This study was carried out to investigate the heavy metal distributions of soils in the vicinity of Shi-Hwa industrial complex region, where the air pollutants from industrial area could affect the soil environment of near residential and green areas. The ranges of contents of As, Cd, Co, Cr, Cu, Hg, Ni, Pb and Zn in soils were 0.58~3.81, ND~0.91, 0.15~6.33, ND~l.86, 0.14~110.27, ND~l.17, 0.04~10.59, 1.16~86.48 and 1.83~212.65 mg/kg, respectively. For all industrial, residential and green areas, the heavy metal contents were much lower than the standard of Korean Soil Environmental Preservation Act or the critical concentration which phytotoxicity is considered to be possible. Mean values of contents of As were similar in industrial, residential and green areas. However, the mean values of contents of Cd and Cr in industrial area were higher 10 and 5 times than those in residential and green area, respectively. And also the mean values of contents of Co, Cu, Hg, Ni, Pb and Zn in industrial area were higher 2~3 times than those in residential and green area.

본 연구는 산업시설에서 배출되는 대기오염물질이 인접한 주거지역에 영향을 미칠 것으로 예상되는 시화공업단지 주변의 공단지역, 주거지역 및 녹지지역의 토양을 대상으로 As, Cd, Co, Cr, Cu, Hg, Ni, Pb 및 Zn 함량을 조사하였다. 토양 중 중금속 함량의 범위는 As 0.58~3.81, Cd ND~0.91, Co 0.15~6.33, Cr ND~1.86, Cu 0.14~110.27, Hg ND~l.17, Ni 0.04~10.59, Pb 1.16~86.48 및 Zn 1.83~212.65 mg/kg으로서 전 지역에서 토양환경보전법의 토양오염기준이나 식물독성 유발기준에 비하여 매우 낮은 값을 나타내었다. As 함량은 전 지역에 걸쳐 비슷하였으나, Cd와 Cr 함량은 공단지역이 주거지역이나 녹지지역보다 각각 약 10배 및 5배정도 높았으며, 주거지역과 녹지지역은 비슷한 경향이었다. Co, Cu, Hg, Ni, Pb 및 Zn 함량은 공단지역이 주거지역이나 녹지지역보다 약 2~3배정도 높았으며, 주거지역과 녹지지역은 비슷한 경향이었다.

Keywords: heavy metals;industrial region;shi-hwa industrial complex;soil;

Keywords: 중금속;공업단지;시화지구;토양;