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논문 기본 정보

자료유형
학술저널
저자정보
저널정보
한국환경과학회 한국환경과학회지 한국환경과학회지 제27권 제4호
발행연도
2018.4
수록면
241 - 250 (10page)

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초록· 키워드

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The objective of this study was to estimate air quality trends in the study area by surveying monthly and seasonal concentration trends. To do this, the mass concentration of PM<sub>10</sub> samples and the metals, ions, and total carbon in the PM<sub>10</sub> were analyzed. The mean concentration of PM<sub>10</sub> was 33.9 ㎍/㎥. The composition of PM<sub>10</sub> was 39.2% ionic species, 5.1% metallic species, and 26.6% carbonic species (EC and OC). Ionic species, especially sulfate, ammonium, and nitrate, were the most abundant in the PM<sub>10</sub> and had a high correlation coefficient with PM<sub>10</sub>. Seasonal variation of PM<sub>10</sub> showed a similar pattern to those of ionic and metallic species. with high concentration during the winter and spring seasons. PM<sub>10</sub> showed high correlation with the ionic species NO<sub>3</sub><sup>-</sup> and NH<sub>4</sub><sup>+</sup>. In addition, NH<sub>4</sub><sup>+</sup> was highly correlated with SO<sub>4</sub><sup>2-</sup> and NO<sub>3</sub><sup>-</sup>. We obtained four factors through factor analysis and determined the pollution sources using the United States Environmental Protection Agency(U.S. EPA) pollution profile. The first factor accounted for 51.1% of PM<sub>10</sub> from complex sources, that is, soil, motor vehicles, and secondary particles: the second factor indicated marine sources; the third factor, industry-related sources; and the last factor, heating-related sources. However, the pollution profile used in this study may be somewhat different from the actual situation in Korea because it was from US EPA. Therefore, to more accurately estimate the pollutants present, it is necessary to create a pollution profile for Korea.

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