Cadmium bioaccumulation in Lamellidens marginalis and human health risk assessment: A case study in India
2020
Ghosh, Santu | Mondal, Ayan | Gangopadhyay, Sohini | Mandal, Sudipto
Lamellidens marginalis is an easily available food with high nutritive value. The present study is based on the East Kolkata Wetlands (EKW), India that produces mussels, consumed by human. Thus, the study of heavy metal pollution in the wastewater and mussel, and its transport to human is considered to be need of the hour to assess the health risk to human. The present study focuses on the cadmium accumulation in the outer exposed organs and the internal organs of L. marginalis. The mussel, sediment, and water were collected from the field and analyzed in the laboratory. The environmental factors were analyzed in situ. The survey work was conducted among the consumers of mussel around the EKW to predict the effect of cadmium on human. The result showed that the cadmium concentration of water was relatively important for the bioaccumulation process in L. marginalis. People having low level of income and age above forty, living adjoining the EKW were at high risk of cadmium pollution. The hazard quotient value of the above group was highest among all the groups across age and income. A ‘biofilter’ technique was suggested to mitigate the biomagnification of cadmium at the EKW.
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