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KMID : 1024520170260040535
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Journal of the Environmental Sciences
2017 Volume.26 No. 4 p.535 ~ p.542
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A Correlation Analysis between Visibility and PM10 in Jinju
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Kim Hyoung-Kab
Suh Jeong-Min
Park Jeong-Ho
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Abstract
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This study was conducted to investigate how PM10 concentration and Relative Humidity (RH) affected visibility in Jinju, Korea. A 9-yr dataset of 1 h averages for visibility, PM10, and RH data was analyzed to examine the correlation between these variables. On average, visibility decreased by 1.4 km for every 10 μg/㎥ increase in PM10 and by 2.1 km for every 10% increase in RH. In general, a negative correlation was observed between visibility and and PM10 concentration. However, under conditions of low PM10 concentration(< 15 μg/㎥) and visibility(< 2 km), there was a positive correlation between these two variables. In this case, RH levels were high (> 75%). A high correlation analysis between two variables need to be under control conditions with RH < 75%, PM10 15~100 μg/㎥, and visibility > 2 km.
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KEYWORD
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Visibility, PM10 concentration, Relative humidity, Jinju city
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