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.

Lamellidens marginalis是一种容易获得的具有高营养价值的食品。本研究基于印度东部加尔各答湿地（EKW）生产贻贝，人类食用。因此，研究废水和贻贝中的重金属污染及其向人类的迁移研究需要大量时间来评估对人类的健康风险。本研究的重点是外暴露器官镉积累和内脏L. marginalis。从田间收集贻贝，沉积物和水，并在实验室中进行分析。对环境因素进行原位分析。这项调查工作是在EKW附近对贻贝的消费者进行的，以预测镉对人类的影响。结果表明，水中镉的浓度对边缘菌的生物积累过程具有相对重要的作用。收入较低，年龄在40岁以上，居住在EKW附近的人极有可能遭受镉污染。在年龄和收入方面，以上各组的危险商值最高。建议使用“生物滤池”技术来减轻EKW处镉的生物放大作用。