| The traffic emission and its impact on air quality in Guangzhou area |
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| 作者姓名： | Zhang Yuan-hang Xie Shao-dong Zeng Li-min Wang Hui-xiang Yu Kai-heng Zhu Chang-jian Pan Nan-ming Wang Bo-guang |
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| 作者单位： | Laboratory of Atmospheric Environmental Simulation, ESPC, Center of Environmental Sciences, Peking University, Beijing 100871, China,Guangzhou Research Institute of Environmental Protection, Guangdong 510620, China |
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| 基金项目： | the Trans-Century Training Program Foundation for the Talents by the tate Education Ministry of China，maximum concentration of O3 would increase 60％-100％if vehicular emission increased 100％ in Guangzhou，，，， |
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| 摘 要： | A comprehensive field measurement was set up in Guangzhou City of China and the key was placed on NOx and O3 pollution. The results indicated that the average driving speed of vehicle was only 14 km/h in downtown with high frequency of idle and acceleration. Upward fluxes of CO and NO were observed in Dongfeng street. NOx annual mean concentration in urban area increased year by year, and NOx was identified as the most important pollutant since 1995. Photochemical smog pollution was serious in general,spatial and seasonal distribution of O3 was observed. O3 concentration was kept in a high level in autumn, and its formation was restrained in summer due to frequent thunderstorm and high humidity. The numerical simulation showed the average concentration and maximum concentration of O3 would increase 60%—100% if vehicular emission increased 100% in Guangzhou.
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| 关 键 词： | ozone photochemical smog traffic pollution |
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