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Contribution of Workplace and House Indoors for Personal Nitrogen Dioxide Exposure in Office Workers According to Season  

Yang, Wonho (Department of Occupational Health, Catholic University of Daegu)
Kim, Dongkeon (Department of Occupational Health, Catholic University of Daegu)
Hong, Gayeon (Department of Occupational Health, Catholic University of Daegu)
Kim, Sunshin (Department of Occupational Health, Catholic University of Daegu)
Ahn, Hogi (Department of Occupational Health, Catholic University of Daegu)
Publication Information
Journal of Korean Society of Occupational and Environmental Hygiene / v.22, no.2, 2012 , pp. 128-133 More about this Journal
Abstract
People are exposed to air pollution from a range of indoor and outdoor sources. Concentration of nitrogen dioxide $(NO_2)$, which is hazardous to health, can be significant in both types of environment. This paper reports on the measurement and analysis of indoor and outdoor $NO_2$ concentrations and their comparison with measured personal exposure in house and workplace indoors with 28 office workers during winter and summer seasons. Time activity patterns were used to determine the effects of these factors on personal exposure. The residential indoor and office indoor times were $12.29{\pm}1.58,$ $7.86{\pm}1.97$ hours in winter and $11.04{\pm}2.18,$ $8.26{\pm}2.04$ hours in summer, respectively. Measured residential indoor, outdoor and office indoor, personal exposure $NO_2$ concentrations were $23.10{\pm}8.46$ ppb, $23.97{\pm}6.86$ ppb, $21.91{\pm}11.50$ ppb, $22.08{\pm}8.64$ ppb in winter, and $19.94{\pm}6.04$ ppb, $21.21{\pm}6.84{\pm}$ ppb, $22.55{\pm}9.54$ ppb, $27.45{\pm}8.96$ ppb in summer, respectively. Contributions of residential and office indoor $NO_2$ concentration on personal exposure were estimated by 57.98%, 35.62% in winter and 37.38%, 28.97% in summer, respectively.
Keywords
Office workers; Personal exposure; Nitrogen dioxide; Contribution;
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Times Cited By KSCI : 1  (Citation Analysis)
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