Effect of PCBs on the rate of carbon-14 uptake in phytoplankton isolates from oligotrophic and eutrophic lakes

Polychlorinated hydrocarbons in fishes, blue mussel (Mytilus edulis) and bottom sediments of the south-western Baltic Sea

“…Polychlorinated hydrocarbons are characterised by their high chemical stability and resistance to atmospheric factors (Fishbein 1972, Södergren andGelin 1983). Those compounds practically do not dissolve in water, but they dissolve well in organic solvents, fats, and natural oils.…”

“…In addition to that, they adsorb to the mineral and organic particles of suspended matter and precipitate to the bottom (Abdullah et al 1982, Barker 1984, Delbeke et al 1990, Barker et al 1991. The presence of polychlorinated hydrocarbons in water, even at low concentrations, adversely affects the development of many aquatic organisms and may lead to unfavourable qualitative changes in their specific composition (Glooschenko and Glooschenko 1975, Södergren and Gelin 1983, ¸ukowski and Ligowski 1988, Bystrzejewska et al 1989, Everartes et al 1990). Polychlorinated hydrocarbons are characterised by their high toxicity for aquatic organisms and their high bioaccumulation coefficient.…”

Dynamics of the PCBs decline in selected organs of carp (Cyprinus carpio L.) during depuration in clean water

“…PCBs are one of the most durable synthetic compounds resistant even to mineral acids and bases. PCBs practically are not soluble in water but solve well in organic solvents, oils, and natural lip ids; do not conduct electricity, have low vapour pressure and high durability in natural en vironment (Fishbein 1972;Sodergren and Gelin 1983). Such physico-chemical properties decided on broad usage of PCBs in many industrial branches since 1929.…”