| 空气中机动车尾气及其二次污染物浓度的初探 |
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| 引用本文： | 崔际刚,许铁磊,田健丽.空气中机动车尾气及其二次污染物浓度的初探[J].环境与健康杂志,2007,24(5):333-334. |
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| 作者姓名： | 崔际刚 许铁磊 田健丽 |
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| 作者单位： | 天津市环境监测中心交通污染监测室,天津,300191;天津市环境监测中心交通污染监测室,天津,300191;天津市环境监测中心交通污染监测室,天津,300191 |
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| 摘 要： | 目的探讨空气中机动车尾气及其二次污染物浓度的变化规律。方法于2005年4月10和12日7：00—17：00,在某交通主干道旁监测空气中机动车尾气污染物（NOx）及其二次污染物（O3）浓度的变化,同时调查车流量,以上述空气污染物浓度与车流量比值（K值）分析NOx（KNOx）和O3（KO3）浓度的时间变化的规律。结果7：00—9：00及17：00—18：00,KNOx值与KO3值变化趋势基本一致。11：00—15：00日照最强,KNOx值与KO3值变化趋势相反。KNOx值于12：00降至最低,KO3值于13：00升至最高。结论空气中机动车尾气二次污染物浓度与日照有一定关联。
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| 关 键 词： | 空气污染 机动车尾气 光化学烟雾 |
| 文章编号： | 1001-5914(2007)05-0333-02 |
| 修稿时间： | 2007年1月20日 |
Air Pollufion by Engine Exhausts and Its Secondary Pollutant in the Daytime |
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| CUI Ji-gang,XU Tie-lei,TIAN Jian-li.Air Pollufion by Engine Exhausts and Its Secondary Pollutant in the Daytime[J].Journal of Environment and Health,2007,24(5):333-334. |
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| Authors: | CUI Ji-gang XU Tie-lei TIAN Jian-li |
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| Abstract: | Objective To explore the variation of engine exhausts and its secondary pollutant in the daytime. Methods The concentration of engine exhausts(NOx) and its secondary pollutant(O3) were determined during 7:00-17:00, Apr 10th and 12th, 2005. The ratio of air pollutants to vehicle flow (KNOx, KO3) was analyzed to reflect the variation of air pollutants concentration in the daytime. Results The values of KNOx, and KO3 showed the same trend during 7:00-9:00 and 17:00-18:00, the opposite trend during 11:00-15:00. The peak value was observed at 12:00 for KNOx with the lowest level, at 13:00 for KO3 with the highest level. Conclusion Air pollution by secondary pollutant from engine exhausts is associated with sunlight. |
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| Keywords: | Air pollution Engine exhausts Photochemical smog |
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