摘要
广州市交通干线等48个大气采样点,每个点4～11个项目,冬夏二季监测.9个交通岗点监测结果,NO_x、CO、TSP 年均值及冬季的 BaP 超过国家二级标准;负荷率 NO_x 在29.1%～41.7%、CO 在20.4%～26.6%、TSP 在22.0%～30.2%、Pb 在5.5%～8.9%之间;分担率 NO_x 在58.6%～87.5%、CO 在53.1%～76.3%之间;污染区人民中路小学 NO_x、CO、TSP、SO_24项目日均值超过国家大气二级标准;负荷率 NO_x56.5%、CO19.1%、TSP22.5%、Pb8.2%.表明广州市老城区汽车尾气污染严重,同时也说明本研究所确定的调查区(点)是以汽车尾气污染为主要类型.
We choose 48 atmosphere sampling points in main lines of communication in Guangzhou with 4-11 items at each points,and test in winter and summer.The testing results at 9 communication posts indicate that the yearly average value of NO_x,CO,TSP and value of Bap in winter have exceeded the National Class 2 Standard;load rate of NO_x:29.1%～41.7%,CO:20.4%～26.6%,TSP:22%～30.2%, Pb:5.5%～8.9%;and share ration of NO_x:58.6%～87.5%,CO:53.1%～76.3%. The daily average concentrates of NO_x,CO,TSP and SO_2 at Renming Road Primary School in polluted district all exceed the National Class 2 Standard;the load rate 26.5%,CO:19.1%,TSP:22.5% and Pb:8.2%.These results illustrate that the of NO_x:old city district is seriously polluted by automobile tail gases and in the spe(?)fied investigating area the automobile tail gases are the main pollution type,
出处
《生态科学》
CSCD
1991年第2期1-20,共20页
Ecological Science
