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Authors:
Liu Yingxia, Wu Lubin, Dong Hanjiang, Liang Yuqiao, Zhang Yuanbiao, China
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Abstract:
This study selected eight heavy metal elements in the surface layer as the research object. The mathematical points and single factor-Nemerow index comprehensive index method are used to classify the sampling points and their pollutant concentrations into the corresponding functional areas to obtain the living area. The average score of the Nemerow index in five areas, such as industrial area, mountainous area, main road area and park green area. At the same time, combined with the geological accumulation index method, the comprehensive pollution index scores of different functional areas are calculated and the first method is carried out. Comparing and sorting according to the degree of pollution, the two methods obtain the same sorting, that is, the degree of pollution from more serious to slighter is industrial area > trunk road area > living area > park green area > mountainous area. With the help of relevant literature and previous data processing results, the analysis of the heavy metal pollution in the city is carried out, and the conclusions of the corresponding heavy metal pollution are obtained: Industrial production in industrial areas, domestic waste of residents in living quarters, loss during transportation in trunk road areas; at the same time, considering that due to differences in altitude, pollutants will accumulate in the southwest. This research model provides an effective reference for the analysis of heavy metal pollution in the surface soil of urban areas in the future.
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