Ecosystem impact and dietary exposure of polychlorinated biphenyls (PCBs) and heavy metals in Chinese mitten crabs (Eriocheir sinensis) and their farming areas in Jiangsu, China
This study investigated the presence of 18 dioxin-like and non-dioxin-like polychlorinated biphenyls (dl- and ndl-PCBs), heavy metals (Cd, Hg, Pb, and As) in Chinese mitten crabs (Eriocheir sinensis) and their distribution in Jiangsu, China. Risk assessment and source apportionment were employed for...
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| Format: | Article |
| Language: | English |
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Elsevier
2021-12-01
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| Series: | Ecotoxicology and Environmental Safety |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0147651321010484 |
| _version_ | 1818420779330568192 |
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| author | Hanxiaoya Zhang Haoran Zhang Ling Zhao Beilei Zhou Pan Li Beibei Liu Yulong Wang Cuifeng Yang Kang Huang Cunzheng Zhang |
| author_facet | Hanxiaoya Zhang Haoran Zhang Ling Zhao Beilei Zhou Pan Li Beibei Liu Yulong Wang Cuifeng Yang Kang Huang Cunzheng Zhang |
| author_sort | Hanxiaoya Zhang |
| collection | DOAJ |
| description | This study investigated the presence of 18 dioxin-like and non-dioxin-like polychlorinated biphenyls (dl- and ndl-PCBs), heavy metals (Cd, Hg, Pb, and As) in Chinese mitten crabs (Eriocheir sinensis) and their distribution in Jiangsu, China. Risk assessment and source apportionment were employed for evaluating the eco-toxicological impact and human exposure. It was found that the compositions of PCBs varied spatially, suggesting different sources of pollutants, whilst PCB 28, 105, 114, and 126 were consistently found in all sample types, suggesting a common pollution source remained, and the bio-accumulation process was in effect. The total PCBs in sediment were found much higher than in water, and brown meat had the highest and most diverse PCB congeners among all tissues. The presence of heavy metals was found in all samples in descending order of As>Cd>Pb>Hg and in the order of shell>brown meat>white meat>gill for crabs. The results of risk assessment indicated that the potential carcinogenic and non-carcinogenic risks were within the acceptable range for long-term consumption of the crabs overall. However, the highest toxic equivalent (TEQ), carcinogenic, and non-carcinogenic risks were all recorded in Location C, where dl-PCB 126, 169, and As contributed to the majority of the risks. The ecological risk posed by all HMs was low, but cases of serious point source pollution have been found in the investigated regions, and risks caused by Cd individually should raise concerns. Source apportionment study revealed that the contaminants mostly originated from anthropogenic activities. Natural deposition and transportation played an important role as well. |
| first_indexed | 2024-12-14T12:59:53Z |
| format | Article |
| id | doaj.art-64d3cd9dd5e642c191b6d0d1ff00dccf |
| institution | Directory Open Access Journal |
| issn | 0147-6513 |
| language | English |
| last_indexed | 2024-12-14T12:59:53Z |
| publishDate | 2021-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ecotoxicology and Environmental Safety |
| spelling | doaj.art-64d3cd9dd5e642c191b6d0d1ff00dccf2022-12-21T23:00:28ZengElsevierEcotoxicology and Environmental Safety0147-65132021-12-01227112936Ecosystem impact and dietary exposure of polychlorinated biphenyls (PCBs) and heavy metals in Chinese mitten crabs (Eriocheir sinensis) and their farming areas in Jiangsu, ChinaHanxiaoya Zhang0Haoran Zhang1Ling Zhao2Beilei Zhou3Pan Li4Beibei Liu5Yulong Wang6Cuifeng Yang7Kang Huang8Cunzheng Zhang9Key Lab of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Key Laboratory of Control Technology and Standard for Agri-product Safety and Quality, Ministry of Agriculture, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, 210014 Nanjing, Jiangsu, PR China; School of Chemical Sciences, The University of Auckland, Auckland 1010, New ZealandKey Lab of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Key Laboratory of Control Technology and Standard for Agri-product Safety and Quality, Ministry of Agriculture, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, 210014 Nanjing, Jiangsu, PR China; College of Plant protection, Nanjing Agricultural University, 210095, Nanjing, Jiangsu, PR ChinaKey Lab of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Key Laboratory of Control Technology and Standard for Agri-product Safety and Quality, Ministry of Agriculture, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, 210014 Nanjing, Jiangsu, PR China; College of Plant protection, Nanjing Agricultural University, 210095, Nanjing, Jiangsu, PR ChinaKey Lab of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Key Laboratory of Control Technology and Standard for Agri-product Safety and Quality, Ministry of Agriculture, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, 210014 Nanjing, Jiangsu, PR ChinaKey Lab of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Key Laboratory of Control Technology and Standard for Agri-product Safety and Quality, Ministry of Agriculture, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, 210014 Nanjing, Jiangsu, PR ChinaKey Lab of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Key Laboratory of Control Technology and Standard for Agri-product Safety and Quality, Ministry of Agriculture, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, 210014 Nanjing, Jiangsu, PR ChinaKey Lab of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Key Laboratory of Control Technology and Standard for Agri-product Safety and Quality, Ministry of Agriculture, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, 210014 Nanjing, Jiangsu, PR ChinaTaiyuan University, 030032 Taiyuan, Shanxi, PR ChinaSchool of Chemical Sciences, The University of Auckland, Auckland 1010, New ZealandKey Lab of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Key Laboratory of Control Technology and Standard for Agri-product Safety and Quality, Ministry of Agriculture, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, 210014 Nanjing, Jiangsu, PR China; College of Plant protection, Nanjing Agricultural University, 210095, Nanjing, Jiangsu, PR China; School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, PR China; State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, PR China; Corresponding author at: Key Lab of Food Quality and Safety of Jiangsu Province-State Key Laboratory Breeding Base, Key Laboratory of Control Technology and Standard for Agri-product Safety and Quality, Ministry of Agriculture, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, 210014 Nanjing, Jiangsu, PR China.This study investigated the presence of 18 dioxin-like and non-dioxin-like polychlorinated biphenyls (dl- and ndl-PCBs), heavy metals (Cd, Hg, Pb, and As) in Chinese mitten crabs (Eriocheir sinensis) and their distribution in Jiangsu, China. Risk assessment and source apportionment were employed for evaluating the eco-toxicological impact and human exposure. It was found that the compositions of PCBs varied spatially, suggesting different sources of pollutants, whilst PCB 28, 105, 114, and 126 were consistently found in all sample types, suggesting a common pollution source remained, and the bio-accumulation process was in effect. The total PCBs in sediment were found much higher than in water, and brown meat had the highest and most diverse PCB congeners among all tissues. The presence of heavy metals was found in all samples in descending order of As>Cd>Pb>Hg and in the order of shell>brown meat>white meat>gill for crabs. The results of risk assessment indicated that the potential carcinogenic and non-carcinogenic risks were within the acceptable range for long-term consumption of the crabs overall. However, the highest toxic equivalent (TEQ), carcinogenic, and non-carcinogenic risks were all recorded in Location C, where dl-PCB 126, 169, and As contributed to the majority of the risks. The ecological risk posed by all HMs was low, but cases of serious point source pollution have been found in the investigated regions, and risks caused by Cd individually should raise concerns. Source apportionment study revealed that the contaminants mostly originated from anthropogenic activities. Natural deposition and transportation played an important role as well.http://www.sciencedirect.com/science/article/pii/S0147651321010484Persistent pollutantsSource apportionmentEcological impactToxic equivalent (TEQ)Hazard quotient |
| spellingShingle | Hanxiaoya Zhang Haoran Zhang Ling Zhao Beilei Zhou Pan Li Beibei Liu Yulong Wang Cuifeng Yang Kang Huang Cunzheng Zhang Ecosystem impact and dietary exposure of polychlorinated biphenyls (PCBs) and heavy metals in Chinese mitten crabs (Eriocheir sinensis) and their farming areas in Jiangsu, China Ecotoxicology and Environmental Safety Persistent pollutants Source apportionment Ecological impact Toxic equivalent (TEQ) Hazard quotient |
| title | Ecosystem impact and dietary exposure of polychlorinated biphenyls (PCBs) and heavy metals in Chinese mitten crabs (Eriocheir sinensis) and their farming areas in Jiangsu, China |
| title_full | Ecosystem impact and dietary exposure of polychlorinated biphenyls (PCBs) and heavy metals in Chinese mitten crabs (Eriocheir sinensis) and their farming areas in Jiangsu, China |
| title_fullStr | Ecosystem impact and dietary exposure of polychlorinated biphenyls (PCBs) and heavy metals in Chinese mitten crabs (Eriocheir sinensis) and their farming areas in Jiangsu, China |
| title_full_unstemmed | Ecosystem impact and dietary exposure of polychlorinated biphenyls (PCBs) and heavy metals in Chinese mitten crabs (Eriocheir sinensis) and their farming areas in Jiangsu, China |
| title_short | Ecosystem impact and dietary exposure of polychlorinated biphenyls (PCBs) and heavy metals in Chinese mitten crabs (Eriocheir sinensis) and their farming areas in Jiangsu, China |
| title_sort | ecosystem impact and dietary exposure of polychlorinated biphenyls pcbs and heavy metals in chinese mitten crabs eriocheir sinensis and their farming areas in jiangsu china |
| topic | Persistent pollutants Source apportionment Ecological impact Toxic equivalent (TEQ) Hazard quotient |
| url | http://www.sciencedirect.com/science/article/pii/S0147651321010484 |
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