Geochemical transformation of soil in the influence zone of ash dump in 2006–2020

The test sites are laid at the test object with regard to the environment pollutant concentration. Soil sampling and analyses are implemented since 2006. The present-day classifications describe soil in the influence zone of an ash dump as automorphous, and agrocoenosis soil is either residual carbon-bearing soil or black soil. Soil transformation is caused by pollution with dusty from the ash dump. Organic layers grew in thickness as a result. The increase in the thickness of the organic layers (dead soil cover and bedding material) is a sing of morphological transformation of soil under the impact of dust pollution (nearby the ash dump, organic layers have thickness 3 times as much as the background value). The strongest pollution of the upper soil layers is recorded in the first and second test sites, while dusting of the third test site is the least. The fourth and fifth test sites have no signs of dust from the ash dump. The total environmental pollution of the test sites in the last ten years is estimated as permissible. The use of the multi-factor methods of mathematical statistics revealed a few groups (clusters) of inter-related parameters and identified one to two most significant factors which have influence on distribution of indexes per test sites. From the geochemical research findings, the ash dump exerts zero adverse effect on local soil beyond the limits of the sanitary protection area.

Elokhin V. A. Geochemical transformation of soil in the influence zone of ash dump in 2006–2020. MIAB. Mining Inf. Anal. Bull. 2021;(11-1):98—110. [In Russ]. DOI: 10.25018/0236_ 1493_2021_111_0_98.

Elokhin V. A., Dr. Sci. (Geol. Mineral.), Senior Researcher, Head of the Mining Practice Department, e-mail: elokhin.v.a@mail.ru, Ural State Mining University, Yekaterinburg, Russia.

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