天津市主要交通道口二氧化硫和氮氧化物的监测与分析研究  

Monitor and Analysis on Atmospheric Nitrogen Oxides and Sulfur Dioxide in Main Traffic Crossings of Tianjin

作　　者：苑红丹 

机构地区：[1]天津市环境监测中心,天津300191

出　　处：《环境科学与管理》2015年第3期121-126,共6页Environmental Science and Management

摘　　要：随着经济的增长与城市化的扩张,交通堵塞及机动车气体排放导致的城市道路交通性污染日益严重,成为国家主要的环境问题[1]。以天津为例,我们选择了具有代表性的四个交通路口。采用连续监测的方法,对空气中的主要交通性污染物氮氧化物和二氧化硫的含量进行了监测分析。结果表明,海光寺氮氧化物污染最严重;其中二氧化硫浓度变化较为平稳通常,氮氧化物波动较大,车流量增加氮氧化物浓度增加,但是车流量与二氧化硫浓度影响较小。距离交通路口越远,氮氧化物的浓度越低。With the rapid economy development and urbanization,the atmosphere pollution caused by traffic jam and motor vehicle gas is becoming more serious,becoming a major environmental problem. Taking Tianjin as an example,this paper selected four representative traffic intersections. The concentration of main traffic pollutants like NOxand SO2 in the air was detected with the method of monitoring pollution spots. The result showed that NOxpollution in Haiguangsi was more serious. The concentration of SO2 is steady,while that of NOxfluctuated wildly. With the increase of traffic,the concentration of NOxenhanced. But SO2 has small impact on the concentration of sulfur dioxide. The concentration of NOxwas lower in areas far away from crossings.

关 键 词：交通性污染 氮氧化物 二氧化硫 空气污染指数 

分 类 号：X831[环境科学与工程—环境工程]