保定市区主要交通干道环境空气污染状况分析研究

利用保定市2013年7月份监测站点位大气环境监测统计数据,对保定市主要交通干道环境质量状况进行分析,结果表明,二氧化硫的日变化呈单峰分布,在中午12:00左右出现峰值,最低值出现在凌晨5:00。氮氧化物及一氧化碳的日变化呈现双峰型变化规律,早晨8:00左右出现第一个峰值,分别在下午15:00和17:00左右达到最低值,夜间19:00左右出现第二个峰值。说明交通干道两侧区域的二氧化硫、氮氧化物、一氧化碳的浓度变化与机动车流量之间存在一定的关系。

Analysis on Air Pollution Status of Main Roads in Urban Areas of Baoding City

The environmental quality of main roads in urban areas of Baoding City has been analyzed by utilizing the atmospheric statistical data collected by Environmental Monitoring Stations of Baoding in July, 2013. The analysis results show that the daily variation of sulfur dioxide has shown a single peak distribution, with the peak value appears at 12：00 o＇clock or so and the lowest value appears in 5：00 am. The daily variation of the nitrogen oxides and carbon monoxide have shown dual - peak tendency, which appears the firs peak around 8：00 in the morning, the two lowest values at 15：00 and 17：00 respectively, and at about 19：00 appears the second peak. There is a strong correlation between the density variations of SO2, NOx and CO and the traffic flow of vehicles.