Estimation of particulate matter from visibility in Bangkok, Thailand.
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 < or = 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.
Vajanapoom
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Department of Health Science, Faculty of Science and Technology, Thammasat University, Pathumthani, Thailand. navajanap@tu.ac.th
Shy
C M
CM
Neas
L M
LM
Loomis
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D000392:Air Movements; D000397:Air Pollution / Q000032:analysis* / Q000706:statistics & numerical data; D004784:Environmental Monitoring / Q000379:methods / Q000706:statistics & numerical data*; D005544:Forecasting; D008962:Models, Theoretical; D010316:Particle Size; D012044:Regression Analysis; D012621:Seasons; D013696:Temperature