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KMID : 1024520090180020215
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Journal of the Environmental Sciences
2009 Volume.18 No. 2 p.215 ~ p.219
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A Study on the Micropollutants and Removal of Micropollutants Contained in Road Runoff
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Kim Boo-Gil
Park Heung-Jai
Jang Seong-Ho
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Abstract
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Micropollutants, which can be caused by imperfect combustion, are toxic chemical compound that flows into the river system after being contained in road runoff, a non-point source pollutant and accumulates in the body. The micropollutants that have characteristics such as toxicity, persistence, bio-accumulation, long-range transportation behave so similarly to micro particles that they can be removed by means of filtration or absorption. This study has examined the kinds and concentrations of micropollutants contained in deposited road particles. It has revealed that the kinds of micropollutants contained in the clarified supernatant liquid of deposited road particles are heavy metals and polycyclic aromatic hydrocarbons(PAHs) composed of two or three benzene rings, including naphthalene and acenaphthalene. Their concentrations have been shown to be low, with 0.418 mg/L, 0.058 mg/L, 0.104 mg/L, 0.014 mg/L, 0.00075 mg/L for Zn, Pb, Cu, Cr, Cd, respectively and 0.00156 mg/L and 0.00184 mg/L for naphthalene and acenaphthalene.
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KEYWORD
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Micropollutants, Non-point source pollutants, Road runoff, Heavy metal, PAHs
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