TY JOUR TI AVERAGE CHARACTERISTIC CONCENTRATIONS OF TOXICANTS IN BOTTOM SEDIMENTS OF THE VOLGA DELTA AND NORTHERN PART OF THE CASPIAN SEA KW bottom sediments KW control KW pollution KW toxicants KW concentration KW dispersity JO Vestnik of Astrakhan State Technical University. Series: Fishing industry AU Popova, O.. AU Karygina, N.. PY 2017 IS PB Astrakhan State Technical University