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KMID : 1156220180440020143
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Journal of Environmental Health Sciences
2018 Volume.44 No. 2 p.143 ~ p.152
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Time-activity Pattern Assessment for Korean Students
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Ryu Hyeon-Su
Yoon Hyo-Jung
Eom Ig-Chun
Park Jin-Hyeon
Kim Sun-Shin
Cho Man-Su
Yang Won-Ho
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Abstract
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Objectives: The purpose of this study was to provide basic data for air pollutant exposure modelling and understanding the contribution of respective microenvironments by assessing the time-activity patterns of Korean students according to variables such as grade, sex, weekday, and weekend.
Methods: In this study, we compared the residential time of 521 (both weekday and weekend) lower elementary students, 1,735 (1,054 on weekdays, 681 on weekends) upper elementary students, 2,210 (1,294 on weekdays, 916 on weekends) middle school students, and 2,366 (1,387 on weekdays, 979 on weekends) high school students in different microenvironments according to grade, sex, weekday, and weekend. We used data from the 2014 Time-Use Survey by the Korean National Statistical Office for upper elementary students through high school students, and surveyed time-activity patterns of 521 lower elementary students aged 7-9 years. Each microenvironment was divided into indoor, outdoor, and transport. Indoor environments were divided into home, school, and other places. In addition, the results of previous studies were compared to this study.
Results: Weekday time-activity patterns of Korean students indicated that lower elementary students spent 16.02±2.53 hr in the home and 5.37±2.32 hr in school. Upper elementary students spent 14.11±1.79 hr in the home and 6.27±1.37hr in school. Middle school students spent 12.83±2.22 hr in the home and 7.48±1.88 hr in school. High school students spent 10.65±2.86 hr in the home and 10.23±2.86 hr in school on weekdays. High school students spent the least amount of time in the home and the most time in school compared to other grades.
Conclusions: Students spent most of their time indoors, including in the home, school, and other indoors. On weekdays, as the grade increases, home residential times were decreased and school residential times were increased. Differences in time-activity patterns according to sex were not found for either weekdays or weekends. It is estimated that Korean students could be affected by school indoor air quality. High school students could be most affected by school indoor air quality since they spent the most time at school.
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KEYWORD
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Time-activity patterns, student, exposure assessment, time-of-the-day
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