Bioaccumulation and heavy metal concentration in tissues of some commercial fishes from the Meghna River Estuary in Bangladesh and human health implications

Despite the beneficial aspect of aquatic foods consumption, bioaccumulation of toxic metals in fish can enhance the health risk for consumers. Heavy metals were measured from editable tissues of some commercial fish species such as Latis calcarifer, Silonia silondia, Clupisoma garua, Planiliza subvi...

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Published inTERI information digest on energy and environment Vol. 18; no. 3; pp. 311 - 312
Main Authors Ahmed, A S S, Rahman, M, Sultana, S, Babu, S M O F, Sarker, Md S I
Format Journal Article
LanguageEnglish
Published New Delhi The Energy and Resources Institute 01.09.2019
Subjects
Bioaccumulation
Cadmium
Carcinogens
Children
Chromium
Clupisoma garua
Commercial species
Consumers
Contaminants
Copper
Estuaries
Fish
Food consumption
Health risk assessment
Health risks
Heavy metals
Lead
Metal concentrations
Metals
Quotients
Rivers
Silonia silondia
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Summary:Despite the beneficial aspect of aquatic foods consumption, bioaccumulation of toxic metals in fish can enhance the health risk for consumers. Heavy metals were measured from editable tissues of some commercial fish species such as Latis calcarifer, Silonia silondia, Clupisoma garua, Planiliza subviridis, Otolithoides pama, Tenulosa ilisa, Rhinomugil corsula, and Aila coila in the Meghna River Estuary in Noakhali district. Heavy metals such as As, Pb, Cd, Cu, and Cr were detected by ICP-MS, which were significantly different. The mean BAFs of the contaminants were found in the following order: Pb (1042.29) > Cr (1036.47) > As (934.84) > Cd (832.77) > Cu (772). Further, L. calcarifer, S. silondia, C. garua, and P. subviridis showed the bioaccumulative status. To assess the health risk effects, estimated daily intake (EDI), target hazard quotient (THQ), and carcinogenic risk (CR) were conducted. THQs for both adult and children consumers were <1, indicating that consumers would not experience the non-carcinogenic health effects. Although children were more susceptible than adults, CR for all the consumers was found in the acceptable range (10-6 to 10-4). (5 Figures, 4 Tables, 175 References)
ISSN:0972-6721
1875-9297