춘천시 미세먼지 농도의 장기변동 추세

초록

Fine particles (PM2.5) were collected and analyzed from December 2005 through December 2009 in Chuncheon,Korea to investigate the long-term trend of PM2.5 concentrations. Also PM10 concentrations were collected from Environmental Monitoring System operated by Ministry of Environment. Average concentrations of PM2.5 and PM10were 30.5 and 58.2 μg/m3, respectively. Both PM2.5 and PM10 were significantly affected by meteorological factors including wind speed, wind direction and precipitation. They generally decreased as wind speed increased (p=0.000),and increased when there was a prevailing westerly wind. Low concentrations of PM2.5 were observed during rainy days while high concentrations were shown when fog, mist and/or haze occurred.

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