Analysis of Indoor Air Quality for Residential Buildings in Lhasa, China

Abstract:

Adopting the methods of subjective questionnaire and objective test, the indoor air quality (IAQ) of residential buildings in Lhasa were analyzed in summer and winter, and the results were compared with that in Chongqing. Firstly, the data shows that the overall IAQ in Lhasa is better. Excepted total volatile organic compounds (TVOC), the concentration of formaldehyde, carbon dioxide (CO₂), PM2.5 are low. Secondly, more than 80% residents accepted the IAQ in Lhasa, which means the satisfaction rate is high. Thirdly, the IAQ in Lhasa is better than that in Chongqing, such that the exceed-standard rate of formaldehyde is only 2.5% in Lhasa, while 85.7% in Chongqing, and residents’ satisfaction rate in Lhasa is higher. Meanwhile, there are some difference about IAQ in different seasons. The overall concentration of indoor pollutants in summer is lower than that in winter, and residents satisfaction rate on the summer IAQ is higher than winter in Lhasa. Finally, the main effect factors on IAQ were analyzed, and some suggestions to improve the IAQ of residential buildings were provided.

• Periodical: Applied Mechanics and Materials (Volumes 587-589)
• Pages: 453-460
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.587-589.453
• Online since: July 2014
• Authors: Ming Zhang, Wei Yu, Fan Zhi Zeng, Chen Qiu Du, Xiao Fei Wang
• Keywords: CO2, Formaldehyde, IAQ, Lhasa, Residential Building, TVOC

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