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| 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 | 2021 |
| ISSN | 1352-2310 |
| 卷号 | 246 |
| 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 |
| 关键词 | Criteria pollutantsDiurnal cycleTruck strikeUrban air pollutionUrban microenvironmentsVehicular 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; carbon monoxide; hydrocarbon; nitrogen oxide; ozone; air quality; atmospheric pollution; concentration (composition); megacity; metropolitan area; particulate matter; pollutant source; roadside environment; urban pollution; air pollution; air quality; air temperature; atmosphere; Brazil; car driving; circadian rhythm; clinical evaluation; comparative study; concentration process; controlled study; driver; exhaust gas; human; Kruskal Wallis test; lockdown; microenvironment; particulate matter 10; particulate matter 2.5; priority journal; satellite imagery; solar radiation; urban area; Brazil; Sao Paulo [Brazil] |
| 来源期刊 | ATMOSPHERIC ENVIRONMENT
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| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/248714 |
| 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],2021,246. |
| APA | Chiquetto J.B.,Alvim D.S.,Rozante J.R.,Faria M.,Rozante V.,&Gobo J.P.A..(2021).Impact of a truck Driver's strike on air pollution levels in São Paulo.ATMOSPHERIC ENVIRONMENT,246. |
| MLA | Chiquetto J.B.,et al."Impact of a truck Driver's strike on air pollution levels in São Paulo".ATMOSPHERIC ENVIRONMENT 246(2021). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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