Analysis of heterogeneity in chromium and nickel spatial distribution by soil ecological screening in residential zones of Novy Urengoy municipality
The paper presents the results of soil ecological screening of residential zones in Novy Urengoy municipality related to the distribution of total chromium and nickel concentrations. An ordinary sample included 306 soil specimens collected in the southern and northern parts of Novy Urengoy as well as in Limbyayakha and Korotchayevo settlements. Additionally 34 soil specimens were sampled in a remote background area. Abnormally high concentrations of total chromium (an order above the background value) and nickel (twice above the background value) were detected in the soil. It is shown that the origin of spots with abnormally high concentrations of total chromium is not associated with the industrial activity and cannot be explained by atmospheric fallouts.