Evaluation of heavy metal contamination in the coastal aquaculture zone of the Red River Delta (Vietnam).
- Resource Type
- Academic Journal
- Authors
- Le ND; Laboratory of Environmental Chemistry, Institute of Natural Product Chemistry (INPC), Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam; Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam. Electronic address: dalenhu@gmail.com.; Hoang TTH; Laboratory of Environmental Chemistry, Institute of Natural Product Chemistry (INPC), Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam. Electronic address: thuha.km2@gmail.com.; Phung VP; Institute for Technology of Radioactive and Rare Elements, 48 Lang Ha Str., Dong Da Dist, Hanoi, Viet Nam. Electronic address: Phungvuphong@yahoo.com.; Nguyen TL; Institute for Technology of Radioactive and Rare Elements, 48 Lang Ha Str., Dong Da Dist, Hanoi, Viet Nam. Electronic address: nguyenlien1507@gmail.com.; Rochelle-Newall E; Sorbonne Université, Univ Paris Est Creteil, IRD, CNRS, INRAE, Institute of Ecology and Environmental Sciences of Paris (iEES-Paris), 4 Place Jussieu, 75005, Paris, France. Electronic address: emma.rochelle-newall@ird.fr.; Duong TT; Institute of Environmental Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam. Electronic address: duongthuy0712@gmail.com.; Pham TMH; Hanoi University of Industry, 298 Cau Dien, Bac Tu Liem, Hanoi, Viet Nam. Electronic address: phamthimaihuong76@yahoo.com.vn.; Phung TXB; Electric Power University, 235 Hoang Quoc Viet, Bac Tu Liem, Hanoi, Viet Nam. Electronic address: binhptx@epu.edu.vn.; Nguyen TD; Center for Research and Technology Transfer, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam. Electronic address: ngtiend@gmail.com.; Le PT; University of Science and Technology of Hanoi, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Cau Giay, Hanoi, Viet Nam. Electronic address: lephuongthu@gmail.com.; Pham LA; University of Science and Technology of Hanoi, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Cau Giay, Hanoi, Viet Nam. Electronic address: pham-le.anh@usth.edu.vn.; Nguyen TAH; University of Science, Vietnam National University, Hanoi, 19 Le Thanh Tong, Hoan Kiem, Hanoi, Viet Nam. Electronic address: nguyenthianhhuong@hus.edu.vn.; Le TPQ; Laboratory of Environmental Chemistry, Institute of Natural Product Chemistry (INPC), Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam; Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam. Electronic address: quynhltp@gmail.com.
- Source
- Publisher: Elsevier Science Ltd Country of Publication: England NLM ID: 0320657 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1879-1298 (Electronic) Linking ISSN: 00456535 NLM ISO Abbreviation: Chemosphere Subsets: MEDLINE
- Subject
- Language
- English
Coastal aquaculture contributes significantly to the local economy of many countries however water quality issues in the coastal regions are threatening the sustainability of this economic activity. This paper presents the analysis of seven heavy metals (HM) in surface seawater and wastewater from the Red River coastal aquaculture zone during 2019-2020. HM concentrations (μg.L -1 ) from 72 seawater samples were: Zn: 60.76 (0.5-188.0); Cu: 26.91 (0.10-96.0); Pb: 7.27 (0.8-31.2); Cr: 6.71 (0.6-28.4); As: 1.38 (0.15-5.78); Cd: 0.44 (0.04-2.41); and Hg: 0.34 (0.02-1.39). All mean values of HM in seawater were lower than the Vietnam regulatory limits for aquaculture seawater although high individual HM concentrations were found in some isolated seawater samples. Concerning wastewater quality, only mean As concentration was higher than the Vietnam regulatory limit for surface water quality, despite the fact that high concentrations of other individual HM were observed. The PCA analysis on the entire dataset of seawater and wastewater samples revealed that HM concentrations in seawater originate from various sources including human activities and natural conditions. The total potential ecological risk index (averaging 18.6; from 7.48 to 39.05) for the Red River coastal zone is in the low range. These results provide a scientific basis for better management of the coastal environment which is important for the sustainable development of the aquaculture industry in this area.
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