Estimation of particulate matter from visibility in Bangkok, Thailand
2001
Lack of daily data on airborne particles has been a common problem in an air pollution research. To deal with this problem, a regression model was developed to estimate daily PM10 concentration using visibility in Bangkok from 1992 to 1997, based on 1092 visibility/PM10 pair-observations on low humidity days (humidity≤76.5%). Visibility was significantly and inversely associated with PM10 (r=0.71), after adjusting for minimum temperature and winter indicator variable. The R2 of the model was 0.51.
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