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Ozone changes in response to the heavy-duty diesel truck control in the Pearl River Delta

机译:响应珠江三角洲重型柴油卡车控制,臭氧变化

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摘要

In recent years, restricting heavy-duty diesel trucks from driving within urban areas during the daytime is implemented in major PRD cities (e.g. Guangzhou and Shenzhen). Potential effects of this traffic control policy on spatial and temporal variations of O_3 concentrations are examined by CMAQ. model system. Temporal profiles of mobile source emissions are modified to reflect the emission characteristics after the control. Our results show that: (1) with the updated mobile emission profile, there is a notable improvement in O_3 simulation performance for urban sites, with reductions in both the nighttime O_3 overestimation (up to 25 ppb) and the daytime underestimation on O_3 peak values (up to 20 ppb); (2) although the control policies are only applied in urban locations, their effects may extend to much larger downwind areas. The results from this study provide basic information that is useful in understanding the effects of mobile control policies on ambient O_3 in highly developing regions of China where similar strategies have been widely implemented.
机译:近年来,在珠三角主要城市(例如广州和深圳)实施了限制重型柴油卡车在白天在市区内行驶的措施。 CMAQ检查了此交通控制策略对O_3浓度的时空变化的潜在影响。模型系统。修改了移动源排放的时间分布,以反映控制后的排放特征。我们的结果表明:(1)使用更新的移动排放配置文件,城市站点的O_3模拟性能有了显着改善,夜间O_3高估(最高25 ppb)和白天O_3峰值的低估都减少了(最高20 ppb); (2)尽管控制政策仅适用于城市地区,但其影响可能会扩展到更大的顺风地区。这项研究的结果提供了基本信息,有助于理解机动控制政策对中国高度发展地区(已广泛实施类似策略)对环境O_3的影响。

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  • 来源
    《Atmospheric environment》 |2014年第5期|269-274|共6页
  • 作者单位

    Division of Environment, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China;

    Division of Environment, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China,Atmospheric Research Center, The Hong Kong University of Science and Technology, Fok Ying Tung Graduate School, Nansha, Guangzhou, China;

    Division of Environment, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China,Atmospheric Research Center, The Hong Kong University of Science and Technology, Fok Ying Tung Graduate School, Nansha, Guangzhou, China;

    Division of Environment, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China;

    Division of Environment, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China,Atmospheric Research Center, The Hong Kong University of Science and Technology, Fok Ying Tung Graduate School, Nansha, Guangzhou, China;

    College of Environmental Science and Engineering, South China University of Technology, Guangzhou, China;

    Division of Environment, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China,Atmospheric Research Center, The Hong Kong University of Science and Technology, Fok Ying Tung Graduate School, Nansha, Guangzhou, China,Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Mobile source emission; Traffic control policy; Ozone; Pearl River Delta; CMAQ;

    机译:移动源发射;交通管制政策;臭氧;珠三角咨询委员会;

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