Human health risk assessment for exposure to heavy metals in finfish and shellfish from a tropical estuary

Autor: Md. Mohiuddin, Mohammad Belal Hossain, Mir Mohammad Ali, Md Kamal Hossain, Ahasan Habib, Sanjida Afrin Semme, Md. Refat Jahan Rakib, Md. Asrafur Rahman, Jimmy Yu, Mohammad Khalid Al-Sadoon, Aneela Gulnaz, Takaomi Arai
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Journal of King Saud University: Science, Vol 34, Iss 4, Pp 102035- (2022)
Druh dokumentu: article
ISSN: 1018-3647
DOI: 10.1016/j.jksus.2022.102035
Popis: This investigation measured the extent of heavy metal concentrations (Cr, Pb, Fe, Zn and Ni) in nine finfish and shellfish species from a tropical estuary to determine the degree of pollution and evaluate the human health risk from the exposure to heavy metals through consumption of fish. The hierarchy of mean concentrations (mg/kg) of the heavy metals were: Zn (398.47) > Fe (83.015) > Cr (0.906) > Ni (0.233) > Pb (0.128). The metal concentrations in the edible tissues were ranked in the following sequence: A. bato > C. cirrhosus > A. grammepomus > M. dobsoni > P. paradiseus > O. pama > M. rosenbergii > N. smithi > S. phasa. The results demonstrated that the concentration of Cr and Zn was considerably higher than the guideline values of FAO. Estimated daily intake (EDI), hazard quotient (HQ), hazard index (HI), and cancer risk (CR) values were within the acceptable threshold for both adults and children. However, the EDIs of local consumers in the research area for both adults and children were lower than the recommended daily amount (RDA), following the order of Zn > Fe > Cr > Ni > Pb. The HQs of the elements followed the order of Zn > Cr > Fe > Pb > Ni. The investigated HI was not exceeding the recommended limit.
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