Environmental Investigations of the Coastal Areas Sediments of the Kola Peninsula (Chemical Analysis and Bioassay)

Abstract— The content of metals, organochlorines, and C_org in the bottom sediments of the coastal areas of the Kola Peninsula was studied. The grain size analysis of the bottom sediments was carried out. The toxic potential of the sediment elutriates for unicellular algae Phaeodactylum tricornutum and for larvae of brine shrimp Artemia salina was studied. The influence of the grain size, C_org, and human activities on metals and organochlorines accumulation in the sediments was discussed. Correlations between the survival rate of A. salina larvae in the sediment elutriates and the content of pollutants, C_org, and <0.063 mm fraction in the bottom sediments were calculated.