气候变化领域集成服务门户(CCPortal): Impact of a truck Driver's strike on air pollution levels in São Paulo

CCPortal

DOI	10.1016/j.atmosenv.2020.118072
	Impact of a truck Driver's strike on air pollution levels in São Paulo
	Chiquetto J.B.; Alvim D.S.; Rozante J.R.; Faria M.; Rozante V.; Gobo J.P.A.
发表日期	2020
ISSN	13522310
英文摘要	From May 21st to 31st, 2018, a truck driver strike greatly decreased all vehicle activity in Brazil. We evaluated the concentrations of criteria pollutants in seven different microenvironments during this period in the São Paulo Megacity. Results were evaluated by violin plots, the Kruskal-Wallis test and diurnal cycles, comparing the year 2018 to an average of 4 previous years. Primary pollutants (CO and NO) decreased by 50% in 2018, predominantly in roadside (RDS) locations. NO2, PM10, and PM2.5 did not decrease as much, suggesting the relevance of secondary reactions and other sources (ex: fires). Ozone increased significantly (about 30–50%), possibly due to favourable atmospheric conditions (solar radiation) and changes in the NOx/VOCs ratio caused by the decrease in NO. Our findings help to better assess the role of vehicular emissions and provide insights on the impacts of interruption of activities (ex: during lockdowns) over air quality in metropolitan environments. © 2020 Elsevier Ltd
英文关键词	Criteria pollutants; Diurnal cycle; Truck strike; Urban air pollution; Urban microenvironments; Vehicular emission
语种	英语
scopus关键词	Air quality; Nitrogen oxides; Truck drivers; Atmospheric conditions; Kruskal-Wallis tests; Microenvironments; Pollution level; Primary pollutants; Secondary reactions; Vehicle activity; Vehicular emission; Trucks
来源期刊	Atmospheric Environment
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/153067
作者单位	Institute of Advanced Studies, University of São Paulo, Brazil; Center for Weather Forecast and Climate Studies, National Institute for Space Research, Brazil; Institute of Physics, University of São Paulo, Brazil; School of Chemical Engineering, State University of Campinas, Brazil; Geography Department, Federal University of Rondônia, Brazil
推荐引用方式 GB/T 7714	Chiquetto J.B.,Alvim D.S.,Rozante J.R.,et al. Impact of a truck Driver's strike on air pollution levels in São Paulo[J],2020.
APA	Chiquetto J.B.,Alvim D.S.,Rozante J.R.,Faria M.,Rozante V.,&Gobo J.P.A..(2020).Impact of a truck Driver's strike on air pollution levels in São Paulo.Atmospheric Environment.
MLA	Chiquetto J.B.,et al."Impact of a truck Driver's strike on air pollution levels in São Paulo".Atmospheric Environment (2020).