Practical evaluation method for heavy metal pollution of coal mine area soil

Abstract

The invention discloses a practical evaluation method for soil heavy metal pollution in a coal mining area, which is characterized in that the specific steps are as follows: step 1, determining the soil heavy metal background value, soil baseline value and heavy metal element content pollution degree classification; step 2, determining the unit in the soil environment evaluation Factor index and Nemerow comprehensive index; Step 3, determine the potential ecological hazard index in the pollution risk assessment. The present invention solves the problem that the existing evaluation means cannot effectively quantitatively evaluate the characteristics of heavy metal pollution in coal mining area soil, provides an effective way for the evaluation of the environmental quality of heavy metal polluted soil in coal mining area, can describe and evaluate the soil heavy metal pollution status more accurately, and improves the coal mining area. The effectiveness and accuracy of the environmental assessment of heavy metal pollution in the soil of the coal mining area can provide more effective decision support for the prevention and restoration of the heavy metal polluted soil in the coal mining area.

Description

technical field [0001] The invention relates to the technical field of environmental evaluation of heavy metal polluted soil, in particular to a practical evaluation method for soil heavy metal pollution in coal mining areas. Background technique [0002] Soil is an important natural resource of the country, and it is also the material basis for the survival and development of human beings. With the increase of population, the development of mining industry and the reduction of cultivated land area per capita, it is particularly important to rationally utilize, manage and restore soil resources in mining areas. my country's energy structure is dominated by coal, which accounts for about 70% of primary energy consumption, and will not change in recent decades. While coal has made great contributions to my country's economic development, it has also seriously affected the soil environment in mining areas. For example, surface subsidence in coal mining areas; accumulation of ...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a practical evaluation method for soil heavy metal pollution in coal mining areas. This method can solve the problem that existing evaluation methods cannot effectively quantitatively evaluate the characteristics of heavy metal pollution in coal mining area soil, and provide an effective way for the evaluation of the environmental quality of heavy metal contaminated soil in coal mining areas. A more accurate descri

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