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안성지역 대기중 미세입자에 포함된 음이온의 농도분포 특성
천만영,김태욱 안성산업대학교 1996 論文集 Vol.28 No.-
NO_3 and SO^2-_4 concentrations and distributions of airborne fine particles less than 2㎛ in Ansung atmosphere were determined from November 21 to December 2, 1996. The sampling was carried out using 8-stage Hering's low pressure impactor (LPI, aerodynamic cutoff diameters are 0.05, 0.075, 0.11, 0.26, 0.05, 1,0, 2,0 and 40㎛) at the top of a four storied building located at Ansung national university in Ansung. The average concentrations of NO_3 and SO^2-_4 were 9.0, and 84(㎍/㎥) respectively. The distributions of NO_3 concentrations were bimodal types which showed two peaks in the range of 0.075~0.12㎛ and 0.5~1.0㎛ in aerodynamic diameter. And the distributions of SO^-2_4 concentrations were bimodal types which showed two peaks in the range of 0.12~0.26㎛ and 0.5~1.0㎛.