Science & Technology Review >

2016 , Vol. 34 >Issue 18: 130 - 136

DOI: https://doi.org/10.3981/j.issn.1000-7857.2016.18.017

Articles

Influence of Beijing vehicle restriction rule on air quality of hypo-artery road

  • TAO Shuangcheng ,
  • DENG Shunxi ,
  • LIU Ning ,
  • GAO Shuohan ,
  • YAO Jialin
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  • 1. School of Environment Science and Engineering, Chang'an University, Xi'an 710064, China;
    2. China Academy of Transportation Sciences, Beijing 100029, China

Received date: 2016-04-19

  Revised date: 2016-07-12

  Online published: 2016-10-21

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Abstract

In order to investigate the effect of traffic restriction on ambient air quality in urban hypo-artery road, concentrations of PM2.5, NO2, O3, CH4 and NMHC (non-methane hydrocarbons) were constantly monitored during Aug. to Sep. 2015. Meanwhile, traffic flow was calculated, and the impact from the 2015 Beijing Parade traffic restriction on vehicle operating conditions and air quality in urban roads were studied. The limiting effects were obviously shown on buses and heavy trucks; 35.36%, 45.12%, and 94.23% traffic reductions were found on minibuses, medium buses, and heavy trucks, respectively during that period; while taxis and public transport increased. Pollutant concentrations varied significantly during and after traffic restriction. There was less change in methane concentration while concentrations of nitrogen dioxide and non-methane hydrocarbon were increased by 127% and 33.3%, respectivey. The ozone concentration was decreased by 27.7%. Pearson analysis reflected that the traffic flow had 1) a significant negative correlation with CH4 hourly concentration; 2) no significant correlation with PM2.5 concentration. A comparative analysis between monitoring data from background control point suggests that the traffic flow has significant correlation with the net contributions of NO2 and O3 concentrations from motor vehicles. During the Parade traffic restriction period, the average cut range of NO2 concentration on the monitored section was 51.25% while the average increase range of O3 concentration was 82.99%. Under the restriction and regional comprehensive emission reduction measures, an average cut range of 34.72% on PM2.5 was met.

Key words： vehicles restriction rule; hypo-artery road; air quality; PM2.5; ozone

Cite this article

TAO Shuangcheng , DENG Shunxi , LIU Ning , GAO Shuohan , YAO Jialin . Influence of Beijing vehicle restriction rule on air quality of hypo-artery road[J]. Science & Technology Review, 2016 , 34(18) : 130 -136 . DOI: 10.3981/j.issn.1000-7857.2016.18.017

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