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  

Monitoring of CO and CO_2 in Public Indoor Places With the Common Hygienic Standards

作　　者：冯文如[1] 刘世强[1] 刘汉湘[1] 周明辉[1] 江思力[1] 王伟鸿[1] 陈玉婷[1] 刘查田[1] 

机构地区：[1]广州市疾病预防控制中心,广州广东510080

出　　处：《环境与健康杂志》2005年第3期220-221,共2页Journal of Environment and Health

摘　　要：目的调查广州市公共场所室内CO、CO2浓度,并探讨公共场所室内CO、CO2浓度标准值统一的可行性。方法在广州市选择各类公共场所的822个监测点,将公共场所按《公共场所卫生标准》室内CO标准值分为第1类(≤5mg/m3)、第2类(≤10mg/m3)、第3类(未作强制项目),按CO2标准值分为第Ⅰ类(≤0.07%)、第Ⅱ类(≤0.10%)、第Ⅲ类(≤0.15%),监测室内空气中CO、CO2浓度,并进行分析。结果822个空气样本监测值显示,CO浓度(x±s)为(2.76±1.41)mg/m3,第95百分位数(P95)为6.2mg/m3;CO2浓度(x±s)为0.060%±0.020%,P95为0.099%。CO、CO2监测值呈正偏态分布,即向污染较低的方向聚集;按CO浓度标准分级的3类公共场所空气中CO浓度差异无统计学意义(χ2=3.70,P=0.157);按CO2浓度标准分级的3类场所CO2浓度差异有统计学意义(χ2=35.266,P<0.01);且第Ⅱ类场所CO2的污染比Ⅰ、Ⅲ类严重(P<0.01)。结论公共场所室内空气CO、CO2标准值分类的现实意义已减弱,采用合适的统一标准更具有现实可行性。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 (χ2=3.70, P=0.157), but significant difference had been seen among CO2 (χ2=35.266, P<0.01). The level of the CO2 pollution in Ⅱgroup public places was the heaviest (P<0.01). Conclusion The practical significance of standard value classification is not very important. To use the common hygienic standards will be practicable for assessment of public indoor places air quality.

关 键 词：空气污染 室内 公共设施 卫生标准 一氧化碳 二氧化碳 

分 类 号：R122.2[医药卫生—环境卫生学]