[Monitoring of the levels of metals in the bottom sediments of rivers in the central area of the Orenburg Region].
Among the pollutants of the biosphere, heavy metals present the greatest hazard since they show a high stability and toxicity and are able to migrate in the water ecosystems and to accumulate in the bottom sediments and hydrocoles, by impairing the stability of hydrobiocenoses. Chemical monitoring of the level of bottom sediments of rivers was made in the Central district of the Orenburg Region. Samples were taken at 11 stations of the Central district of the region and 5 stations in a district of Orenburg. The analysis of the findings indicated that the content of copper, zinc, cadmium, lead, chromium in the bottom sediment samples was not greater than the maximum permissible concentration (MPC) at any station and that of nickel did not exceed MPC by 1.3-2.6 times.
G N
GN
Solovykh
L V
LV
Golinskaia
N V
NV
Shustova
D018876:Environmental Illness / Q000517:prevention & control*; D004784:Environmental Monitoring / Q000379:methods*; D006801:Humans; D008670:Metals / Q000032:analysis*; D045483:Rivers / Q000737:chemistry*; D012426:Russia; D014874:Water Pollutants, Chemical / Q000032:analysis*
D008670:Metals; D014874:Water Pollutants, Chemical