[Primary research on indoor air concentration of particulate matter in residential house and its relationship with ambient pollution level].
OBJECTIVE
To investigate the indoor air concentration of particulate matter in residential house and its relationship with ambient pollution level.


METHODS
Indoor and outdoor air level of PM2.5 and PM10 were monitored in 10 residential houses in downtown area.


RESULTS
In the non-heating period, the indoor air level of PM2.5 and PM10 were 27.0 - 272.9 microg/m3 and 42.9 - 309.6 microg/m3, respectively. In the heating period, PM2.5 and PM10 were 20.7 - 251.4 microg/m3 and 34.0 - 283.9 microg/m3, respectively. There were good correlation between the indoor air concentrations of PM2.5 and PM10. The relationships between the indoor and outdoor air concentrations of PM2.5 and PM10, however, were not clear.


CONCLUSIONS
Our results showed that there were serious indoor air pollution of particulate matter in residential house. Further research will be needed to clarify the characteristics of indoor air particulate matter pollution and its influence on resident.
Zhang
Yong
Y
Beijing Center for Disease Prevention and Control, Beijing 100013, China.
Li
Xin-Yi
XY
Jiang
Li-Juan
LJ
Wei
Jian-Rong
JR
Sheng
Xin
X
Liu
Yumin
Y
Guo
Xinbiao
X
D000393:Air Pollutants / Q000032:analysis*; D016902:Air Pollution, Indoor / Q000032:analysis*; D002681:China; D004781:Environmental Exposure / Q000032:analysis*; D004784:Environmental Monitoring; D006798:Housing; D010316:Particle Size; D052638:Particulate Matter / Q000032:analysis*
D000393:Air Pollutants; D052638:Particulate Matter