Summer Investigation on Indoor Environment of Residential Buildings in Beijing and Other Four Cities

Abstract

In order to understand the actual conditions of urban residential indoor environment, indoor thermal comfort and indoor air quality in Beijing during the summer season, the investigation of indoor environment was carried out in Beijing, from August 21 to August 25 of 2002. Results of this investigation were compared with the results in other cities, which was already reported.
The questionnaire revealed the life style within residences of summer season, the types of air-conditioners used etc. This field survey showed that the indoor thermal comfort during the mid-day, evening hours and sleeping time in Beijing felt outside the ASHRAE comfort zone and the concentrations of formaldehyde and VOCs were relatively high in some houses.