Investigation and analysis on indoor environment of urban residential buildings in chongqing

摘要

It is purposed to look into the actual conditions of the residential indoor environment in Chongqing during the autumn. Based on buildings'age and placement, twenty typically households were chosen and field measure was conducted in November 2005, these data were collected in living- room, kitchen, bedroom, toilet, etc. Finally, the characters of the indoor environment were obtained. Investigation revealed that,in this period,residential indoor thermal comfort level is better, but the sound environment is poor, with 42.68% of households dissatisfied with the noise. The indoor air is most polluted by formaldehyde seriously; and in the season outdoor concentration of certain pollutants (such as formaldehyde, etc. ) are higher than indoor generally,therefore it is believed that residents shoutd be strengthened ventilation to improve indoor air quality after that the outdoor air should be handled.