Effect of short-term regional traffic restriction on urban submicron particulate pollution.
作者： Suping Zhao , Ye Yu
DOI: 10.1016/J.JES.2016.06.023
关键词:
摘要: During the 2013 and 2015 Lanzhou International Marathon Events (LIME1 LIME2), local government made a significant effort to improve traffic conditions air quality by implementing restriction measures. To fill gap in information on effect of short-period (several hours) control urban quality, submicron particle size distributions meteorological data were measured simultaneously during June Lanzhou. The number surface area concentrations particles 100-200nm range declined 67.2% 65.0% for LIME1 due control, while they decreased 39.2% 37.1% LIME2. impact pollution near sampling site lagged behind period In addition, was dependent distance between relative orientation traffic-restricted zones, as well such wind direction. influence restrictions differed different sizes. most affected 60-200 60-300nm environment, respectively, volume concentration it 100-600nm range. This study will provide basis implementation future traffic-induced particulate
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