Indoor air pollution levels in public buildings in Thailand and exposure assessment.

Environmental Monitoring and Assessment
Aungsiri KlinmaleeNguyen Thi Kim Oanh

Abstract

Levels of pollutants including PM2.5 and PM2.5 composition (black carbon and water soluble ions), SO(2), NO(2), CO, CO(2), and BTEX (benzene, toluene, ethylbenzene, xylene) were monitored for indoor and outdoor air at a university campus and a shopping center, both located in the Northern suburb of Bangkok. Sampling was done during December 2005-February 2006 on both weekdays and weekends. At the university, indoor monitoring was done in two different air conditioned classrooms which shows the I/O ratios for all pollutants to be below 0.5-0.8 during the weekends. However, on weekdays the ratios for CO(2) and most detected BTEX were above 1.0. The concept of classroom occupancy was defined using a function of the student number in a lecture hour and the number of lecture hours per day. Classroom 2, which had a higher occupancy than classroom 1, was characterized by higher concentrations of most pollutants. PM2.5 was an exception and was higher in classroom 1 (37 microg/m(3), weekdays) as compared to classroom 2 (26 microg/m(3), weekdays) which was likely linked to the dust resuspension from the carpeted floor in the former. Monitoring was also done in the shopping mall at three different sites. Indoor pollutants levels and the I...Continue Reading

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Citations

Dec 25, 2010·Environmental Monitoring and Assessment·Mohd Talib LatifMazlin B Mokhtar
Nov 6, 2012·Environmental Geochemistry and Health·G L CarneiroMoore K Dias da Cunha
Nov 3, 2010·Environmental Geochemistry and Health·P N PegasM C Freitas
May 6, 2016·Environmental Monitoring and Assessment·Yaqun ZhangYawei Zhang
May 11, 2016·Journal of Toxicology and Environmental Health. Part B, Critical Reviews·Inês PaciênciaEduardo de Oliveira Fernandes
Oct 9, 2016·Environmental Monitoring and Assessment·Eduardo Monteiro MartinsSergio Machado Corrêa
Jan 7, 2021·International Journal of Environmental Research and Public Health·Soo Ran WonYoung Sung Ghim

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