Abstract
Toxic chemicals from polluted seas can enter the human body through seafood consumption and cause health problems. The aim of this study was to evaluate the levels of selected heavy metals and trace elements among fishermen who frequently consumed seafood and controls who consumed seafood less frequently in four provinces on the shores of the Sea of Marmara, which is heavily polluted by industrial activities. Fourteen elements (antimony, arsenic, cadmium, chromium, copper, iron, lead, manganese, mercury, nickel, selenium, strontium, vanadium, and zinc) were analyzed in hair samples using the inductively coupled plasma-mass spectrometer method. Levels of arsenic (0.147 ± 0.067µg/g vs. 0.129 ± 0.070µg/g, p = 0.025), chromium (0.327 ± 0.096µg/g vs. 0.269 ± 0.116µg/g, p < 0.01), nickel (0.469 ± 0.339µg/g vs. 0.403 ± 0.368µg/g, p = 0.015), strontium (1.987 ± 1.241µg/g vs. 1.468 ± 1.190µg/g, p < 0.01), and zinc (103.3 ± 43.1µg/g vs. 92.7 ± 37.4µg/g, p = 0.047) were higher in the fisherman group than in the control group. No difference was found between the groups in terms of other elements. The findings suggest that heavy metal-trace element contamination in the Sea of Marmara may increase the exposure levels of individuals to some chemicals through seafood consumption.
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