Research of the Olgokhta river upper reach ecological state on the content of heavy metals

The article provides information on the content of heavy metals in surface waters, bottom sediments and muscles of silver carp in the Olgokhta river upper reach. The gathered data analysis shows that concentration of heavy metals in researched objects does not exceed their maximum allowable values. The acquired data could be considered as a background value for the region due to the absence of anthropogenic load on the watercourse.