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PM10 and PM2.5 Characterization based on Mass Concentration Long-term (1989 ~ 2012) Database in Yongin-Suwon Area

장기간 (1989 ~ 2012) 측정자료를 이용한 용인-수원지역에서의 PM10 및 PM2.5의 오염특성 분석 (질량농도 중심)

  • Received : 2014.11.17
  • Accepted : 2015.04.29
  • Published : 2015.06.30

Abstract

Fine and coarse PM had been collected by LVCI (low volume cascade impactor) and HVAS (high volume air sampler) during January 1989 to April 2012 at Kyung Hee University, Global Campus located on the boarder of Yongin and Suwon. The database of PM mass concentration was constructed and then intensively and extensively investigated to understand monthly, seasonal, and annual patterns of each PM behavior. Especially the study separated all the PM data into the 5 Period Zones, which were classified on the basis of social, political, and environmental issues that might be influencing local ambient air quality during the monitoring period. The overall $PM_{10}$ level had been continuously decreased until 2005 and after then was staggering due to rapidly increasing $PM_{2.5}$ level in $PM_{10}$. The annual average of $PM_{2.5}$ concentration varied from $34.3{\mu}g/m^3$ to $59.0{\mu}g/m^3$, which were much higher than the 2015 ambient air quality standard. The $PM_{2.5}$ level was strongly associated with haze events, while both $PM_{10}$ and $PM_{2.5}$ levels were associated with Yellow storm events. Daily concentrations of $PM_{2.5}$ were ranged $13.1{\sim}212.9{\mu}g/m^3$ in haze days and $33.6{\sim}124.6{\mu}g/m^3$ in Asian dust days. The study also intensively investigated annual and seasonal patterns of $PM_{2.5}/PM_{10}$ ratios.

Keywords

$PM_{2.5}$;$PM_{10}$;$PM_{2.5}/PM_{10}$ ratio;Long-term Air Monitoring;Haze;Asian dust;Ambient air quality

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