Aerosol Composition at Gosan, Korea: Measurement data of TSP, PM10, and PM2.5 between March 1992 and June 2008
To investigate regional characteristics of aerosol pollution in the area of Changjiang river delta in China, atmospheric aerosol samples were collected with Andersen cascade sampler at Lin’an regional background station during April, July, October of 2008 and January of 2009. The water soluble ionic concentrations were analyzed by IC. Results showed three different size distributions for the ions characterized, including masses in: (i) the accumulation mode, with a peak at 0.43 to 1.1 μm (SO 4 2-, NH4 +, K+); (ii) the coarse particle mode, with a peak at 4.7 to 5.8μm (Ca2+, Mg2+); and (iii) a bimodal distribution, with peaks at 0.43 to 1.1 μm and 4.7 to 5.8 μm (NO3 -, Na+, Cl- ). The measured distributions are believed to result from a combination of processes including regional anthropogenic and natural sources, and long-range transport. The size distributions of the water soluble ions studied were influenced by at least three processes governing their concentrations in fine and coarse particles: (i) primary emissions of ultrafine particles from combustion and industrial processes; (ii) advection of air masses containing aged intermediate size aerosols; (iii) large particles arising mainly from re-suspension.
TSP PM10 PM2.5 ion concentrations EC OC
Na Kyung Kim Yong Pyo Kim Chang-Hee Kang
Dept. of Environmental Science and Engineering,Ewha Womans University,Seoul,120-750,Korea Dept. of Chemistry,Jeju National University,Jeju,690-756,Korea
国际会议
西安
英文
121-124
2011-08-17（万方平台首次上网日期，不代表论文的发表时间）