| Popis: |
This study was conducted to know the seasonal dynamics of heavy metal (Zn, Cu, Cr, Cd, Pb and Hg) concentrations in marine fish from the Bay of Bengal coast of Bangladesh in pre-monsoon, monsoon and post-monsoon seasons. The fish samples of various species viz. Churi (Trichiurus lepturus), Loittya (Harpadon nehereus), Ilish (Tenualosa ilisha) in St-1; Churi, Loittya, Ilish, Surma (Euthynnus affinis) in St-2; and Poa (Otolithoides pama), Loittya, Ilish in St-3 were collected seasonally from fish landing stations during December 2017 to November 2018. The samples were analyzed by using UNICAM-929 atomic absorption spectrophotometer following AOAC (2012) in the Food Laboratory of the SGS Bangladesh Limited., Dhaka. The results showed that among the metals, only Zn was detected in every station over the seasons. Overall metal accumulation, Zn content found more followed by Cu and Cr, whereas Cd, Pb and Hg were below the lower limit of detection in all the collected fish samples. Therefore, the study concluded that the fish are safe for human consumption as well as for public health and food safety measures ensured by common marine fish of Bangladesh. |
