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KMID : 1171820050200040009
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Journal of Environmental and Sanitary Engineering
2005 Volume.20 No. 4 p.9 ~ p.20
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The Study on Secondary Pollutants of PM10 in Pocheon
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Park Tae-Sool
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Abstract
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The purpose of the study was characteristics of secondary pollutants of PM_(10) collected in pocheon between August 2002 and June 2003.The ambient concentrations of PM_(10) mass, 9 water-soluble anions and cations, and 13 bulk composition trace elements were determined from filter samples collected by PM_(10) high volume air sampler(UV-15H, Graseby-Andersen Co., USA).During this period average PM_(10) mass concentration was 83.8㎍/㎥(49.8㎍/㎥~111.6㎍/㎥) in Pocheon.Mechanism for transformation of secondary pollutants by soluble ion components is divided into two categories; NaNO₃ type by the reaction of sea salt and HNO₃ in the atmosphere, and nitrate salt or phosphate salt type such as (NH₄)₂SO₄, NH₄NaSO₄, and (NH₄)₂SO₄(2NH₄NO₃).
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KEYWORD
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Secondary Pollutants, Sea salt
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