Biological risk assessment of heavy metals in sediments and health risk assessment in bivalve mollusks from Kaozhouyang Bay, South China.

Autor: Wang XN; South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China; Key Laboratory of Aquatic Product Processing, Ministry of Agriculture, No. 213, Huadu Avenue East, Guangzhou 510800, China., Gu YG; South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China; Key laboratory of Fishery Ecology and Environment, Guangdong Province, Guangzhou 510300, China; Key laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, Guangzhou 510300, China. Electronic address: hydrobio@163.com., Wang ZH; South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China; Key Laboratory of Aquatic Product Processing, Ministry of Agriculture, No. 213, Huadu Avenue East, Guangzhou 510800, China., Ke CL; South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China; Key Laboratory of Aquatic Product Processing, Ministry of Agriculture, No. 213, Huadu Avenue East, Guangzhou 510800, China., Mo MS; South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China; Key Laboratory of Aquatic Product Processing, Ministry of Agriculture, No. 213, Huadu Avenue East, Guangzhou 510800, China.
Jazyk: angličtina
Zdroj: Marine pollution bulletin [Mar Pollut Bull] 2018 Aug; Vol. 133, pp. 312-319. Date of Electronic Publication: 2018 Jun 19.
DOI: 10.1016/j.marpolbul.2018.05.059
Abstrakt: The concentrations of heavy metals (Cd, Pb, Cr, Ni, Cu, Zn, Hg and As) in surface sediments and bivalve mollusks in Kaozhouyang Bay were investigated. A biological risk analysis of the sediments indicated that ten sites (about 76.92% of the total number of sites) had a 21% incidence probability of toxicity. A health risk analysis of the bivalve mollusks indicated that Cu and As posed low risks to consumer health. On the basis of the target hazard quotient (THQ), adverse effects may occur based on total THQ (TTHQ). The highest TTHQ was found in the species, Ostrea rivularis, which had the highest capacity for the bioaccumulation (factor > 38) of Cd.
(Copyright © 2018 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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