ISSN : 1738-4125(Print)
ISSN : 2287-7509(Online)
ISSN : 2287-7509(Online)
CO2, subway, passenger cabin
Estimation of NOs Exposure to University Students for the Risk Assessment
Abstract
Indoor air quality tends to be the dominant contributor to personal exposure, because most people spendover 80% of their time indoors. In this study, indoor and outdoor NO2 concentrations were measuredsimultaneously with personal exposures of 30 university students in weekday and weekend in Daegu, Korea.House characteristics and subject's activity pattern were used to determine the effects on personalexposure. Since university students spent most of their times indoor, their NO2 exposure was associatedwith indoor NO2 level during both weekday and weekend in spite of different time activity. Using atime-weighted average model, NO2 exposures of university students were estimated by NO2 measurementsin indoor home, indoor school, and outdoor home. In conclusion, major personal exposure to NO2 resultedfrom air quality of indoor environment at house.
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