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http://dx.doi.org/10.5322/JES.2002.11.3.247

Exposure Assessment and Estimation of Nitrogen Dioxide on Office Worker Using Passive Monitor -Comparative Study of Seoul in Korea and Brisbane in Australia-  

양원호 (서울대학교 보건대학원 환경보건학과)
손부순 (순천향대학교 환경보건학과)
김종오 (동남보건대학 환경위생과)
Publication Information
Journal of Environmental Science International / v.11, no.3, 2002 , pp. 247-255 More about this Journal
Abstract
Indoor and outdoor nitrogen dioxide (NO$_2$) concentrations were measured and compared with measurements of personal exposures of 95 persons in Seoul, Korea and 57 persons in Brisbane, Australia, respectively. Time activity diary was used to determine the impact on NO$_2$ exposure assessment and microenvironmental model to estimate the personal NO$_2$ exposure. Most people both Seoul and Brisbane spent their times more than 90% of indoor and more than 50% in home, respectively. Personal NO$_2$ exposures were significantly associated with indoor NO$_2$ levels with Pearson coefficient of 0.70 (p＜0.01) and outdoor NO$_2$ levels with Pearson coefficient of 0.66 (p＜0.01) in Seoul and of 0.51 (p＜0.01) and of 0.33 (p＜0.05) in Brisbane, respectively. Using microenvironmental model by time weighted average model, personal NO$_2$ exposures were estimated with NO$_2$ measurements in indoor home, indoor office and outdoor home. Estimated NO$_2$ measurements were significantly correlated with measured personal exposures (r = 0.69, p＜0.001) in Seoul and in Brisbane (r = 0.66, p＜0.001), respectively. Difference between measured and estimated NO$_2$ exposures by multiple regression analysis was explained that NO$_2$ levels in near workplace and other outdoors in Seoul (p = 0.023), and in transportation in Brisbane (p = 0.019) affected the personal NO$_2$ exposures.
Keywords
Passive monitor; Exposure; Nitrosen dioxide; Monte-Carlo simulation;
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