Journal
BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
Volume 97, Issue 6, Pages 813-819Publisher
SPRINGER
DOI: 10.1007/s00128-016-1956-7
Keywords
Metal pollution; Estuaries; Bioaccumulation; Oysters; Seafood
Categories
Funding
- Council of Scientific and Industrial Research (CSIR), India
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The major beds of oyster along the central-west coast of India are exposed to different anthropogenic activities and are severely exploited for human consumption. In this viewpoint, tissues of oyster Crassostrea madrasensis, C. gryphoides and Saccostrea cucullata were analyzed for Cu, Ni, Cd and Pb concentrations (dry weight) from Chicalim Bay, Nerul Creek and Chapora Bay in pre-monsoon, monsoon and post-monsoon seasons. A higher concentration of Cu (134.4-2167.9 mg kg(-1)) and Cd (7.1-88.5 mg kg(-1)) was found, which is greater than the recommended limits in all the three species (and sites). Moreover, significant (p < 0.05) variations were observed for all the metals concentrations among the species, seasons and sites. The high concentrations of Cd and Cu in tissues of edible oyster pose a threat to human health. Therefore, continuous monitoring, people awareness and a stringent government policy should be implemented to mitigate the metal pollution along the studied sites.
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