The fate of Cu, Zn, and Cd in the initial stage of water system contamination: the effect of phytoplankton activity.
The fate of Cu, Zn and Cd after their entry into an unpolluted fresh water body was studied as a function of a condition of a natural phytoplankton community. In a field experiment, additives of metals entered into light and dark mesocosms twice to simulate effects of primary and repeated contamination. Over 31 days, the reproduction of new generation of a phytoplankton as renewable source of the suspended particles capable to metal biosorption was higher in a light mesocosm. As a result the residual concentration of metals in water decreased faster and their content in the settled deposits was higher in a light mesocosm, than in a dark mesocosm. Efficiency of planktonic channel in deducing of metals from water with settling deposits (in the order of Cu>Zn>Cd) depends on intensity of a phytoplankton reproduction in the initial stage of water ecosystem contamination.
Smolyakov
B S
BS
Nikolaev Institute of Inorganic Chemistry, SB of the RAS, 3, Acad. Lavrentiev Ave., 630090 Novosibirsk, Russia; Department of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia. Electronic address: ecol@niic.nsc.ru.
Ryzhikh
A P
AP
Nikolaev Institute of Inorganic Chemistry, SB of the RAS, 3, Acad. Lavrentiev Ave., 630090 Novosibirsk, Russia. Electronic address: ryzhikh@niic.nsc.ru.
Romanov
R E
RE
Department of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia; Central Siberian Botanical Garden, SB of the RAS, 630090 Novosibirsk, Russia.
D002104:Cadmium / Q000378:metabolism*; D003300:Copper / Q000378:metabolism*; D008962:Models, Theoretical; D010839:Phytoplankton / Q000378:metabolism*; D014874:Water Pollutants, Chemical / Q000378:metabolism*; D015032:Zinc / Q000378:metabolism*
D014874:Water Pollutants, Chemical; D002104:Cadmium; D003300:Copper; D015032:Zinc