대구시 산단지역 대기 중 SPM과 유해중금속성분의 농도
Concentrations of SPM and Ambient Hazardous Heavy Metals in an Industrial Complex Area in Daegu City
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초록
Objectives: This study evaluated the regional and seasonal concentrations of ambient hazardous heavy metalsin an industrial complex area in Daegu City. Methods: A total of 64 SPM (Suspended Particulate Matter) samples were collected in non-industrial andindustrial areas during 2014 and were analyzed for hazardous heavy metals elements (As, Cd, Mn, Ni, Pb) withICP after acid extraction. Results: SPM and hazardous heavy metals concentrations showed regional (industrial complex area>nonindustrialcomplex area) and seasonal (spring, winter>fall, summer) variations. All of the hazardous heavy metalswere influenced by anthropogenic sources. The pollution index of hazardous heavy metals was very low,showing roughly one-quarter of the level of the air quality guidelines of WHO. The correlation analysis amongSPM and hazardous heavy metals indicated that components of non-industrial complex areas were more relatedto each other than those of industrial complex areas, and the correlation in the winter was higher than in otherseasons. Conclusion: It is necessary to control air pollution sources and establish related policy because hazardous heavymetals from industrial areas can influence residential areas.
Abstract
Objectives: This study evaluated the regional and seasonal concentrations of ambient hazardous heavy metalsin an industrial complex area in Daegu City. Methods: A total of 64 SPM (Suspended Particulate Matter) samples were collected in non-industrial andindustrial areas during 2014 and were analyzed for hazardous heavy metals elements (As, Cd, Mn, Ni, Pb) withICP after acid extraction. Results: SPM and hazardous heavy metals concentrations showed regional (industrial complex area>nonindustrialcomplex area) and seasonal (spring, winter>fall, summer) variations. All of the hazardous heavy metalswere influenced by anthropogenic sources. The pollution index of hazardous heavy metals was very low,showing roughly one-quarter of the level of the air quality guidelines of WHO. The correlation analysis amongSPM and hazardous heavy metals indicated that components of non-industrial complex areas were more relatedto each other than those of industrial complex areas, and the correlation in the winter was higher than in otherseasons. Conclusion: It is necessary to control air pollution sources and establish related policy because hazardous heavymetals from industrial areas can influence residential areas.
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