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Heavy Metals Contamination In Highly Consumed Small Indigenous Fish Species And Possible Human Health Risk Implications In Bangladesh | 95994
ISSN: 2155-9872
Journal of Analytical & Bioanalytical Techniques
Open Access
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Heavy metals contamination in highly consumed small indigenous fish species and possible human health risk implications in Bangladesh
World Congress on Mass Spectrometry and Analytical Techniques
Shamshad B Quraishi, Maesha Musarrat, A K M Atique Ullah, Shamima Akon, Naznin Shultana Moushumi, Quamrun Nahar and Syeda SalihaSaliheen Sultana
Bangladesh Atomic Energy Commission, BangladeshCollege of Home Economics, BangladeshBangladesh Institute of Research and Rehabilitation in Diabetes, Bangladesh
Fish is the most important single source of high-quality protein which contributes about 55% of the animal protein of
Bangladeshi people. However, due to the rapid urbanization and unplanned industrialization, aquatic environments are
being polluted with various types of chemical contaminants especially with heavy metals that are non-biodegradable and
carcinogenic. Consequently, it is emergent to evaluate the level of contamination in fish species as they are one of the most
important ingredients among different types of biota. Indigenous small fishes are supposed to be contained high quality
protein and people usually take them with high rate. Therefore, the research was aimed to determine the toxic elements in
highly consumed indigenous small fish with a good number of varieties with a view to assess the possible human health. The
concentrations of five heavy metals (Pb, Cd, Cr, As and Hg) in 14 fish species collected from local markets of Dhaka city,
Bangladesh were measured using Atomic Absorption Spectrometry (AAS) technique. The estimated values for Pb, Cd, Cr and
Hg were found to be 0.284-1.554, 0.010-0.014, 0.055-0.431 and 0.027-0.252 mg/kg, respectively. However, the concentration
of As in the investigated fish species was not detected (method quantification limit, 0.08 mg/kg). The Estimated Daily Intake
(EDI) of heavy metals was calculated based on mean fish consumption of 49.5 g/person/day by Bangladeshi households and
indicated that no risk to people???s health due to consumption of indigenous small fish. Moreover, from the estimation of noncarcinogenic
risk, the intake of individual heavy metals as well as combined heavy metals through the consumption of selected
fish species were found safe for human health.