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Antoniadis V, Golia EE. Spatial and temporal assessment of cadmium and chromium contamination in soils in the Karditsa region (Central Greece). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:3820-3827. [PMID: 32468378 DOI: 10.1007/s11356-020-09273-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Accepted: 05/12/2020] [Indexed: 06/11/2023]
Abstract
In this work, we aimed at monitoring Cd and Cr levels in surface soils in the Karditsa region (Central Greece). Soil samples were obtained throughout 3 years (2010 to 2012) and analyzed for extractable (DTPA) and for "pseudo"-total concentrations (aqua regia) of Cd and Cr. The temporal variability, recorded twice per year, was also assessed. Significant spatial variability was recorded and illustrated by the respective thematic maps created using geostatistics, with the use of ordinary kriging. We found a possible geochemical connection and interactions between the two studied metals that indicated common lithogenic origin, while Cd was found further enriched due to likely applied phosphate fertilizers over long periods of time. We conclude that although the mapping of soil properties and metal contents is a useful tool when initially visiting an area, further in-depth studies should be conducted; such studies should address issues related to bioavailability of soil pools that may be linked to plant concentrations and possible risks of metals being transferred to plants or even humans.
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Affiliation(s)
- Vasileios Antoniadis
- Department of Agriculture, Crop Production and Rural Environment, Laboratory of Soil Science, University of Thessaly, Fytokou Street, 36 446, Nea Ionia, Magnesia, Greece
| | - Evangelia E Golia
- Department of Agriculture, Crop Production and Rural Environment, Laboratory of Soil Science, University of Thessaly, Fytokou Street, 36 446, Nea Ionia, Magnesia, Greece.
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Chen Y, Huang H, Ding Y, Chen W, Luo J, Li H, Wu J, Chen W, Qi S. Trace metals in aquatic environments of a mangrove ecosystem in Nansha, Guangzhou, South China: pollution status, sources, and ecological risk assessment. ENVIRONMENTAL MONITORING AND ASSESSMENT 2019; 191:629. [PMID: 31511991 DOI: 10.1007/s10661-019-7732-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Accepted: 07/31/2019] [Indexed: 06/10/2023]
Abstract
Mangrove forests are widely located along coastlines. They have been identified to be inimitable and dynamic ecosystems. This study investigated the trace metals in mangrove water and surface sediments of Nansha, Guangzhou, China. Zn (148.42 ± 247.47 μg L-1) was the most abundant metal in waters, followed by As (82.34 ± 118.95 μg L-1), Pb (22.96 ± 120.50 μg L-1), and Ni (19.42 ± 47.84 μg L-1). In sediments, the most abundant metal was Fe (27.04 ± 1.91 g kg-1), followed by Mn (1049.04 ± 364.11 mg kg-1), Zn (566.33 ± 244.37 mg kg-1), and Cr (106.9 ± 28.51 mg kg-1). Higher contents of trace metals were detected in vicinity areas of the river mouth. The results of pollution indexes, including contamination factor, enrichment factor, and geo-accumulation index, indicated the pollution of Cd, Cu, Pb, and Zn in sediments. The Spearman correlation and cluster analysis were used to evaluate the metal sources. In water, the significant correlations among Zn and water chemical parameters (Na, Mg, K, Ca, conductivity, pH, and Cl) might indicate the natural source of Zn from the seawater. Water sampling sites in estuaries and coastal areas were clustered separately, which might indicate the influences of upstream water and the seawater, respectively. In sediments, the significant relationships among Cd, Pb, and Zn concentrations were likely to imply the emissions from industries and exploitation of the Pb-Zn mine. The occurrence of Cr and Cu in sediments can be attributed to the spills of lubricants or oil. Cd in sediments could cause serious ecological risk.
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Affiliation(s)
- Yingjie Chen
- School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, China
| | - Huanfang Huang
- School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, China
| | - Yang Ding
- School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, China
| | - Wenwen Chen
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, 541004, China
| | - Jie Luo
- College of Resources and Environment, Yangtze University, Wuhan, 430100, China
| | - Hui Li
- School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, China
| | - Jian Wu
- School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, China
| | - Wei Chen
- School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China
| | - Shihua Qi
- School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China.
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, China.
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Golia EE, Tsiropoulos GN, Füleky G, Floras S, Vleioras S. Pollution assessment of potentially toxic elements in soils of different taxonomy orders in central Greece. ENVIRONMENTAL MONITORING AND ASSESSMENT 2019; 191:106. [PMID: 30685789 DOI: 10.1007/s10661-019-7201-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2018] [Accepted: 01/03/2019] [Indexed: 05/27/2023]
Abstract
Four hundred fifty soil samples of the orders of Alfisols, Inceptisols, Endisols, and Vertisols from Karditsa, Trikala, and Larissa (Central Greece) were collected over a three-year period. In these samples we analyzed potentially toxic elements (PTEs) and soil properties known to affect their mobility. High regression coefficients were observed between soil pH and PTE concentrations in Alfisols, reflecting that soil pH is the dominant characteristic influencing PTEs. In Inceptisols, there was a significant interaction among the studied PTEs, probably due to PTEs having the same origin. The Endisol samples had high sand content and electrical conductivity values, resulting in high availability of all studied PTEs. In Vertisols, clay content proved to be the most important parameter influencing PTE levels. Factor analysis was also used in order to clarify the possible sources of metals in the studied areas.
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Affiliation(s)
- E E Golia
- School of Agriculture Crop Production and Agricultural Environment, Laboratory of Soil Science, University of Thessaly, Fytokou Street,, 384 46, Nea Ionia, Magnesia, Greece.
| | - G N Tsiropoulos
- Faculty of Health Sciences, School of Medicine, Aristotle University of Thessaloniki, 541 24, Thessaloniki, Greece
| | - G Füleky
- Department of Soil Science and Agro chemistry, Szent István University, Godollo, Hungary
| | - St Floras
- School of Agriculture Crop Production and Agricultural Environment, Laboratory of Soil Science, University of Thessaly, Fytokou Street,, 384 46, Nea Ionia, Magnesia, Greece
| | - Sp Vleioras
- Regional Center of Quality Control and Plant Protection of Magnesia, Laboratory of Quality Control, Torousia and Nikolaidi, Pedion Areos, 383 34, Volos, Greece
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Zhao XM, Yao LA, Ma QL, Zhou GJ, Wang L, Fang QL, Xu ZC. Distribution and ecological risk assessment of cadmium in water and sediment in Longjiang River, China: Implication on water quality management after pollution accident. CHEMOSPHERE 2018; 194:107-116. [PMID: 29197813 DOI: 10.1016/j.chemosphere.2017.11.127] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 11/16/2017] [Accepted: 11/22/2017] [Indexed: 06/07/2023]
Abstract
In early January 2012, the Longjiang River was subjected to a serious cadmium (Cd) pollution accident, which led to negatively environmental and social impacts. A series of measures of emergency treatment were subsequently taken to reduce water Cd level. However, little information was available about the change of Cd level in environmental matrices and long-term effect of this pollution accident to aquatic ecosystem. Thus, this study investigated the distribution of Cd in water and sediment of this river for two years since pollution accident, as well as assessed its ecological risk to aquatic ecosystem of Longjiang River. The results showed that it was efficient for taking emergency treatment measures to decrease water Cd concentration to below the threshold value of national drinking water quality standard of China. There was high risk (HQ > 1) to aquatic ecosystem in some of reaches between February and July 2012, but low or no risk (HQ < 1) between December 2012 to December 2013. Cd concentration in sediment in polluted reaches increased after pollution accident and emergency treatments in 2012, but decreased in 2013. During flood period, the sediment containing high concentration of Cd in Longjiang River was migrated to downstream Liujiang River. Cd content in sediment was reduced to background level after two years of the pollution accident occurrence. The study provides basic information about Cd levels in different media after pollution accident, which is helpful in evaluating the effectiveness of emergency treatments and the variation of ecological risk, as well as in conducting water management and conservation.
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Affiliation(s)
- Xue-Min Zhao
- South China Institute of Environmental Science, Ministry of Environmental Protection, Guangzhou 510655, China.
| | - Ling-Ai Yao
- South China Institute of Environmental Science, Ministry of Environmental Protection, Guangzhou 510655, China
| | - Qian-Li Ma
- South China Institute of Environmental Science, Ministry of Environmental Protection, Guangzhou 510655, China
| | - Guang-Jie Zhou
- The Swire Institute of Marine Science and School of Biological Sciences, The University of Hong Kong, Pokfulam, Hong Kong, China
| | - Li Wang
- South China Institute of Environmental Science, Ministry of Environmental Protection, Guangzhou 510655, China
| | - Qiao-Li Fang
- South China Institute of Environmental Science, Ministry of Environmental Protection, Guangzhou 510655, China
| | - Zhen-Cheng Xu
- South China Institute of Environmental Science, Ministry of Environmental Protection, Guangzhou 510655, China.
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Contamination and Risk Assessment of Heavy Metals in Lake Bed Sediment of a Large Lake Scenic Area in China. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2016; 13:ijerph13070741. [PMID: 27455296 PMCID: PMC4962282 DOI: 10.3390/ijerph13070741] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Revised: 07/12/2016] [Accepted: 07/14/2016] [Indexed: 11/16/2022]
Abstract
The exposure of heavy metals to lake bed sediment of scenic areas may pose risks on aquatic ecosystems and human health, however very few studies on risk assessment have been reported for scenic areas. Accordingly, this study determined concentration levels, and assessed contamination characteristics and risks, of heavy metals in lake bed sediment of National Scenic Areas Songhuahu (NSAS) in China. The concentrations of Zn, Cr, Pb, Ni, and Cu were determined in 29 bed sediment samples. Results showed that the mean values of Zn, Cr, Pb, Ni, and Cu were 92.69, 90.73, 38.29, 46.77, and 49.44 mg/kg, respectively. Pearson correlation coefficients indicated that organic matter was a major factor influencing distribution of heavy metals. The results for enrichment factors indicated that contamination rates and anthropogenic inputs of single heavy metals decreased in the order Cu > Ni > Pb > Cr > Zn; results of Nemerow integrated pollution index suggested that 72.41% of sampling sites were exposed to low to moderately integrated pollution, and 27.59% of sampling sites were exposed to strongly integrated pollution. According to results for potential ecological risk index, ecological risks of single and all the heavy metals in bed sediment from all the sampling sites were low. Human risks were assessed with hazardous quotients, and the results suggested that exposure of heavy metals to bed sediment posed no or little risk to human health, and the pathway of ingestion significantly contributed to human health risks.
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