【作者】 黄飞； 黄子惠； 吴丹； 刘念； 宋宏；

【Author】 HUANG Fei~1,HUANG ZI-hui~2,SONG Hong~*, WU Dan~1,et al.1.School of Public Health,Sun Yat-Sen University,Guangzhou,Guangdong 510080,China 2.The Chinese University of Hong Kong,Hongkong

【机构】 中山大学公共卫生学院环境卫生教研室； 香港中文大学公共卫生学院；

【摘要】 目的通过监测比较广州亚运期间限行和非限行措施对人群活动区域空气质量的影响,评估人群实际污染物暴露水平方法选取靠近交通主干道且附近有亚运场馆的两个人群活动区域,于亚运期间限行、非限行阶段分别监测一天中不同时段空气中NO₂、PM₁₀和CO浓度,同时收集广州市环保网公布的API数据进行分析。结果监测点A限行期间NO₂平均浓度（0.08 mg/m³）水平低于非限行期间（0.11mg/m3）,且差异有统计学意义（Z=5.023,P<0.05）:限行期间区域空气综合污染指数为1.68,而非限行期间的区域空气综合污染指数为1.77,NO₂的分担率最高。结论研究区域以机动车尾气污染为主,限行期间监测点的空气污染程度有所降低,意味着群体实际暴露浓度的确存在一段时间的下降。更多还原

【Abstract】 Objective To evaluate the practical pollutant exposure by monitor the characteristic and changes of concentration of air pollution in public region during Asian Games in GuangZhou.Methods Concentration of pollutants including NO₂、PM₁₀ and CO, were monitored continuously at vehicle trip limit period / non vehicle trip limit period at different time intervals within one day during Asian Games.At the same time,the date of API published by environmental protection network of GuangZhou,are collected and analyzed. Results The average concentration of NO₂（0.08 mg/m³）in monitoring site A at limit period was less than that at non limit period and difference has statistical significance（p<0.05）,the comprehensive index of atmospheric quality of the area during the limit period is 1.68,while the index during the non limit period is 1.77,the maximum of the sharing rates of the pollutants is NO₂.Conclusion The target area possesses the characteristic of obvious vehicle exhaust.The limit of motor vehicles has contribution to the improvement of air quality during the Asian Games.更多还原