Mercury Contamination in Khramulia (Capoeta capoeta) from the Cheshme Kile and Zarrin Gol Rivers in Iran and Human Health Risk Assessment

Abstract

Total mercury concentrations were determined in muscle tissue of Khramulia (Capoeta capoeta) captured in the Cheshme Kile and Zarrin Gol Rivers, Iran. In Cheshme Kile River, 49 fish samples were collected. The mean total mercury concentration in the muscles of C. capoeta from this area was 249 ng g(-1) dw. In Zarrin Gol River, where 62 fish samples were collected, the total mercury in muscles averaged 164 ng g(-1) dw. A significant difference was found between means of mercury in the rivers (p < 0.001). All samples from the two rivers had mean mercury concentrations below the maximum allowable limits for mercury set by the Food and Agriculture Organization, World Health Organization, Standardization Administration of China and Environmental Protection Agency. The results of this study indicate that the values of hazard target quotient and estimated weekly intake are low and represent a negligible risk for human health.

Evaluation of Mercury Pollution and Risk Assessment of Human Health due to Consumption of Common Carp (Cyprinus Carpio) from the Caspian Sea

“…In which c is the mercury value in the sample studied (μg g -1 in terms of wet weight); BW is mentioned above; and ir w is the weekly ingestion rate of fish (grams week -1 ) [12,14].…”

“…The hq index was obtained based on the following equation In which ed is the exposure period (70 years), EF is the frequency of exposure (365 days/year), FIR is ingestion rate by fao (36 g/person/day) and or food ingestion rate for the whole of Iran and the coastal provinces of northern Iran by the iranian fisheries organization (20.5 g/person/day and 38 g/person/day, respectively), c is the metal concentration in the sample studied (µg g -1 ), BW is mentioned above, ta is the mean exposure time for non-carcinogens, and RFD is the reference dose of usepa (0.1 µg hg kg bw -1 day -1 ) or acceptable daily intake of who (0.23 µg hg kg bw -1 day -1 ) [14][15][16]. A µg kg -1 dw; µg kg -1 ww…”

Genetic variability and population structure of Capoeta gracilis (Keyserling 1861) populations in the southern basin rivers of the Caspian Sea as revealed by the mtDNA sequences

“…In addition, this species is important in terms of aquaculture, fisheries, sport fishing, economics and phylogeography studies. Therefore, the species is ecologically and economically important and knowledge on its biological characteristics are essential in delineating optimum nutritional and reproductive conditions (Abdoli and Naderi, 2009;Anvarifar et al, 2012;Malvandi et al, 2014).…”