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- Title
Heavy metal contamination and potential health risk assessment associated with selected farmed fish in Rajshahi, Bangladesh.
- Authors
Ghosh, Jibon Kumar; Shahidul Islam, Md.; Tariqul Islam, Md.; Mahedul Islam Murad, Md.; Mahabubur Rahman, Md.
- Abstract
The present investigation was conducted with a view to evaluating heavy metal contamination of four selected fish species (Labeo rohita, Catla catla, Cirrhinus cirrhosus, and Hypophthalmichthys molitrix) and the potential health risks of its consumers in Rajshahi, Bangladesh. Twenty-one feed samples and eighty-four fish specimens were collected from seven different farms scattered across the Rajshahi district and subsequent screening of heavy metal was conducted through atomic absorption spectrophotometer (AAS). The heavy metal concentration of Pb, Co, Cr, Cd and Ni was found beyond the permissible limits in fish feed and raw fish with a strong correlative association of heavy metals between them. Metal pollution index revealed that C. cirrhosus was the most polluted species while L. rohita was the least. Health risk assessment was conducted by evaluating estimated daily intake (EDI), health risk index (HRI), target hazard quotient (THQ), hazard index (HI) and target carcinogenic risk (TR). EDI of metal was higher in children, and according to HRI, they were at two to three times more risk compared to the adults. THQ of all the heavy metals across the selected species was found to be less than 1 demonstrating the absence of non-carcinogenic hazard for individual heavy metal intake. However, HI values indicated that the cumulative effect of those heavy metals might impart some degree of non-carcinogenic effect over lifelong exposure. TR values suggested that the carcinogenic effect of Pb remained negligible while Cr, Cd and Ni had low to moderate risk of developing cancer with a greater probability of its occurrence in women than men.
- Subjects
RAJSHAHI (Bangladesh); HEALTH risk assessment; HEAVY metals; SILVER carp; ROHU; CATLA catla; FISH feeds
- Publication
Jordan Journal of Biological Sciences, 2023, Vol 16, Issue 3, p467
- ISSN
1995-6673
- Publication type
Article
- DOI
10.54319/jjbs/160310