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논문 기본 정보

자료유형
학술저널
저자정보
박태언 (전남대학교) 손세창 (전남대학교) 이권호 (국립강릉원주대학교) 박승식 (전남대학교)
저널정보
한국대기환경학회 한국대기환경학회지(국문) 한국대기환경학회지 제38권 제3호
발행연도
2022.6
수록면
375 - 393 (19page)
DOI
10.5572/KOSAE.2022.38.3.375

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초록· 키워드

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In this study, differences in chemical and light absorption characteristics of PM<SUB>2.5</SUB> between an urban site in Gwangju and a port site in Gangneung during spring were investigated. Results showed that concentration of NO₃<SUP>-</SUP> was significantly high in the urban site where traffic emissions dominated, while OC was observed to be higher in the port site than in the urban site. Relationship between OC and EC concentrations at both sites suggests that carbonaceous particles measured at the urban site were strongly associated with the traffic emissions, on the contrary, they at the port site would have been affected by the traffic emissions as well as other emission sources (e.g., biomass burning). Results of ATR-FTIR (attenuated total reflection-fourier transform infrared) analysis indicated that stronger C=O and v(C=O) peaks appeared at the urban site. The peak of amine (NH₂), which is of marine origin, appeared at the port site only. In addition, presence of gypsum, calcite, and syngenite related to dust particles was observed during Asian dust event at the port site. Higher light absorption at 365 nm (Abs<SUB>365</SUB>) and absorption Ångström exponent (AAE<SUB>330-400</SUB>) values were observed at the port site, implying more amounts of light-absorbing organic aerosols. Measurements of aerosol light absorption using dual-spot aethalometer at the port site indicated that Abs<SUB>370</SUB>(aerosol total light absorption at 370 nm) and Abs<SUB>BrC,370</SUB>(BrC light absorption at 370 nm) were found to be higher during nighttime (21:00~09:00) than during daytime (09:00~21:00), suggesting they were strongly associated with biomass burning emissions, rather than the traffic emissions, or activities of fishing boats. However, increased light absorption in the morning hours (05:00~09:00) was certainly related with shipping activities.

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Abstract
1. 서론
2. 연구 방법
3. 결과 및 고찰
4. 요약 및 결론
References

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