Metal content in bottom sediments of the central part of the Pechora Sea in the current period

Based on the data from the marine researches of Knipovich Polar Research Institute of Marine Fisheries and Oceanography (PINRO) carried out in the period of 2010-2015, the content of some metals in bottom sediments of the central part of the Pechora Sea has been analyzed at 99 stations. The particle size distribution and pH of the surface layer of sediments have been investigated. No interannual changes in the studied parameters have been revealed. According to the studies conducted, the predominant form of bottom sediments is fine sand, occasionally sandy loam has been found. Comparison of the average relative content of the number of studied trace elements in the Pechora Sea bottom sediments with those ones of the White Sea and the Upper Continental Crust (UCC) standard has not revealed any fundamental differences. It has been shown that Pb and Cd content is the most variable in the bottom sediments. The median values of the concentration factors of all the studied trace elements in the Pechora Sea sediments, normalized by UCC, are noticeably less than 1...