Issues:
Sections:
Issue 94
GENERAL BIOLOGY
UDK: 504.064
DISTRIBUTION OF MOBILE FORMS OF HEAVY METALS IN OIL-CONTAMINATED ALLUVIAL SOILS OF THE MIDDLE TAIGA SUBZONE OF WESTERN SIBERIA
NOSOVA Maria V.,
SEREDINA Valentina P.,
STOVBUNIK Sergey A.
The article considers influence of crude oil on the parameters of lightness and color saturation measured on the Munsell scale. Oil-contaminated soils (chemozems) are characterized by low color horizons; achromatic colors (gray, black) predominate in color, and the brightness parameter decreases. A change in color tones from 7.5YR-5YR to Gley 1-Gley 2 is recorded. Excessive concentrations and distribution of mobile forms of heavy metals-technolophiles (Pb, Zn, Cu, Ni, V, Mn) in the root horizons of oil-contaminated alluvial soils of Western Siberia are shown. The content of mobile forms of heavy metals has been established in various zones of technogenic load (epicenter, peripheral zone, boundary of oil pollution), as well as in uncontaminated soils (background and conditional background). Revealed have been patterns of distribution of pollutants while distancing from the source of pollution. Statically significant relationships have been discovered between the content of mobile forms of heavy metals in soils, the content of petroleum products, Corg and pHwater. The study shows that the share of heavy metals in terms of the multiple excess of MPC according to Sanitary Rules and Norms 1.2.3685-21 and background values in oil-contaminated soils decreases in the following order: V > Mn > Ni > Cu > Pb > Zn.
Pages: 45 - 51
Date: 15.11.2024