Investigation of Indoor Air Radon Concentration in Colleges in Guangzhou
- VernacularTitle:广州地区教学环境空气中氡浓度调查
- Author:
Yuanping ZHANG
;
Zhanyang CAI
;
Huiyi HUANG
- Publication Type:Journal Article
- Keywords:
Air pollution, indoor;
Radon;
Schools
- From:
Journal of Environment and Health
2007;0(10):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate and analyze the recent condition of the indoor air radon concentration in the colleges in Guangzhou and to find the source of radon in the teaching environments and to make the effective measure to reduce indoor air radon pollution. Methods The radon concentration was determined with the instantaneous and accumulate methods. The effecting factors were analyzed. Results The arithmetic average of radon concentration was about (34.2?21.17) Bq/m3. The indoor radon concentration in the newly decorated buildings was about (36.6?25.5) Bq/m3 which was higher than that in the old ones (20.1?8.48) Bq/m3. The indoor radon concentration in the night was higher than that in the daytime. In winter it was about (54.2?15.11)Bq/m3 which was higher than that (17.3?7.31) Bq/m3 in summer. Conclusion The radon concentration may change as the outside condition changes, the radon concentration in the teaching environment in Guangzhou is not over the standard limit.
