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KMID : 1156220170430020157
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Journal of Environmental Health Sciences
2017 Volume.43 No. 2 p.157 ~ p.166
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Affecting Factors of Personal Exposure to Toluene according to Sociodemographic Characterization and Time-activity Pattern
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Jung Soon-Won
Lee Seok-Yong
Kim Hyun-Jeong
Choi Wook-Hee
Kim Sue-Jin
Yu Seung-Do
Yang Won-Ho
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Abstract
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Objectives: Exposure to hazardous air pollutants could be affected by sociodemographic factors such as age, gender and more. Information on time spent in microenvironments has a critical role in exposure assessment. The purpose of this study was to analyze the exposure pathways which influence personal exposure through timeactivity patterns and sociodemographic factors.
Methods: A total of 379 subjects were collected from the second term of the Korean National Environmental Health Survey. A questionnaire survey in relation to sociodemographic factors and a time-activity diary were carried out for personal exposure to toluene. Focusing on personal exposure to toluene, factors affecting personal exposure were analyzed using multiple regression analysis.
Results: Participants spent their time in an indoor house for 16.8±4.0 hr, workplace or school 2.3±3.5 hr, and other indoor 2.1±2.2 hr. Sociodemographic factors were significantly different among each personal exposure and microenvironment. Time of staying at an office turned out to be a main factor from point of exposure in exposure pathway using multiple regression analysis. As a result, this means that exposure may be different according to the time of staying in each microenvironment.
Conclusions: Personal exposure to air pollutants might be decided by time-activity pattern indicating when, where, and which activities people pursue, as well as individual sociodemographic factors.
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KEYWORD
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Toluene, sociodemographics, time activity pattern, exposure assessment, exposure pathway
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