Long-term Trend of Atmospheric Concentrations of Fine Particles in Chuncheon, Korea

Fine particles () were collected and analyzed from December 2005 through December 2009 in Chuncheon, Korea to investigate the long-term trend of concentrations. Also concentrations were collected from Environmental Monitoring System operated by Ministry of Environment. Average concentrations of and were 30.5 and 58.2 , respectively. Both and were significantly affected by meteorological factors including wind speed, wind direction and precipitation. They generally decreased as wind speed increased (p