Monitoring of CO and CO_2 in Public Indoor Places With the Common Hygienic Standards
- VernacularTitle:统一公共场所室内空气中CO、CO_2浓度标准值的可行性探讨
- Author:
Wenru FENG
;
Shiqiang LIU
;
Hanxiang LIU
- Publication Type:Journal Article
- Keywords:
Air pollution, indoors;
Public facilities;
Hygienic standard;
Carbon monoxide;
Carbon dioxide
- From:
Journal of Environment and Health
1993;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the pollution status of main indoors air pollution factor, CO and CO2, in Guangzhou City, and to study the feasibility of using same standards in pollution monitoring. Methods 822 sampling points of various public places were monitored. Public places were classified into 1 group (≤5 mg/m3)?2 group(≤10 mg/m3)?3 group(CO level was not require to monitor)by CO level and were classified into Ⅰgroup(≤0.07%)?Ⅱgroup(≤0.10%)?Ⅲgroup(≤0.15%) by CO2 level. The 822 statistics of various public places were analyzed according to the standard value of hygienic Standard for Public Place. Results The results of the monitoring value of CO and CO2 showed as positive bias distribution. Average of CO was (2.76?1.41)mg/m3, the 95% percentile was 6.2 mg/m3; CO2 average value was (0.060?0.020)%, the 95% percentile was 0.099%. There was no significant difference among CO concentrations in 3 public places classified according to the standard (?2=3.70, P=0.157), but significant difference had been seen among CO2 (?2=35.266, P
