Essential and non-essential trace elements in fish consumed by indigenous peoples of the European Russian Arctic.

摘要: Abstract In present study, the analyses of essential [copper (Cu), cobalt (Co), selenium (Se) and zinc (Zn)] non-essential elements [mercury (Hg), lead (Pb), cadmium (Cd) arsenic (As)] in 7 fish species consumed by indigenous people European Russia Arctic were conducted. The Nenets Autonomous Region, which is located north-eastern part Russia, was chosen as a Region interest. Within it, group (n = 6000) constitutes approximately 10% total population. Nearly all live traditional life with caught local waters subsistence resource. We found that northern pike contained twice amount Hg compared roach, 3–4 times more than other commonly Russian (namely, char, pink salmon, navaga, humpback whitefish inconnu). Fish concentrations relatively low, but comparable to those reported investigations illustrate decreasing south-to-north trend concentrations. current only for bioaccumulated significantly. species, both Cd Pb considerably lower Hg. As observed are similar previously published, it assumed be primarily non-toxic organic forms. All tissues rich Se, Cu Zn and, dependent on consumed, may contribute significantly nutritional intake peoples. large significant differences molar Se/Hg ratios, ranged from 2.3 71.1 salmon. Values latter 1 appear enhance protection against toxicity.