机动车排气对常州市区大气环境的影响

Impact of Automobile Exhaust on Atmosphere in Changzhou City Area

为弄清机动车排气对常州市区大气环境的影响，该市环境监测中心站于１９９８年夏季选择了具有代表性的７个交通路段和３个交通路口布点对机动车排气中的主要污染物ＣＯ、ＮＯｘ、Ｐｂ等进行监测，结果表明，交通路段和交通路口大气中Ｐｂ污染较轻；而ＣＯ、ＮＯｘ（除个别路段外）日均值超过ＧＢ３０９５－１９９６《环境空气质量标准》二级标准，且总体看，交通路口的污染程度重于交通路段。针对机动车排气的污染状况，提出了防治建议。

For the impact of automible exhaust on atmosphere in Changzhou city, the monitoring center selected representative 3 crossroads and 7 segments of street in summer of 1998 to monitor main pollutants from exhaust gas such as CO,NO x and Pb. The monitoring data showed that Pb pollution was not so severe and day average of CO,NO x were over limit of Second Strategy in GB3095 1996 “Environmental Air Quality Standard”. Generally, pollution on crossroads is more severe than street segment. Based on the data, the paper presented pollution controlling suggestion.