Geoelectrical surveys of the Nanjido waste landfill in Seoul, Korea

摘要: Electrical surveys have routinely been taken to map and monitor groundwater contamination. In 1994–1996, various electrical were applied investigate contaminant distributions in the ground at Nanjido landfill. The geophysical survey data compared with other available information, particularly boring data. Interpretations of show low resistivity zones below 10 ohm-m which appear be fully saturated leachate. Annual variations anomalies clearly indicate that resistivities thicknesses layers contaminated by leachate become lower thicker around landfill during one year. particular, mean thickness increased about 3–6 m/year bedrock decreased. It seems obvious contamination is progress. area northeast landfill, no evidence indicated. Soundings made year intervals this do not any further From these results, it appears weathered zone progress mainly southwest