Abstract
The groundwater and soil of Nanjing 1211 Chemical Plant were investigated by the method of high-density resistivity after the plant closure. The results show that there are high resistance anomaly areas of aquifer and soil between 17 and 45 meters where the resistivity is higher than 100 ohm-m. Chemical analyses show that the high resistance anomaly areas are caused by DNAPLs pollution. The spatial distribution of underground pollutants was delineated and the origin of the contaminants was confirmed. The research shows that high-density resistivity method is effective in locating heavy organic pollution of groundwater and soil of chemical plants. The method is both economical and convenient to detect organic pollution and is recommended for such usage.
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