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工业聚集区大气VOCs组成特征及对臭氧生成的影响

成翔 赵继峰 肖洋 李思遠 孙友敏 杨雪 张桂芹

成翔, 赵继峰, 肖洋, 李思遠, 孙友敏, 杨雪, 张桂芹. 工业聚集区大气VOCs组成特征及对臭氧生成的影响[J]. 环境工程技术学报, 2020, 10(5): 823-830. doi: 10.12153/j.issn.1674-991X.20190209
引用本文: 成翔, 赵继峰, 肖洋, 李思遠, 孙友敏, 杨雪, 张桂芹. 工业聚集区大气VOCs组成特征及对臭氧生成的影响[J]. 环境工程技术学报, 2020, 10(5): 823-830. doi: 10.12153/j.issn.1674-991X.20190209
CHENG Xiang, ZHAO Jifeng, XIAO Yang, LI Siyuan, SUN Youmin, YANG Xue, ZHANG Guiqin. Composition characteristics of atmospheric VOCs and the influence on ozone formation in an industrial cluster area[J]. Journal of Environmental Engineering Technology, 2020, 10(5): 823-830. doi: 10.12153/j.issn.1674-991X.20190209
Citation: CHENG Xiang, ZHAO Jifeng, XIAO Yang, LI Siyuan, SUN Youmin, YANG Xue, ZHANG Guiqin. Composition characteristics of atmospheric VOCs and the influence on ozone formation in an industrial cluster area[J]. Journal of Environmental Engineering Technology, 2020, 10(5): 823-830. doi: 10.12153/j.issn.1674-991X.20190209

工业聚集区大气VOCs组成特征及对臭氧生成的影响

doi: 10.12153/j.issn.1674-991X.20190209
详细信息
    作者简介:

    成翔(1972—),男,高级工程师,主要从事环境监测方面研究,cheng2003505@163.com

    通讯作者:

    张桂芹 E-mail: zhangguiqin320@163.com

  • 中图分类号: X51

Composition characteristics of atmospheric VOCs and the influence on ozone formation in an industrial cluster area

More Information
    Corresponding author: ZHANG Guiqin E-mail: zhangguiqin320@163.com
  • 摘要: 运用VOCs在线快速连续自动监测系统,检测了淄博市某工业集聚区大气中59种VOCs组分的浓度。结果表明:观测期间VOCs浓度平均值为(130.74±63.42)×10-9(以体积分数计,全文同),其中,烷烃占41.17%±17.67%,烯烃占34.22%±23.79%,含硫有机物占12.20%±20.83%,芳香烃占6.70%±10.39%,炔烃占5.75%±6.49 %;烯烃类VOCs活性最高,尤其是乙烯、顺-2-丁烯和丙烯,其参与大气中光化学反应的能力较强。选取VOCs和O3浓度不同的2个典型时段,用量子化学分子模拟对检出的含硫有机物与羟基自由基(·OH)的前线轨道能量差进行估算,发现甲硫醇、二甲基硫醚和二甲基二硫醚易与·OH发生链引发反应;分析2个时段VOCs组分对O3生成的影响得出,当烯烃和芳香烃浓度不高时,因含硫有机物浓度增加,O3浓度仍处于较高水平,含硫有机物是大气中O3生成的主要贡献物。通过VOCs/NOx判断敏感性发现,观测期间淄博市O3生成对VOCs比较敏感,属于VOCs控制区。

     

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  • 收稿日期:  2019-12-11
  • 刊出日期:  2020-09-20

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