices in co-contaminated sites. But certain microorganisms have unique mechanisms to resist heavy metals, and can act on different noxious wastes. Considering this significant, my review provides information on different heavy metal resistant microorganisms for bioremediation of different chemical pollutants, and other assistance. In this favour, the integrated approach of simultaneous treatment of multiple heavy metals and other environmental contaminants using different heavy metal resistant microorganisms is summarized. Further, the discussion also intends toward the use of heavy metal resistant microorganisms associated with industrial and environmental applications, and healthcare. PREFACE: Simultaneous treatment of multiple chemical pollutants using microorganisms is relatively a new approach. Therefore, this subject was not well received for review before. Also, multipurpose application of heavy metal microorganisms has certainly not considered for review. In this regard, this review attempts to gather information on recent progress on studies on different heavy metal resistant microorganisms for their potential of treatment of co-contaminated sites, and multipurpose application.
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Affiliation(s)
- Zeeshanur Rahman
- Department of Botany, Zakir Husain Delhi College, University of Delhi, Delhi, 110002, India.
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68
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Meng D, Wu J, Xu Z, Xu Y, Li H, Jin W, Zhang J. Effect of passive ventilation on the performance of unplanted sludge treatment wetlands: heavy metal removal and microbial community variation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:31665-31676. [PMID: 32500490 DOI: 10.1007/s11356-020-09288-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 05/13/2020] [Indexed: 06/11/2023]
Abstract
Sludge treatment wetlands (STWs) have been applied worldwide to treat excess sludge; however, the performance of STWs is generally limited by weather partly due to the plants vegetated on the STWs. In this study, ventilation is suggested to assist unvegetated STWs. Solid samples from different depths were analysed. Additionally, the variation of microbial community in STW unit was analysed and the fate of heavy metals in the sludge was determined. Results indicate that the STW unit with suitable parameters has better performance in stabilising and maturing the sludge than planted STW, which may contribute to the variation of the microbial community; additionally, ventilation exerts a positive influence on these bacteria during the variation of microbial community and on heavy metal removal through the substrate and positively impacts the Cd and Pb in reduction state. Furthermore, ventilation decreases the bioavailability of Cr. With ventilation in STWs, Bacillus and Streptomyces play a necessary role in enhancing the possibility of sludge to be used as microbial inoculants.
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Affiliation(s)
- Daizong Meng
- College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, Tongji University, Shanghai, 200092, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, China
| | - Jun Wu
- College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, Tongji University, Shanghai, 200092, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, China
| | - Zuxin Xu
- College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China
| | - Yixiao Xu
- College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China
| | - Huaizheng Li
- College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China.
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, Tongji University, Shanghai, 200092, China.
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, China.
| | - Wei Jin
- College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China
- Key Laboratory of Yangtze River Water Environment, Ministry of Education, Tongji University, Shanghai, 200092, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, China
| | - Jin Zhang
- Institute of Groundwater and Earth Sciences, Jinan University, Guangzhou, 510632, China
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69
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Zuo TT, Jin HY, Zhang L, Liu YL, Nie J, Chen BL, Fang CF, Xue J, Bi XY, Zhou L, Shen MR, Shi SM, Ma SC. Innovative health risk assessment of heavy metals in Chinese herbal medicines based on extensive data. Pharmacol Res 2020; 159:104987. [DOI: 10.1016/j.phrs.2020.104987] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 05/26/2020] [Accepted: 05/28/2020] [Indexed: 11/27/2022]
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70
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Assessment of trace elements natural enrichment in topsoil by some Italian case studies. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-03214-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
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71
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Guo C, Chen Y, Xia W, Qu X, Yuan H, Xie S, Lin LS. Eutrophication and heavy metal pollution patterns in the water suppling lakes of China's south-to-north water diversion project. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 711:134543. [PMID: 31812425 DOI: 10.1016/j.scitotenv.2019.134543] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 09/17/2019] [Accepted: 09/17/2019] [Indexed: 06/10/2023]
Abstract
This study used non-supervised machine learning self-organizing maps (SOM) in conjunction with traditional multivariate statistical techniques (e.g., hierarchical cluster analysis, principle component analysis, Pearson's correlation analysis) to investigate spatio-temporal patterns of eutrophication and heavy metal pollution in the water supplying lakes (i.e., the Gao-Bao-Shaobo Lake, GBSL) of the eastern route of China's South-to-North Water Diversion Project (SNWDP-ER). A total of 28 water quality parameters were seasonally monitored at 33 sampling sites in the GBSL during 2016 to 2017 (i.e., 132 water samples were collected in four seasons). The results indicated that: 1) spatially, the western and south-western GBSL was relatively more eutrophic and polluted with heavy metals; and 2) temporally, the lakes suffered from high risks of heavy metal contamination in spring, but eutrophication in summer while water quality in winter was the best among the four seasons. Two main potential sources of pollution and transport routes were identified and discussed based on the pollution patterns. These findings contributed considerably to providing in-depth understanding of water pollution patterns, as well as potential pollution sources in the water-supplying region. Such understanding is crucial for developing pollution control and management strategies for this mega inter-basin water transfer project.
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Affiliation(s)
- Chuanbo Guo
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei 430072, China
| | - Yushun Chen
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Wentong Xia
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiao Qu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hui Yuan
- Gao-Bao-Shaobo Lake Fisheries Management Committee of Jiangsu Province, Yangzhou, Jiangsu 225009, China
| | - Songguang Xie
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, Hubei 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lian-Shin Lin
- Department of Civil and Environmental Engineering, West Virginia University, Morgantown, WV 26506-6103, USA
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72
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Zhan S, Wu J, Wang J, Jing M. Distribution characteristics, sources identification and risk assessment of n-alkanes and heavy metals in surface sediments, Tajikistan, Central Asia. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 709:136278. [PMID: 31905570 DOI: 10.1016/j.scitotenv.2019.136278] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 12/04/2019] [Accepted: 12/20/2019] [Indexed: 06/10/2023]
Abstract
Central Asia is the global hotspot resulting from either a scarcity of natural resources or environmental degradation. Tajikistan, however, is called the "central Asian water tower", is rich in water and minerals and plays a very important role in the ecology of Central Asia. Given the soil contamination issues in Tajikistan, the spatial distributions and sources of n-alkanes and heavy metals in surface sediments of Tajikistan were investigated. The evaluation of n-alkane and elemental indices helped to elucidate the origins of complex pollutants. The n-alkane indices were allowed to identify biogenic and petrogenic sources, and statistical methods were used to identify natural and anthropogenic sources of heavy metals. Enrichment factors were used to assess the contamination statuses of heavy metals. The results indicated that n-alkanes in the cluster I (sample 23) and II (samples 1, 5, 12, 14, 18, 22, 29, and 30) samples were affected by crude oil or incomplete fossil fuel combustion. Biomarker indices indicated strong contributions of petroleum sources to the n-alkanes in samples 14, 18, 23, and 29, but that n-alkanes in the other samples were mainly derived from higher plant waxes. Statistical analyses showed that cadmium (Cd), chromium (Cr), copper (Cu), nickel (Ni), and zinc (Zn) were originated from industrial activities. Phosphorus (P) was closely related to local agricultural activities. Manganese (Mn) was derived from mining activities and industrial wastewater. The enrichment factors indicated that sediment was zero to minor contamination with Cr, Cu, Ni, and Pb, but moderate contamination with Cd and significant contamination with Zn. Interestingly, the samples contaminated with Cd included the cluster I and II samples, meaning the source of Cd contamination had agreed with the results of n-alkanes. The combined evaluation of n-alkanes and heavy metals suggested that their pollutant sources were crude oil contamination.
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Affiliation(s)
- Shuie Zhan
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences (CAS), Nanjing 210008, China; University of Chinese Academy of Sciences, Beijing 100049, China; Research Center for Ecology and Environment of Central Asia, CAS, Urumqi 830011, China
| | - Jinglu Wu
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences (CAS), Nanjing 210008, China; Research Center for Ecology and Environment of Central Asia, CAS, Urumqi 830011, China.
| | - Jingzhong Wang
- Experiment and Practice Teaching Center, Heibei GEO University, Shijiazhuang 050031, China; Research Center for Ecology and Environment of Central Asia, CAS, Urumqi 830011, China; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, CAS, Xi'an 710061, China
| | - Miao Jing
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences (CAS), Nanjing 210008, China; Research Center for Ecology and Environment of Central Asia, CAS, Urumqi 830011, China
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73
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Jaiswal D, Pandey J. Benthic hypoxia in anthropogenically-impacted rivers provides positive feedback enhancing the level of bioavailable metals at sediment-water interface. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 258:113643. [PMID: 31784273 DOI: 10.1016/j.envpol.2019.113643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 10/15/2019] [Accepted: 11/16/2019] [Indexed: 06/10/2023]
Abstract
We investigated the effect of hypoxic-anoxic range of dissolved oxygen (DO) on metal release/bioavailability at sediment-water interface (SWI) in the Ganga River. Here, we consider eight sites in the main river stem along 518 km; sixty sites downstream two point sources and two tributary confluences covering 630 km; and an incubation experiment to verify these results. We found higher concentrations of metals and bioavailable fractions at SWI at two locations of main stem and up to 700 m, 1000 m, 400 m and 500 m downstream Assi drain, Wazidpur drain, Ramganga confluence and Varuna confluence respectively where DO at SWI (DOsw) was <2.0 mgL-1. The incubation experiment did show higher levels of metal- and P-release and bioavailability under anoxic-hypoxic range of DO. The risk assessment code and eutrophication index indicated high to very high risks of contaminated river sediment and water to aquatic environment at sites with hypoxic-anoxic range of DOsw. Further, the principal component analyses separated metals and bioavailable fractions opposite to FDAase indicating greater risk at these locations. The study, which forms the first report on benthic hypoxia/anoxia-driven metal release, potential bioavailability and risk to the Ganga River ecosystem will help understanding how human-driven perturbations influence geochemical cycling of metals and ecosystem responses in large rivers.
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Affiliation(s)
- Deepa Jaiswal
- Ganga River Ecology Research Laboratory, Environmental Science Division, Centre of Advanced Study in Botany, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
| | - Jitendra Pandey
- Ganga River Ecology Research Laboratory, Environmental Science Division, Centre of Advanced Study in Botany, Institute of Science, Banaras Hindu University, Varanasi, 221005, India.
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74
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Emenike PC, Tenebe I, Ogarekpe N, Omole D, Nnaji C. Probabilistic risk assessment and spatial distribution of potentially toxic elements in groundwater sources in Southwestern Nigeria. Sci Rep 2019; 9:15920. [PMID: 31685938 PMCID: PMC6828721 DOI: 10.1038/s41598-019-52325-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 10/16/2019] [Indexed: 12/24/2022] Open
Abstract
The study investigated the concentration of potentially toxic heavy metals (PTHM) in groundwater sources (hand-dug wells and boreholes), spatial distribution, source apportionment, and health risk impact on local inhabitants in Ogun state. One hundred and eight water samples from 36 locations were analysed for Cr, Ni, Pb, Fe, Mn, Mg, Ca and Al. Mean values of 0.013, 0.003, 0.010, 0.088, 0.004 and 3.906 mg/L were obtained for Pb, Cr, Ni, Fe, Mn, and Al respectively at Iju district. Meanwhile, the average values of Pb, Ni, Fe, Mn, and Al concentrations at Atan district were 0.008, 0.0023, 0.011, 0.003, and 1.319 mg/L respectively. Results also revealed that the 44.4% and 11.13% of the borehole and well-water samples surpassed the World Health Organization limits for Pb at Atan. In Iju, the concentration of Pb and Al were relatively high, exceeding the stipulated standard in 100% of the samples. The Multivariate statistical analysis employed produced principal factors that accounted for 78.674% and 86.753% of the variance at Atan and Iju region respectively. Based on this, PTHM were traced to geogenic sources (weathering, dissolution, leaching) and anthropogenic emissions from industrial activities. In addition, the hazard quotient values obtained from the health risk assessment identified potential non-carcinogenic risk due to Pb via ingestion route. Ni was found to have high carcinogenic risk on adult and children, having exceeded the threshold limit. The outcome of the carcinogenic risk assessment revealed that 88.67% (for adults) and 1.12% (for children) of the cancer risk values surpassed the specified limits at Iju, whereas the cancer risk values were considerably lesser at Atan. In conclusion, the report of this study should serve as a beacon that will spark up strategic planning, comprehensive water resource management, and extensive treatment schemes in order to address the health complications linked with environmental pollution.
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Affiliation(s)
| | - Imokhai Tenebe
- Ingram School of Engineering, Ingram School of Engineering, Texas State University, San Marcos, Texas, USA
| | - Nkpa Ogarekpe
- Department of Civil Engineering, Cross River University of Technology, Calabar, Nigeria
| | - David Omole
- Department of Civil Engineering, Covenant University, Ota, Ogun State, Nigeria
| | - Chidozie Nnaji
- Department of Civil Engineering, University of Nigeria, Nsukka, Enugu State, Nigeria.,Faculty of Engineering and Built Environment University of Johannesburg, Johannesburg, South Africa
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75
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Zhuo H, Fu S, Liu H, Song H, Ren L. Soil heavy metal contamination and health risk assessment associated with development zones in Shandong, China. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:30016-30028. [PMID: 31414392 DOI: 10.1007/s11356-019-05979-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Accepted: 07/12/2019] [Indexed: 06/10/2023]
Abstract
Heavy metal pollution in soils of development zones has attracted wide attention. In this study, soil heavy metal pollution levels and health risks in 15 selected development zones in Shandong Province were investigated for the first time. Geo-accumulation and potential ecological risk indexes were used to assess pollution levels, and health risk was assessed using the US Environmental Protection Agency model. The soil was contaminated by various heavy metals, among which Hg was dominant. A total of 19% of the monitoring sites showed moderate ecological risk level, and low risk level was observed in general. Pollution control of Hg and Cd in each development zone must be strengthened. Health risk analysis showed that noncarcinogenic and carcinogenic risk levels for adults and children were acceptable or nearly acceptable. Positive matrix factorization model was used to identify three possible sources of heavy metal pollution, namely, industrial sources, atmospheric deposition, and transportation. Some specific measures should be taken to prioritize the control of Hg, As, and Cr for protecting the soil environment and human health, especially vulnerable groups, such as children.
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Affiliation(s)
- Huimin Zhuo
- School of Environmental Science and Engineering, Shandong University, 72# Binhai Road, Jimo, 266235, Shandong Province, People's Republic of China
| | - Sanze Fu
- School of Environmental Science and Engineering, Shandong University, 72# Binhai Road, Jimo, 266235, Shandong Province, People's Republic of China
| | - Heng Liu
- School of Environmental Science and Engineering, Shandong University, 72# Binhai Road, Jimo, 266235, Shandong Province, People's Republic of China
| | - Hui Song
- School of Environmental Science and Engineering, Shandong University, 72# Binhai Road, Jimo, 266235, Shandong Province, People's Republic of China
| | - Lijun Ren
- School of Environmental Science and Engineering, Shandong University, 72# Binhai Road, Jimo, 266235, Shandong Province, People's Republic of China.
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76
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Zhai Y, Zheng F, Zhao X, Xia X, Teng Y. Identification of hydrochemical genesis and screening of typical groundwater pollutants impacting human health: A case study in Northeast China. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 252:1202-1215. [PMID: 31252118 DOI: 10.1016/j.envpol.2019.05.158] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Revised: 05/31/2019] [Accepted: 05/31/2019] [Indexed: 06/09/2023]
Abstract
Concentrations of common pollutants in groundwater continue to increase, and emerging pollutants are also increasingly found worldwide, thereby increasingly impacting human activities. In this new situation, it is necessary, albeit more difficult, to once again recognize the hydrochemical genesis of groundwater and to subsequently screen the typical pollutants. Taking the groundwater of the Songnen Plain of Northeast China as an example, the hydrochemical genesis was identified using space interpolation, characteristic element ratio and factor analysis methods based on 368 groundwater samples. Subsequently, the typical pollutants with potential impacts on the health of the local residents were screened by the index system method newly established. All the measured hydrochemical compositions show an obvious spatial variation, with a uniform hydrochemical type of HCO3-Ca in the whole area. Both the major compositions (K, Na, Ca, Mg, HCO3, Cl and SO4) and trace compositions (Fe, Mn, Cu, Zn, Pb, As, F, I and Se) are mainly protogenetic in an environment impacted by the lixiviation of groundwater in the migration process in the strata, although these compositions have been impacted by human activities to varying degrees. The mass concentration of NO3-N has exceeded most of the major compositions except for HCO3 and Ca, which means the nitrogen pollution problem is already very serious; and this problem is mainly caused by the utilization of fertilizers and the discharge of industrial wastewater and domestic sewage. Human activities have obviously disrupted the natural dynamic balance of these chemicals between the environment and the groundwater, thereby intensifying the release of F, Fe and Mn from the environment. TDS, total hardness, tri-nitrogen, F, Fe, Mn, Pb and As in some parts are found to exceed the standards of groundwater quality to varying degrees. As, Pb, Fe, NO3-N, NO2-N, Mn, F and NH4-N are finally screened as the typical pollutants.
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Affiliation(s)
- Yuanzheng Zhai
- College of Water Sciences, Beijing Normal University, Beijing, 100875, China; Beijing Key Laboratory of Urban Hydrological Cycle and Sponge City Technology, Beijing, 100875, China
| | - Fuxin Zheng
- College of Water Sciences, Beijing Normal University, Beijing, 100875, China; Beijing Key Laboratory of Urban Hydrological Cycle and Sponge City Technology, Beijing, 100875, China.
| | - Xiaobing Zhao
- College of Water Sciences, Beijing Normal University, Beijing, 100875, China; Beijing Key Laboratory of Urban Hydrological Cycle and Sponge City Technology, Beijing, 100875, China
| | - Xuelian Xia
- College of Water Sciences, Beijing Normal University, Beijing, 100875, China; Beijing Key Laboratory of Urban Hydrological Cycle and Sponge City Technology, Beijing, 100875, China
| | - Yanguo Teng
- College of Water Sciences, Beijing Normal University, Beijing, 100875, China; Beijing Key Laboratory of Urban Hydrological Cycle and Sponge City Technology, Beijing, 100875, China
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77
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Herath IK, Wu SJ, Ma MH, Jianli W, Chandrajith R. Tracing controlling factors of riverine chemistry in a headwater tributary of the Yangtze River, China, inferred from geochemical and stable isotopic signatures. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:23899-23922. [PMID: 31222648 DOI: 10.1007/s11356-019-05598-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 05/10/2019] [Accepted: 05/27/2019] [Indexed: 06/09/2023]
Abstract
The Jialing River is the second largest headwater tributary of the Yangtze River in China, therefore, the river water has been contaminated and water quality is deteriorated. Hence, this study aims to find the main controling factors of riverine chemistry. 52 water samples were collected for the determination of major ions and environmental isotopes of δ18O and δ2H. Stoichiometry of geochemical data with mixing end members and multivariate statistical analysis were employed with integrated GIS approach for data interpretations. The δ18O and δ2H of the Jialing River Basin (JRB) were used to define the origin of river water from meteoric water and water in the spring season is affected by high evaporation and evaporates dissolution. The average TDS 301 mg/L that is higher than the Yangtze River. In the JRB, 80% of the anion in water samples represented HCO3- (207 mg/L) and SO42- (80 mg/L) while 80% of the cations were accounted by Ca2+ (59.8 mg/L) and Mg2+ (17.9 mg/L). The water chemistry mainly derived from the water rock interaction. Piper plot indicated that Ca-Mg-HCO3- was the most dominant water type and most ions derived from carbonate weathering by H2SO4 and H2CO3. The stoichiometry results further confirmed carbonate weathering is dominant than silicate weathering. Evaporate ions were modified by anthropogenic sources. Agricultural inputs are higher than the industry and atmospheric inputs. Redundancy analysis showed that most contributive land-use type in explaining riverine chemistry was the cultivate land (62.6, 66.4, and 67.9%) at all buffer scales of 30, 20, and 10 km, respectively. Forest and grasslands mostly correlate with Ca2+, Mg2+, Cl-, SO42-, EC, pH, and HCO3- while anthropogenic land-use types such as cultivated and construction lands correlate with Na+, K+, Cl-, and NO3-. These results revealed that the lithology of the basin mainly controlled the upstream water chemistry while downstream riverine chemistry was controlled by both lithology and anthropogenic inputs. Nevertheless, this study suggested that explicitly determining the controlling factors of riverine chemistry involves a complex process and combination of different chemical constituents and factors on river water. However, this study managed to provide useful information to further understanding of the geochemical process in JRB.
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Affiliation(s)
- Imali Kaushalya Herath
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, China.
- University of Science and Technology, Hefei, China.
- Schools of Geographical Sciences, Southwest University, Chongqing, China.
| | - Sheng Jun Wu
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, China.
| | - Mao Hua Ma
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, China
| | - Wang Jianli
- Schools of Geographical Sciences, Southwest University, Chongqing, China
| | - Rohana Chandrajith
- Department of Geology, Faculty of Science, University of Peradeniya, Peradeniya, Sri Lanka
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78
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Bhatti SG, Tabinda AB, Yasin F, Mehmood A, Salman M, Yasar A, Rasheed R, Wajahat R. Ecological risk assessment of metals in sediments and selective plants of Uchalli Wetland Complex (UWC)-a Ramsar site. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:19136-19152. [PMID: 30972684 DOI: 10.1007/s11356-019-04711-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Accepted: 02/25/2019] [Indexed: 06/09/2023]
Abstract
Wetlands act as kidneys of land and facilitate remediation of metals and other harmful pollutants through uptake by aquatic macrophytes. The aim of the present study was to investigate metal concentrations in sediments and plants, sources of metal origin, and contamination level in Uchalli Wetland Complex. Sediment samples were collected from 15 randomly selected sites. Metal concentrations (Cd, Pb, Ni, Cu, Zn, Cr, As, Mn) in sediments and macrophytes were determined during summer and winter seasons using the inductively coupled plasma technique. Metal concentrations in sediments during summer and winter seasons were in the order as follows: As > Mn > Zn > Cr > Ni > Cd > Pb > Cu and As > Mn > Zn > Cr > Ni > Pb > Cd >Cu respectively. All analyzed metals were within European Union (EU) limits. In macrophytes, these metals were in the order as follows: Mn > As > Ni > Zn > Cr > Cd > Cu > Pb and As > Mn > Zn > Ni > Cr > Cd > Pb during summer and winter seasons respectively. Contamination degree (Cd) (1.023-5.309) for these lakes showed low contamination during both seasons; mCd values (below 1.5) showed very little contamination degree, while the pollution load index (0.012 to 0.0386) indicated no metal pollution in these lakes. PCA applied on sediment showed that Pb, Zn, Cr, Cu, and Cd had anthropogenic sources of origin. As and Mn were due to natural processes while Ni could be resultant of both anthropogenic and natural sources. PCA on macrophytes showed that Ni, Pb, Cr, Zn, Cu; Cd, As; Mn had anthropogenic, natural, and anthropogenic + natural sources of origin. The study concluded that metal concentrations in sediments were not up to dangerous level.
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Affiliation(s)
- Sumera Gull Bhatti
- Sustainable Development Study Centre, Government College University, Lahore, Pakistan.
| | - Amtul Bari Tabinda
- Sustainable Development Study Centre, Government College University, Lahore, Pakistan
| | - Faisal Yasin
- Department of Mathematics and Statistics, The University of Lahore, Lahore, Pakistan
| | - Adeel Mehmood
- Government College Women University, Sialkot, Pakistan
| | - Muhammad Salman
- Institute of Chemistry, University of the Punjab, Lahore, Pakistan
| | - Abdullah Yasar
- Sustainable Development Study Centre, Government College University, Lahore, Pakistan
| | - Rizwan Rasheed
- Sustainable Development Study Centre, Government College University, Lahore, Pakistan
| | - Rabia Wajahat
- Sustainable Development Study Centre, Government College University, Lahore, Pakistan
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79
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Soliman NF, Younis AM, Elkady EM. An insight into fractionation, toxicity, mobility and source apportionment of metals in sediments from El Temsah Lake, Suez Canal. CHEMOSPHERE 2019; 222:165-174. [PMID: 30708150 DOI: 10.1016/j.chemosphere.2019.01.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 12/21/2018] [Accepted: 01/02/2019] [Indexed: 06/09/2023]
Abstract
El Temsah Lake is one of the most important wetlands in the Suez Canal area and the major source of fish for the area. In this study, the relative role of sediments' geochemical properties and metals geochemical fractionation in determining Cd, Cr, Fe, Mn, Ni, and Pb mobility and toxicity was especially concerned. The results reflected that the increasing order of contamination for the investigated metals according to individual contamination factor (ICF) was: Cr > Mn > Ni > Pb > Cd > Fe. Risk assessment code (RAC) classification showed that the relative amounts of easily dissolved phases of metals in the sediments followed the order of Ni > Cr > Cd > Pb > Fe > Mn. The toxicity as indicated by toxic unit (TU) due to an individual metal followed a descending order of Ni > Cr > Pb > Cd, indicating that Ni and Cr accounted for the majority of the overall sediment toxicity while, Cd contributed the least to the ΣTU. This work constitutes a good basis for further studies about metal fractionation in El Temsah Lake which might help policy makers to take effective decisions for proper management of the lake.
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Affiliation(s)
- Naglaa F Soliman
- Department of Environmental Studies, Institute of Graduate Studies and Research, Alexandria University, Egypt; Technology Management Department, Egypt-Japan University of Science and Technology (E-JUST), Alexandria, Egypt.
| | - Alaa M Younis
- Department of Aquatic Environment, Faculty of Fish Resources, Suez University, Suez, Egypt.
| | - Eman M Elkady
- National Institute of Oceanography & Fisheries, Suez, Egypt.
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80
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Paches M, Martínez-Guijarro R, Aguado D, Ferrer J. Assessment of the impact of heavy metals in sediments along the Spanish Mediterranean coastline: pollution indices. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:10887-10901. [PMID: 30783930 DOI: 10.1007/s11356-019-04485-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Accepted: 02/05/2019] [Indexed: 06/09/2023]
Abstract
A comprehensive study was carried out to evaluate the occurrence, significance of concentrations and spatial distribution of heavy metals (Cr, Cd, Ni, Cu, Pb, Hg, Zn and As) in sediments along the Valencia coastline (Spain). The sampling campaign covered 476 km of the coastline in a 4-year period. The highest concentrations of metals in the sediments were mainly Cr, Ni, Zn and Cd (up to 28.93 mg Cr kg-1 dw, 15.80 mg Ni kg-1 dw, 57.13 mg Zn kg-1 dw and 0.293 mg Cd kg-1 dw), obtained in the northern areas, some central areas and in an isolated area on the southern coastline. The Sediment Quality Guidelines applied reveal that for all metals studied, none of them reached, or exceed, the "effects of median range" or the "probable effect level". The pollution index reveals that 75% of the stretch coastline has a low priority risk level and the rest "medium-low priority risk level". And, lastly, Potential Ecological Risk Index shows that all but one zone have low ecological risk.
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Affiliation(s)
- Maria Paches
- CALAGUA-Unidad Mixta UV-UPV, Institut Universitari d'Investigació d'Enginyeria de l'Aigua i Medi Ambient-IIAMA, Universitat Politècnica de València, Camí de Vera s/n, 46022, Valencia, Spain
| | - Remedios Martínez-Guijarro
- GEIA-Institut Universitari d'Investigació d'Enginyeria de l'Aigua i Medi Ambient-IIAMA, Universitat Politècnica de València, Camí de Vera s/n, 46022, Valencia, Spain.
| | - Daniel Aguado
- CALAGUA-Unidad Mixta UV-UPV, Institut Universitari d'Investigació d'Enginyeria de l'Aigua i Medi Ambient-IIAMA, Universitat Politècnica de València, Camí de Vera s/n, 46022, Valencia, Spain
| | - Jose Ferrer
- CALAGUA-Unidad Mixta UV-UPV, Institut Universitari d'Investigació d'Enginyeria de l'Aigua i Medi Ambient-IIAMA, Universitat Politècnica de València, Camí de Vera s/n, 46022, Valencia, Spain
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81
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Recent Progress in Metal-Microbe Interactions: Prospects in Bioremediation. JOURNAL OF PURE AND APPLIED MICROBIOLOGY 2019. [DOI: 10.22207/jpam.13.1.02] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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82
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Kang M, Tian Y, Peng S, Wang M. Effect of dissolved oxygen and nutrient levels on heavy metal contents and fractions in river surface sediments. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 648:861-870. [PMID: 30142604 DOI: 10.1016/j.scitotenv.2018.08.201] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Revised: 08/13/2018] [Accepted: 08/15/2018] [Indexed: 06/08/2023]
Abstract
In aquatic systems worldwide, heavy metal pollution has been increasing alongside rapidly growing anthropogenic activities, and most heavy metals are stored in sediments. Overlying water conditions may influence whether sediments act as heavy metal sinks or sources. In this study, we investigated the effects of the dissolved oxygen (DO) and nutrient levels of overlying water on the total contents and fractions of Pb, Zn, Ni, Cu, Mo, and Fe in river surface sediments. Sediments and overlying water were collected from a tributary of the Hai River in Tianjin, China, and then incubated for 61 days under laboratory conditions. The chemical speciation of heavy metals was determined following the modified Community Bureau of Reference (BCR) three-step sequential extraction procedure. The results showed that Pb, Zn, and Fe were released from the sediments in an anoxic environment and adsorbed from the overlying water in an aerobic environment. High nutrient levels facilitated the adsorption of Pb, Zn, Cu, and Fe in the sediments, while the total content of Mo was higher under low nutrient level conditions. The DO and nutrient levels appeared to have no influence on the total content of Ni. According to the risk assessment code classification (RAC), anoxic conditions decrease the potential bioavailability risks of Pb, Zn, Ni, Cu, Mo, and Fe. Anoxic conditions can also reduce the percentage of the potentially mobile fractions of Pb, Zn, Cu, and Fe. The low nutrient level contributed, to some extent, to reducing the potential bioavailability risk of Pb, but increasing the risk of Cu. The high nutrient level increased the potentially mobile fractions of Pb, Zn, Cu, and Fe. The information obtained in this study improves our scientific understanding of the effects of overlying water conditions on the total heavy metal contents and fractions.
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Affiliation(s)
- Mengxin Kang
- School of Environmental Science and Engineering, Tianjin University, 135 Yaguan Road, Tianjin 300350, China; College of Architecture Engineering, Northeast Electric Power University, 169 Changchun Road, Jilin 132012, China
| | - Yimei Tian
- School of Environmental Science and Engineering, Tianjin University, 135 Yaguan Road, Tianjin 300350, China.
| | - Sen Peng
- School of Environmental Science and Engineering, Tianjin University, 135 Yaguan Road, Tianjin 300350, China
| | - Mengqi Wang
- School of Environmental Science and Engineering, Tianjin University, 135 Yaguan Road, Tianjin 300350, China
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83
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Abbas Z, Arooj F, Ali S, Zaheer IE, Rizwan M, Riaz MA. Phytoremediation of landfill leachate waste contaminants through floating bed technique using water hyacinth and water lettuce. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2019; 21:1356-1367. [PMID: 31364389 DOI: 10.1080/15226514.2019.1633259] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
In the present study, the effectiveness of water hyacinth and water lettuce was tested for the phytoremediation of landfill leachate for the period of 15 days. Fifteen plastic containers were used in experimental setup where aquatic plants were fitted as a floating bed with the help of thermo-pole sheet. It was observed that both plants significantly (p < 0.05/p < 0.01/p < 0.001) reduce the physicochemical parameters pH, TDS, BOD, COD and heavy metals like Zn, Pb, Fe, Cu and Ni from landfill leachate. Maximum reduction in these parameters was obtained at 50% and 75% landfill leachate treatment and their removal rate gradually increased from day 3 to day 15 of the experiment. The maximum removal rate for heavy metals such as for Zn (80-90%), Fe (83-87%) and Pb (76-84%) was attained by Eichhornia crassipes and Pistia stratiotes. Value of bioconcentration and translocation factor was less than 1 which indicates the low transport of heavy metals from roots to the above-ground parts of the plants. Both these plants accumulate heavy metals inside their body without showing much reduction in growth and showing tolerance to all the present metals. Therefore, results obtained from the study suggest that these aquatic plants are suitable candidate for the removal of pollution load from landfill leachate.
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Affiliation(s)
- Zohaib Abbas
- Department of Environmental Sciences, Faculty of Biosciences, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Fariha Arooj
- Department of Environmental Sciences, Faculty of Biosciences, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Shafaqat Ali
- Department of Environmental Sciences and Engineering, Government College University, Faisalabad, Pakistan
| | - Ihsan Elahi Zaheer
- Department of Environmental Sciences and Engineering, Government College University, Faisalabad, Pakistan
| | - Muhammad Rizwan
- Department of Environmental Sciences and Engineering, Government College University, Faisalabad, Pakistan
| | - Muhammad Ahsan Riaz
- Department of Environmental Sciences and Engineering, Government College University, Faisalabad, Pakistan
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84
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Heavy Metals in Bottom Sediments of Reservoirs in the Lowland Area of Western Poland: Concentrations, Distribution, Sources and Ecological Risk. WATER 2018. [DOI: 10.3390/w11010056] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The paper presents the results of a study of heavy metals (HMs) concentrations in six retention reservoirs located in the lowland area of western Poland. The objectives of this study were to analyze the Cd, Cr, Cu, Ni, Pb and Zn concentrations, assess contamination and ecological risk, analyze the spatial variability of HM concentrations and identify potential sources and factors determining the concentration and spatial distribution. The bottom sediment pollution by HMs was assessed on the basis of the index of geo-accumulation (Igeo), enrichment factor (EF), pollution load index (PLI) and metal pollution index (MPI). To assess the ecological risk associated with multiple HMs, the mean probable effect concentration (PEC) quotient (Qm-PEC) and the toxic risk index (TRI) were used. In order to determine the similarities and differences between sampling sites in regard to the HM concentration, cluster analysis (CA) was applied. Principal component analysis (PCA) was performed to assess the impact of grain size, total organic matter (TOM) content and sampling site location on HM spatial distribution. Additionally, PCA was used to assess the impact of catchment, reservoir characteristics and hydrological conditions. The values of Igeo, EF, MPI and PLI show that Cd, Cr, Cu, Ni and Pb mainly originate from geogenic sources. In contrast, Zn concentrations come from point sources related to agriculture. The mean PEC quotient (Qm-PEC) and TRI value show that the greatest ecological risk occurred at the inlet to the reservoir and near the dam. The analysis showed that the HMs concentration depends on silt and sand content. However, the Pb, Cu, Cd and Zn concentrations are associated with TOM as well. The relationship between individual HMs and silt was stronger than with TOM. The PCA results indicate that HMs with the exception of Zn originate from geogenic sources—weathering of rock material. However, the Ni concentration may additionally depend on road traffic. The results show that a reservoir with more frequent water exchange has higher HMs concentrations, whereas the Zn concentration in bottom sediments is associated with agricultural point sources.
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85
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Zhang Z, Lu Y, Li H, Tu Y, Liu B, Yang Z. Assessment of heavy metal contamination, distribution and source identification in the sediments from the Zijiang River, China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 645:235-243. [PMID: 30029107 DOI: 10.1016/j.scitotenv.2018.07.026] [Citation(s) in RCA: 134] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 06/30/2018] [Accepted: 07/02/2018] [Indexed: 05/14/2023]
Abstract
In this study, the contents of 10 heavy metals (Sb, Cd, Cr, Mn, Co, Ni, Cu, Zn, As, and Pb) in 49 sediment samples from the Zijiang River were determined by using inductively coupled plasma-optical emission spectrometry. Contamination indexes including geoaccumulation index, modified degree of contamination, sediment quality guidelines, potential ecological risk index, together with potential ecological risk factor were used to assess heavy metal contamination in the sediments of the Zijiang River. Pearson's correlation analysis and principal component analysis were used to identify the sources of heavy metals. The results indicated that the mean values of heavy metals in the Zijiang River's sediments were found to be significantly higher than the corresponding background values. But when comparing with that in other rivers in the world, they were at medium levels except for Sb. Furthermore, a comparison of the heavy metal concentrations and the consensus-based sediment quality guidelines showed that the heavy metal pollutions (Cd, Cr, Ni, Cu, Zn, As, and Pb) tended to occasionally pose harmful impacts on the ecosystem. The values of contamination indexes revealed that serious heavy metal contamination and relatively high potential ecological risks were mainly existed in the downstream of antimony mining and smelting factories (S23-S49). In addition, high potential ecological risks of Sb were observed in sampling sites that were close to those factories (S23, S24, S25, and S27), and high potential ecological risks of Cd were observed in the downstream (S37-S49). Basing on the Pearson's correlation analysis and principal component analysis, three main sources were identified. Co, Zn, Cd, and Cu contaminants were mainly derived from agricultural activities; As, Sb, Mn, and Pb mainly came from mining and smelting activities; Cr and Ni were mainly from natural sources.
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Affiliation(s)
- Zhaoxue Zhang
- Center for Environment and Water Resources, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, PR China
| | - Yi Lu
- Center for Environment and Water Resources, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, PR China
| | - Haipu Li
- Center for Environment and Water Resources, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, PR China; Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese Resources, Central South University, Changsha 410083, PR China.
| | - Yi Tu
- Center for Environment and Water Resources, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, PR China
| | - Boyu Liu
- Center for Environment and Water Resources, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, PR China
| | - Zhaoguang Yang
- Center for Environment and Water Resources, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, PR China; Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese Resources, Central South University, Changsha 410083, PR China.
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86
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Zhu J, Li Y, Xu L, Liu Z. Removal of toluene from waste gas by adsorption-desorption process using corncob-based activated carbons as adsorbents. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 165:115-125. [PMID: 30195203 DOI: 10.1016/j.ecoenv.2018.08.105] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 08/15/2018] [Accepted: 08/30/2018] [Indexed: 06/08/2023]
Abstract
The aim of this study is to obtain activated carbons from corncob wastes by ZnCl2 activation for toluene removal. Thermogravimetric analysis (TG), N2 adsorption-desorption, scanning electron microscope (SEM), energy dispersive X ray spectroscopy (EDS), Fourier-transform infrared spectroscopy (FT-IR) and Boehm's titration were used to test the characteristics of raw materials and carbon samples. The influences of preparation conditions such as carbonization temperature, impregnation ratio and carbonization time on the textural and chemical characteristics of carbons were investigated. Besides, the effects of porosity and surface functional group on the adsorption capacity were also studied. The best adsorption capacity of 414.6 ± 13.0 mg g-1 at 3000 mg m-3 was obtained when the condition was as follows: 1:1 impregnation ratio, 550 °C carbonization temperature and 1.0 h carbonization time. The Langmuir, Freundlich, Sips, Toth and Redlich-Peterson models were used to depict the adsorption mechanism of toluene on this sample. The recovery of toluene through vacuum swing adsorption (VSA)-temperature swing adsorption (TSA) process was also studied.
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Affiliation(s)
- Jiang Zhu
- Key Lab for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, No. 135, Yaguan Road, Jinnan District, Tianjin 300072, China; National Engineering Research Center for Distillation Technology, Tianjin 300072, China; Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China
| | - Yonghong Li
- Key Lab for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, No. 135, Yaguan Road, Jinnan District, Tianjin 300072, China; National Engineering Research Center for Distillation Technology, Tianjin 300072, China; Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China.
| | - Lei Xu
- Key Lab for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, No. 135, Yaguan Road, Jinnan District, Tianjin 300072, China; National Engineering Research Center for Distillation Technology, Tianjin 300072, China; Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China
| | - Zhiyuan Liu
- Key Lab for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, No. 135, Yaguan Road, Jinnan District, Tianjin 300072, China; National Engineering Research Center for Distillation Technology, Tianjin 300072, China; Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China
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87
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Tadesse AW, Gereslassie T, Xu Q, Tang X, Wang J. Concentrations, Distribution, Sources and Ecological Risk Assessment of Trace Elements in Soils from Wuhan, Central China. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:ijerph15122873. [PMID: 30558229 PMCID: PMC6313746 DOI: 10.3390/ijerph15122873] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 12/07/2018] [Accepted: 12/11/2018] [Indexed: 11/16/2022]
Abstract
This study aimed to determine the concentration levels, potential sources and ecological risks of eleven trace elements, namely Cr, Fe, Co, Ni, Cu, As, Sb, Cd, Zn, Hg and Pb, in the soil from Huangpi district, Wuhan, Central China. Soil samples were collected from eighteen sites at soil depths of 1–10 and 10–20 cm and analyzed using Inductively Coupled Plasma-Mass Spectrometer ICP-MS (Thermo X SERIES 2, Scientific and Innovative Technology Co. Ltd., Beijing, China). The recorded mean concentration of the elements were in a decreasing order of Fe > Co > Cr > Ni > Pb > Cu > As > Cd > Sb > Zn > Hg. The mean concentration of trace elements, soil pH and total organic carbon (TOC) were higher at a soil depth of 1–10 cm. The obtained mean concentration of Cr, Co, As, Cd, Ni, Cu, Hg and Pb were above the soil background values of Wuhan and Hubei Province. The mean concentration values of Co, Ni and Cd, exceeded the recommended FAO (Food and Agriculture Organization)/ISRIC (International Soil Reference and Information Centre) (2004) and WHO/FAO (2001) values. Pearson’s correlation analysis illustrated that there was a strong and significant correlation between trace elements, whereas, a weak positive and negative correlation between elements and soil properties (pH and TOC). The principal component analysis (PCA) and cluster analysis (CA) result indicated that the concentration of trace elements in Huangpi soil were originated from anthropogenic sources. Potential ecological risk index (RI) of this study revealed that there is a high ecological risk of trace elements in the soil. Enrichment factor (EF) and geo-accumulation index (Igeo) of trace elements for this study indicated that the study area is strongly contaminated with Cd and Co. Generally, the finding of this research showed that Huangpi soil is contaminated.
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Affiliation(s)
- Ababo Workineh Tadesse
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China.
- Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan 430074, China.
- Wuhan Botanical Garden, University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Tekleweini Gereslassie
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China.
- Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan 430074, China.
- Wuhan Botanical Garden, University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Qiang Xu
- Department of management engineering, Shangrao Vocational and Technical College, Shangrao 334109, China.
| | - Xiaojun Tang
- Wuhan Britain-China School, Wuhan Foreign Languages School, Wuhan, 430022 China.
| | - Jun Wang
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China.
- Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan 430074, China.
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88
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Elias MS, Ibrahim S, Samuding K, Rahman SA, Hashim A. The sources and ecological risk assessment of elemental pollution in sediment of Linggi estuary, Malaysia. MARINE POLLUTION BULLETIN 2018; 137:646-655. [PMID: 30503479 DOI: 10.1016/j.marpolbul.2018.11.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 10/23/2018] [Accepted: 11/06/2018] [Indexed: 06/09/2023]
Abstract
In this study, concentrations of heavy metals, rare earth elements (REEs), Uranium (U) and Thorium (Th) of the actinide group were determined from Linggi estuary sediment samples by neutron activation analysis (NAA) and inductive coupled plasma - mass spectrometry techniques. The geo-accumulation (Igeo) and ecological risk index (Ri) values were calculated to identify the quality status of Linggi estuary sediments. Results indicated Linggi estuary was polluted by arsenic (As), lead (Pb) and antimony (Sb). REEs, U and Th showed significant increase of concentration in Linggi estuary sediments. Ri of Linggi estuary was categorised as low to considerable ecological risk, which indicates no significant to moderate effect on the majority of the sediment-dwelling organisms. Correlation matrix and principal component analysis assessed pollution sources to be both natural and anthropogenic.
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Affiliation(s)
- Md Suhaimi Elias
- School of Chemistry and Environment, Faculty of Applied Sciences, Universiti Teknologi MARA (UiTM), 40450 Shah Alam, Selangor, Malaysia; Analytical Chemistry Application Group (ACA), Waste and Environmental Technology Division, Malaysian Nuclear Agency, Bangi, 43000 Kajang, Selangor, Malaysia.
| | - Shariff Ibrahim
- School of Chemistry and Environment, Faculty of Applied Sciences, Universiti Teknologi MARA (UiTM), 40450 Shah Alam, Selangor, Malaysia
| | - Kamarudin Samuding
- Environmental Tracer Application Group (E-TAG), Waste and Environmental Technology Division, Malaysian Nuclear Agency, Bangi, 43000 Kajang, Selangor, Malaysia
| | - Shamsiah Ab Rahman
- Analytical Chemistry Application Group (ACA), Waste and Environmental Technology Division, Malaysian Nuclear Agency, Bangi, 43000 Kajang, Selangor, Malaysia
| | - Azian Hashim
- Analytical Chemistry Application Group (ACA), Waste and Environmental Technology Division, Malaysian Nuclear Agency, Bangi, 43000 Kajang, Selangor, Malaysia
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89
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Cao Y, Lei K, Zhang X, Xu L, Lin C, Yang Y. Contamination and ecological risks of toxic metals in the Hai River, China. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 164:210-218. [PMID: 30118954 DOI: 10.1016/j.ecoenv.2018.08.009] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 07/30/2018] [Accepted: 08/01/2018] [Indexed: 06/08/2023]
Abstract
Contamination of trace metals in urban rivers is a global problem. The objective of this study was to investigate the contamination and ecological risks of trace metals in the Hai River, which receives substantial effluents from the Beijing-Tianjin region. A total of 43 surface water and sediment samples were collected and analyzed for physiochemical properties and toxic elements. The concentrations of Cd, Cr, Ni, Pb, Cu and Zn in the river water met the Chinese environmental quality grade I standards for surface water. The average total concentrations of Zn, Cr, V, Cu, Pb, Ni, Co, Sc and Cd in the sediments were 144.2, 77.5, 70.1, 46.1, 40.1, 29.6, 12.4, 9.9 and 0.26 mg/kg, respectively. The enrichment of Cd, Cr, Cu, Pb and Zn in the sediments was influenced by anthropogenic activity, as indicated by the enrichment factor (EF) and multivariate analysis. The concentrations of Co and Cr in the sediments were predominantly in residual fractions, while relatively higher amounts of Cd, Pb, Zn and Cu were in non-residual fractions. There was a significant correlation between concentrations of Cd, Co, Cr, Cu, Pb and Zn in non-residual fractions and their corresponding EF values (P < 0.01). This result further demonstrated that anthropogenic inputs were an important contributor to metal enrichment. The high bioavailability of Cd and poor bioavailability of Co and Cr in the sediments were demonstrated by the single extraction procedure. The significant correlation between concentrations of Cd, Cu, Pb and Zn in non-residual fractions and their concentrations in EDTA-extractable fractions was established (P < 0.01). This result indicates that single-step EDTA extraction may represent a useful procedure for assessing the bioavailability of Cd, Cu, Pb and Zn in riverine sediments. The ecological risks of the metals studied in the Hai River sediments were at a low level, dominated by the risks imposed by Cd.
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Affiliation(s)
- Yuanxin Cao
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Kai Lei
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Xuan Zhang
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Ling Xu
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Chunye Lin
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China.
| | - Yining Yang
- Class 2, Grade 11, No. 171 High School of Beijing, Beijing 100013, China
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90
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Pan L, Fang G, Wang Y, Wang L, Su B, Li D, Xiang B. Potentially Toxic Element Pollution Levels and Risk Assessment of Soils and Sediments in the Upstream River, Miyun Reservoir, China. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:ijerph15112364. [PMID: 30366451 PMCID: PMC6267611 DOI: 10.3390/ijerph15112364] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 10/15/2018] [Accepted: 10/16/2018] [Indexed: 01/11/2023]
Abstract
This study focused on the Chao River and Baimaguan River located upstream of the Miyun Reservoir in Miyun District (Beijing, China). Soil and sediment samples were collected from the river and drainage basin. Total nitrogen, total phosphorus, and six potentially toxic elements including cadmium, zinc, lead, chromium, arsenic, and copper, were analyzed in terms of concentration, potential ecological risk, and human health risk. The average concentrations of the six potentially toxic elements were all below the soil environmental quality standards for China. Cadmium was the most serious pollutant in both soils and sediments, at 2.58 and 3.40 times its background values. The contents of Cd and Pb were very closely related (p < 0.01) to total nitrogen concentrations in both soil and sediment samples. The potential ecological risks posed by Cd in the Chao and Baimaguan River soils were considerable and moderate, respectively. The historical iron ore mining and agricultural activity were identified as the primary sources of potentially toxic element pollution of soil and sediment in the Chao-Bai River in Miyun District. Human health risk assessment indicated that non-carcinogenic risks all fell below threshold values. The total carcinogenic risks due to Cr and As were within the acceptable range for both adults and children. This conclusion provides a scientific basis for the control of potentially toxic element pollution and environmental protection of the Miyun Reservoir in Beijing.
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Affiliation(s)
- Libo Pan
- Chinese Research Academy of Environmental Sciences, Agricultural Environmental Research Center, Beijing 100012, China.
- Chinese Research Academy of Environmental Sciences, State Key Laboratory of Environmental Criteria and Risk Assessment, Beijing 100012, China.
| | - Guangling Fang
- Chinese Research Academy of Environmental Sciences, Agricultural Environmental Research Center, Beijing 100012, China.
- Chinese Research Academy of Environmental Sciences, State Key Laboratory of Environmental Criteria and Risk Assessment, Beijing 100012, China.
| | - Yue Wang
- Chinese Research Academy of Environmental Sciences, Agricultural Environmental Research Center, Beijing 100012, China.
- Chinese Research Academy of Environmental Sciences, State Key Laboratory of Environmental Criteria and Risk Assessment, Beijing 100012, China.
| | - Lei Wang
- Chinese Research Academy of Environmental Sciences, Agricultural Environmental Research Center, Beijing 100012, China.
- Chinese Research Academy of Environmental Sciences, State Key Laboratory of Environmental Criteria and Risk Assessment, Beijing 100012, China.
| | - Benying Su
- Chinese Research Academy of Environmental Sciences, Agricultural Environmental Research Center, Beijing 100012, China.
- Chinese Research Academy of Environmental Sciences, State Key Laboratory of Environmental Criteria and Risk Assessment, Beijing 100012, China.
| | - Dan Li
- Chinese Research Academy of Environmental Sciences, State Key Laboratory of Environmental Criteria and Risk Assessment, Beijing 100012, China.
| | - Bao Xiang
- Chinese Research Academy of Environmental Sciences, Agricultural Environmental Research Center, Beijing 100012, China.
- Chinese Research Academy of Environmental Sciences, State Key Laboratory of Environmental Criteria and Risk Assessment, Beijing 100012, China.
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91
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Wang W, Li J, Li Z, Pan J, Zhang Y. Eliminating redundant spatial variation to better understand the variance of interest of soil potentially toxic elements at different sampling scales in different soil types south of Nanjing, China. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:29038-29053. [PMID: 30109690 DOI: 10.1007/s11356-018-2872-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Accepted: 07/30/2018] [Indexed: 06/08/2023]
Abstract
Sampling scale and prediction of spatial distribution are essential in surveys of soil metal pollution. Sufficient sampling density encompassing the principal spatial sources of variance and prediction of polluted areas with the help of soil maps makes pollution evaluation more reliable and subsequent soil remediation assessment more efficient. Two soil sampling schemes, using 232 points at 2-km intervals in 2002 for sampling at county scale and 109 points at 200-1000-m intervals in 2012 at town scale, were used to study the potentially toxic metals Cu, Cd, Cr, Hg, Ni, Pb, Zn, and the metalloid As in an urban-rural hinge area. We focused on finding characteristics of the explanatory power of soil type toward different sampling scales from 200 to 2000 m, a routine sampling scale in practice for remediation of soil potentially toxic elements (PTEs). We also attempted to eliminate the redundant spatial variation to better understand the variance of soil PTEs. Spatial variation of PTEs at different scales was compared and estimated using soil map units based on geostatistical methods. The explanatory power of the soil map units selected at different scales was significantly different at P < 0.01 and the smaller scales better explained the spatial variance. Anthropic activities profoundly affected the contents of PTEs in soils and the amounts of anthropogenic pollutants released often exceed the contribution from natural sources. Variances of interest of Cr and Cu were underestimated by 72.4 and 32.8%, respectively, due to soil type as a factor but were overestimated for other elements by percentages following the sequence Zn (45.4%) > Hg (28.6%) > Pb (28.8%) > Ni (26.73%) > As (13.7%) > Cd (10.5%). Eliminating variances of zero interest would be helpful in increasing the effectiveness of remediation of metal-contaminated soils.
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Affiliation(s)
- Wenyong Wang
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Jiajia Li
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Zhaofu Li
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Jianjun Pan
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China.
| | - Yabing Zhang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China
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92
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Ouyang W, Wang Y, Lin C, He M, Hao F, Liu H, Zhu W. Heavy metal loss from agricultural watershed to aquatic system: A scientometrics review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 637-638:208-220. [PMID: 29751304 DOI: 10.1016/j.scitotenv.2018.04.434] [Citation(s) in RCA: 105] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 04/29/2018] [Accepted: 04/29/2018] [Indexed: 06/08/2023]
Abstract
Heavy metal pollution in soil and aquatic environments has attracted widespread attention due to its persistence, accumulation in the food chain and negative effects on ecological and human health. However, analyses of the watershed-scale migration mechanisms of heavy metal loss from agricultural systems to aquatic systems have seldom been studied systematically. Therefore, this review summarizes the available data in the literature (2003-2017) using CiteSpace software to provide insights into the specific characteristics of heavy metal loss from agricultural watersheds to aquatic systems and consequently shows global development trends that scientists can use for establishing future research directions. As opposed to traditional review articles by experts, this study provides a new method for quantitatively visualizing information about the development of this field over the past decade. The results indicate that among all countries, China was the most active contributor with the most publications and cooperated the most with other countries. In addition, most articles were classified as environmental sciences and ecology, environmental sciences or agricultural studies. Furthermore, based on a keyword co-word analysis by CiteSpace, it was concluded that erosion-linked transport of heavy metals was the most influencing factor of mitigation mechanism. Additionally, the migration characteristics of heavy metals in farmland soils and water under the complex environment impacts of various factors such as climate change and land-use changes were of great significance that future studies should focus on.
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Affiliation(s)
- Wei Ouyang
- School of Environment, State Key Laboratory of Water Environment Simulation College of Environment, Beijing Normal University, Beijing 100875, PR China.
| | - Yidi Wang
- School of Environment, State Key Laboratory of Water Environment Simulation College of Environment, Beijing Normal University, Beijing 100875, PR China
| | - Chunye Lin
- School of Environment, State Key Laboratory of Water Environment Simulation College of Environment, Beijing Normal University, Beijing 100875, PR China
| | - Mengchang He
- School of Environment, State Key Laboratory of Water Environment Simulation College of Environment, Beijing Normal University, Beijing 100875, PR China
| | - Fanghua Hao
- College of Water Sciences, Beijing Normal University, Beijing 100875, PR China
| | - Hongbin Liu
- Key Laboratory of Nonpoint Source Pollution Control, Ministry of Agriculture/Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China
| | - Weihong Zhu
- College of Science, Yanbian University, Yanji 133000, Jilin, PR China; Changbai Mountain Key Laboratory of Biological Resources and Functional Molecules, Yanji 133003, Jilin, PR China
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93
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Kumar B, Singh UK. Source apportionment of heavy metals and their ecological risk in a tropical river basin system. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:25443-25457. [PMID: 29951762 DOI: 10.1007/s11356-018-2480-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Accepted: 06/01/2018] [Indexed: 06/08/2023]
Abstract
Surface water and sediment samples were collected from Ajay River basin to appraise the behavior of heavy metals with surrounding environments and their inter-elemental relationships. Parameters like pH and organic carbon are having a minimal role in heavy metal distribution while some elements like Fe and Cu showed great affinity for organic matter based on linear regression analysis (LRA). Ficklin diagram justified that river basin is not contaminated through acidic pollutants. The river basin is highly enriched with Cu, Cd, Pb, and Ni which were much higher than world average values, average shale standard, effect range low (ERL), and threshold effect level (TEL). PCA and LRA verified that Cu, Cd, Pb, and Ni were mainly derived from anthropogenic inputs, and others like Fe, Mn, Zn, and Co came from geogenic sources. Pollution indices revealed that river basin is moderately to highly contaminated by Cu, Cd, and Ni. Furthermore, Ajay River basin is under strong potential ecological risk based on the obtained value of risk index and probable effect level/effect range median quotient index. However, river basin is strongly influenced by lithological properties, diversified hydrogeological settings, mineralization and mobilization of subsurface materials, and urban and industrial effluents which are controlling the heavy metals.
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Affiliation(s)
- Balwant Kumar
- Integrated Science Education and Research Centre (ISERC), Institute of Science, Visva-Bharati, Santiniketan, Birbhum, West Bengal, 731235, India
| | - Umesh Kumar Singh
- Integrated Science Education and Research Centre (ISERC), Institute of Science, Visva-Bharati, Santiniketan, Birbhum, West Bengal, 731235, India.
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94
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Jiang Z, Xu N, Liu B, Zhou L, Wang J, Wang C, Dai B, Xiong W. Metal concentrations and risk assessment in water, sediment and economic fish species with various habitat preferences and trophic guilds from Lake Caizi, Southeast China. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 157:1-8. [PMID: 29605640 DOI: 10.1016/j.ecoenv.2018.03.078] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 03/25/2018] [Accepted: 03/27/2018] [Indexed: 06/08/2023]
Abstract
Despite the potential emissions of heavy metal pollution in Lake Caizi due to extensive agriculture, urban growth and fishing activities, the risk posed by metal concentrations to aquatic environments and human populations has not yet been studied. In this study we compared the concentrations of Hg, As, Pb, Cd, Cr, Cu and Zn in water, sediment, and economic fish species with different habitat preferences and trophic guilds across important fishery areas in Lake Caizi, located on the northern shore of the Yangtze River, Southeast China. The concentrations of Cr in water were found approximately 6 times higher than the safety thresholds established by international legislation. Cr, Zn, As and Cd concentrations in sediments surpassed the background values for Yangtze River basin in Anhui Province. However, all the studied fish species in Lake Caizi had metal concentrations lower than legislation thresholds established by China and international organizations. Heavy metal concentrations were found to be significantly higher in demersal (inhabiting near the sediments) and piscivorous (possessing higher trophic level) fishes than in pelagic/benthopelagic (inhabiting the upper and lower water column) and herbivorous/planktivorous (possessing lower trophic level) fishes. Our finding demonstrated that the metal concentrations in fishes are simultaneously influenced by the habitat and bio-accumulation through the food chain. According to target hazard quotient (THQ) calculations for heavy metal contents in the muscles of fish species, all the determined heavy metals gave THQ values lower than 1, suggesting the inexistence of health risks from the intake of fishes from Lake Caizi.
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Affiliation(s)
- Zhongguan Jiang
- School of Resources and Environmental Engineering, Anhui University, Hefei 230601, PR China
| | - Nan Xu
- Shenzhen Key Laboratory for Heavy Metal Pollution Control and Reutilization, School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen 518055, PR China
| | - Bingxiang Liu
- School of Resources and Environmental Engineering, Anhui University, Hefei 230601, PR China.
| | - Lizhi Zhou
- School of Resources and Environmental Engineering, Anhui University, Hefei 230601, PR China
| | - Juan Wang
- School of Resources and Environmental Engineering, Anhui University, Hefei 230601, PR China
| | - Chao Wang
- School of Resources and Environmental Engineering, Anhui University, Hefei 230601, PR China
| | - Bingguo Dai
- School of Resources and Environmental Engineering, Anhui University, Hefei 230601, PR China
| | - Wen Xiong
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, PR China
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95
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de Carvalho Aguiar VM, Abuchacra PFF, Neto JAB, de Oliveira AS. Environmental assessment concerning trace metals and ecological risks at Guanabara Bay, RJ, Brazil. ENVIRONMENTAL MONITORING AND ASSESSMENT 2018; 190:448. [PMID: 29974326 DOI: 10.1007/s10661-018-6833-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 06/27/2018] [Indexed: 06/08/2023]
Abstract
Three-stage sequential extraction BCR was applied to surface sediments from the west part of Guanabara Bay to assess the mobility of Zn, Cu, Pb, Ni, Cr, and Mn. Results were satisfactory for the analysis of certificate standard material (BCR 701), with recoveries between 71 (Cu) and 123% (Cr). Evaluation of organic matter composition classified the area as eutrophic (CHO:PRT > 1), with aged organic detritus at some stations. Zn exhibited by far the greatest bioavailability, with 43.49% of its concentrations associated with the exchangeable fraction. Cu and Cr showed stronger affinity for organic matter, with 51.18 and 48.73% of their concentrations, respectively, bounded to the oxidizable fraction. Pb presented higher concentrations in the reducible fraction (45.41%). The strongest lithogenic contribution was shown by Ni (31.91%) and Mn (35.44%). PCA clearly showed the determinant role of organic matter and fine sediments in the distribution of metals in the study area and also a common source for these elements, with the exception of Cu. Risk Assessment Code (RAC) established Zn as the most concerning element in the study area. The decreasing mobility order, based on the sum of the three extractable fractions of BCR, was Pb > Cu > Cr > Zn > Ni > Mn. The comparison of the results with sediments quality guidelines (SQG) proved fractionation to be mandatory in the evaluation of effective ecological risk concerning trace elements in sediments.
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Affiliation(s)
- Valquiria Maria de Carvalho Aguiar
- Instituto de Geociências, Departamento de Geologia e Geofísica Marinha, Universidade Federal Fluminense, Avenida General Milton Tavares de Souza, s/n, Niterói, RJ, 24210346, Brazil.
| | - Paula Ferreira Falheiro Abuchacra
- Instituto de Geociências, Departamento de Geografia, Universidade Federal Fluminense, Avenida General Milton Tavares de Souza, s/n, Niterói, RJ, Brazil
| | - José Antônio Baptista Neto
- Instituto de Geociências, Departamento de Geologia e Geofísica Marinha, Universidade Federal Fluminense, Avenida General Milton Tavares de Souza, s/n, Niterói, RJ, 24210346, Brazil
| | - Allan Sandes de Oliveira
- Instituto de Geociências, Departamento de Geologia e Geofísica Marinha, Universidade Federal Fluminense, Avenida General Milton Tavares de Souza, s/n, Niterói, RJ, 24210346, Brazil
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96
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Xu Z, Wu J, Li H, Chen Y, Xu J, Xiong L, Zhang J. Characterizing heavy metals in combined sewer overflows and its influence on microbial diversity. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 625:1272-1282. [PMID: 29996424 DOI: 10.1016/j.scitotenv.2017.12.338] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2017] [Revised: 12/28/2017] [Accepted: 12/29/2017] [Indexed: 06/08/2023]
Abstract
This study characterized the pollution levels and potential ecological risk of heavy metals in combined sewer overflows (CSOs) and their effects on microbial diversity in nearby riparian sediments. The chemical fractionations of Zn, Cd, Cr, and Cu in dry-weather flows, wet-weather flows (CSO discharges), sewer sediments, and surface runoffs were determined. Geo-accumulation (Igeo) and ecological risk (RI) indexes were employed for metal risk assessment. DNA extraction and polymerase chain reaction (PCR) amplification on the Illumina MiSeq platform were conducted. The results show that heavy metals contents in fine-sized fractions have higher values than those in coarse-sized fractions. Chemical fractionation analysis suggests that Zn and Cd are two of the most bioavailable metals impacted by anthropogenic activities. Cr and Cu contents in CSOs are relatively stable and could exist for extended periods. According to the RI analysis, CSOs pose a considerable risk (RI-G2) to receiving waters due to the higher bioavailability of Cd, which was consistent with the Igeo index. Furthermore, under the stress of the highly-bioavailable Cd and Cu, Gram +ves in the riparian benthic sediment gradually became dominant with metal-tolerance property. Therefore, long-term exposure to highly bioavailable metals could exhibit great impacts on microbial diversity.
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Affiliation(s)
- Zuxin Xu
- College of Environmental Science and Engineering, Tongji University, 200092 Shanghai, China
| | - Jun Wu
- College of Environmental Science and Engineering, Tongji University, 200092 Shanghai, China.
| | - Huaizheng Li
- College of Environmental Science and Engineering, Tongji University, 200092 Shanghai, China; Key Laboratory of Yangtze River Water Environment, Ministry of Education, Tongji University, 200092 Shanghai, China; State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, 200092 Shanghai, China.
| | - Yanbo Chen
- College of Environmental Science and Engineering, Tongji University, 200092 Shanghai, China
| | - Jin Xu
- College of Environmental Science and Engineering, Tongji University, 200092 Shanghai, China
| | - Lijun Xiong
- College of Environmental Science and Engineering, Tongji University, 200092 Shanghai, China
| | - Jin Zhang
- Institute of Urban Water Management, Technische Universität Dresden, 01062 Dresden, Germany
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97
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Liu X, Jiang J, Yan Y, Dai Y, Deng B, Ding S, Su S, Sun W, Li Z, Gan Z. Distribution and risk assessment of metals in water, sediments, and wild fish from Jinjiang River in Chengdu, China. CHEMOSPHERE 2018; 196:45-52. [PMID: 29291513 DOI: 10.1016/j.chemosphere.2017.12.135] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Revised: 12/14/2017] [Accepted: 12/22/2017] [Indexed: 06/07/2023]
Abstract
To evaluate the distribution patterns, degrees of contamination, and ecological risks of 15 metals (Cd, Pb, Sb, Sn, Tl, Mo, Cr, Mn, Ni, Cu, Zn, As, V, Co, and Se), a total of 26 paired water and sediment samples as well as 7 fish samples were collected in Jinjiang River, Chengdu, China. The metal forms of the sediments were analyzed using BCR three-step sequential extraction procedures, and the metal contents of the samples were determined by ICP-MS. Four environmental indices including the geo-accumulation index, bioconcentration factor, biota-sediment accumulation factor, and the potential ecological risk index were calculated to evaluate pollution level and eco-risk of the metals. Based on the current study, Mn and Cd were preferentially associated with the exchangeable fraction, Cu and Pb were primarily in the reducible fraction, while the other metals were mainly found in the residual fraction. With the exception of Sb and Mo, the BCF values of the metals were greater than 100, especially for Zn, which had the highest BCF value (74200), suggesting that these metals had higher bioconcentration ability. Based on the geo-accumulation index and the potential ecological risk index (RI) calculated in this study, the middle reaches of Jinjiang River present moderate to severe metal pollution, and moderate to considerable potential ecological risk, especially for the risk of Cd, which should be paid more attention in the future. While non-pollution level and low ecological risk of the metals were found in the upper and lower reaches of Jinjiang River.
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Affiliation(s)
- Xueping Liu
- College of Architecture and Environment, Sichuan University, Chengdu 610065, China
| | - Jingyan Jiang
- College of Architecture and Environment, Sichuan University, Chengdu 610065, China
| | - Yan Yan
- College of Architecture and Environment, Sichuan University, Chengdu 610065, China
| | - YuanYuan Dai
- Tianjin Bohai Sea Fisheries Research Institute, Bohai Sea Fisheries Research Center, Chinese Academy of Fishery Sciences, Tianjin 300457, China
| | - Biao Deng
- College of Architecture and Environment, Sichuan University, Chengdu 610065, China
| | - Sanglan Ding
- College of Architecture and Environment, Sichuan University, Chengdu 610065, China
| | - Shijun Su
- College of Architecture and Environment, Sichuan University, Chengdu 610065, China
| | - Weiyi Sun
- College of Architecture and Environment, Sichuan University, Chengdu 610065, China
| | - Zhi Li
- College of Architecture and Environment, Sichuan University, Chengdu 610065, China.
| | - Zhiwei Gan
- College of Architecture and Environment, Sichuan University, Chengdu 610065, China.
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98
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Liang X, Song J, Duan L, Yuan H, Li X, Li N, Qu B, Wang Q, Xing J. Source identification and risk assessment based on fractionation of heavy metals in surface sediments of Jiaozhou Bay, China. MARINE POLLUTION BULLETIN 2018; 128:548-556. [PMID: 29571407 DOI: 10.1016/j.marpolbul.2018.02.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 01/29/2018] [Accepted: 02/03/2018] [Indexed: 06/08/2023]
Abstract
To identify sources and evaluate ecological risks of heavy metals in sediments of Jiaozhou Bay, contents and chemical fractions of Cd, Cr, Cu, Pb, Zn, Ni, Sb and Sn were studied. Results suggested that higher metal contents appeared at inner bay and near marine dumping area. Labile fractions of heavy metals accounted for 0.5-77% (~36%) of total contents indicating their significant anthropogenic sources. The enrichment levels of Cd and Sb were relatively higher. Cu, Ni, Cd and Zn were at low to medium risks. Cr, Pb, Sn and Sb were at no or low risks. Total contents of heavy metals were mainly controlled by natural sources, while anthropogenic inputs were important sources of labile fractions of heavy metals in sediments of Jiaozhou Bay with industrial and domestic activities as main contributors for Cu, Pb, Zn, Cr, Ni and Sn, and agricultural activities for Cd and regional coal combustion for Sb.
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Affiliation(s)
- Xianmeng Liang
- CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jinming Song
- CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China; Function Laboratory of Marine Ecology and Environmental Sciences, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China.
| | - Liqin Duan
- CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China; Function Laboratory of Marine Ecology and Environmental Sciences, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China.
| | - Huamao Yuan
- CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China; Function Laboratory of Marine Ecology and Environmental Sciences, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China
| | - Xuegang Li
- CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China; Function Laboratory of Marine Ecology and Environmental Sciences, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China
| | - Ning Li
- CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China; Function Laboratory of Marine Ecology and Environmental Sciences, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China
| | - Baoxiao Qu
- CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Function Laboratory of Marine Ecology and Environmental Sciences, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China
| | - Qidong Wang
- CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Function Laboratory of Marine Ecology and Environmental Sciences, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China
| | - Jianwei Xing
- CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Function Laboratory of Marine Ecology and Environmental Sciences, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China
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99
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Michalski R, Kostecki M, Kernert J, Nocoń K, Stahl K, Bernaś Z, Chrobok M, Jabłońska-Czapla M. Time and spatial variability in the concentrations of selected metals in water and bottom sediments of Pławniowice and Dzierżno Małe reservoirs (Poland). JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2018; 53:230-237. [PMID: 29148916 DOI: 10.1080/10934529.2017.1394733] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The migration of metals and metalloids between bottom sediments and water and the other way round is a complex process. Understanding those mechanisms is essential for recognizing transformations taking place in water reservoir ecosystems. The objective behind the following study was to define time and spatial correlations in the changes in total concentrations of selected elements (Cr, Zn, Co, Mn, Cu, Ni, Pb, As, Ba, Sb, Sr and V) in waters and bottom sediments from two water reservoirs located in Upper Silesia (Poland), i.e., Pławniowice and Dzierżno Małe. The research was carried out to demonstrate whether the bottom sediments deposited in the discussed reservoirs could pose an environmental threat due to the possible release of toxic metals and metalloids into the pelagic zone. The obtained results constitute material helping to describe the bioavailability of particular elements. They also expose the existing environmental threats for such water reservoirs and their users.
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Affiliation(s)
- Rajmund Michalski
- a Institute of Environmental Engineering, Polish Academy of Sciences , Zabrze , Poland
| | - Maciej Kostecki
- a Institute of Environmental Engineering, Polish Academy of Sciences , Zabrze , Poland
| | - Joanna Kernert
- a Institute of Environmental Engineering, Polish Academy of Sciences , Zabrze , Poland
| | - Katarzyna Nocoń
- a Institute of Environmental Engineering, Polish Academy of Sciences , Zabrze , Poland
| | - Katarzyna Stahl
- a Institute of Environmental Engineering, Polish Academy of Sciences , Zabrze , Poland
| | - Zuzanna Bernaś
- a Institute of Environmental Engineering, Polish Academy of Sciences , Zabrze , Poland
| | - Michał Chrobok
- a Institute of Environmental Engineering, Polish Academy of Sciences , Zabrze , Poland
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100
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Mondal P, Reichelt-Brushett AJ, Jonathan MP, Sujitha SB, Sarkar SK. Pollution evaluation of total and acid-leachable trace elements in surface sediments of Hooghly River Estuary and Sundarban Mangrove Wetland (India). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:5681-5699. [PMID: 29230645 DOI: 10.1007/s11356-017-0915-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Accepted: 12/01/2017] [Indexed: 05/22/2023]
Abstract
The present work investigated the spatial distribution and ecological risk assessment of total and mild acid-leachable trace elements in surface sediments (top 0-10 cm; grain size ≤ 63 μm) along the Hooghly (Ganges) River Estuary and Sundarban Mangrove Wetland, India. The trace elements, analyzed by ICPMS, showed wide range of variations with the following descending order (mean values expressed in milligrams per kilogram): Fe (25,050 ± 4918) > Al (16,992 ± 4172) > Mn (517 ± 102) > Zn (53 ± 18) > Cu (33 ± 11) > Cr (29 ± 7) > Ni (27 ± 6) > Pb (14 ± 3) > As (5 ± 1) > Se (0.37 ± 0.10) > Cd (0.17 ± 0.13) > Ag (0.16 ± 0.19) > Hg (0.05 ± 0.10). In the acid-leachable fraction, Cd (92%) is dominated followed by Pb (81%), Mn (77%), Cu (70%), and Se (58%) indicating their high mobility, imposing negative impact on the adjacent benthos. The sediment pollution indices (both enrichment factor and contamination factor) suggested severe pollution by Ag at the sampling site Sajnekhali, a wildlife sanctuary in Sundarban. The mean probable effect level quotient indicated that surface sediments in the vicinity of the studied region have 21% probability of toxicity to biota. The result of multivariate analyses affirms lithogenic sources (e.g., weathering parent rocks, dry deposition) for As, Pb, Cr, Cu, and Ni, whereas Cd and Hg originated from anthropogenic activities (such as urban and industrial activities). Both human-induced stresses and natural processes controlled trace element accumulation and distribution in the estuarine system, and remedial measures are required to mitigate the potential impacts of these hazardous trace elements.
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Affiliation(s)
- Priyanka Mondal
- Department of Marine Science, University of Calcutta, 35 Ballygunge Circular Road, Calcutta, 700019, India
| | - Amanda J Reichelt-Brushett
- Marine Ecology Research Centre, School of Environment, Science & Engineering, Southern Cross University, Military Rd, Lismore, NSW, 2480, Australia
| | - M P Jonathan
- Centro Interdisciplinario de Investigaciones y Estudios sobre Medio Ambiente y Desarrollo (CIIEMAD), Instituto Politécnico Nacional (IPN), Calle 30 de Junio de 1520, Barrio la Laguna Ticoman, Del. Gustavo A. Madero, C.P. 07340, Mexico City, Mexico
| | - S B Sujitha
- Centro Interdisciplinario de Investigaciones y Estudios sobre Medio Ambiente y Desarrollo (CIIEMAD), Instituto Politécnico Nacional (IPN), Calle 30 de Junio de 1520, Barrio la Laguna Ticoman, Del. Gustavo A. Madero, C.P. 07340, Mexico City, Mexico
| | - Santosh Kumar Sarkar
- Department of Marine Science, University of Calcutta, 35 Ballygunge Circular Road, Calcutta, 700019, India.
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