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스모그 챔버에서 수분 반응에 의한 대기 에어로졸의 생성 및 성장
김민철,배귀남,문길주,박주연 한국대기환경학회 2004 한국대기환경학회지 Vol.20 No.2
Aerosol formation and growth by water vapor reactions were investigated in a 2.5-㎥ indoor smog chamber filled with the unfiltered ambient air. The relative humidity of test ambient air was elevated at 59~64% or 84~88% by adding water vapor. The aerosol number size distribution and the concentrations of O₃, NO, NO₂, and SO₂ were measured during the experiments. The O₃, and NO₂ gases were well reacted with the water vapor at high relative humidity of 84~88%, and the reaction rates of these gases seemed to be decreased at low relative humidity of 59~64%. The formation and condensational growth phenomena of ambient aerosols by water vapor reactions were observed in a Teflon bag, depending strongly on the initial particle size distribution. The water vapor reactions might be affected by the contents of oxidants produced by photochemical reactions under sunlight.