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Evaluation of the impact of the national strike of the road freight transport sector on the air quality of the metropolitan region of Rio de Janeiro, Brazil
Sustainable Cities and Society ( IF 11.7 ) Pub Date : 2020-11-06 , DOI: 10.1016/j.scs.2020.102588
Luciana Maria Baptista Ventura , Michelle Branco Ramos , Márcio de Almeida D’Agosto , Adriana Gioda

In May 2018, there was a road freight transport standstill in Brazil that lasted 11 days. During this period, several impacts on Rio de Janeiro’s daily life were reported, such as the reduction of road passenger transport services and lack of fuels. This study aimed to evaluate the impact on the air quality of the metropolitan region of Rio de Janeiro (MRRJ) of the reduction of heavy-duty vehicles on the streets and roads. For this purpose, the reductions of PM10, NOx, SOx and CO emissions, due to low circulation of buses and trucks, were estimated in order to assess the levels of air pollution indirectly. Besides, air quality data (PM10, NO2, SO2, and CO) monitored before and during the strike were used. The results showed a reduction in total emissions of local air pollutants, harmful to human health from 22 % to 43 % during strike days. However, the air quality reflexes were not observed in the same proportion, on the contrary, increases were observed in pollutant concentrations in the atmosphere during traffic stoppage in the study areas, due to different weather conditions in the two periods, which directly influenced air pollutants dispersion.



中文翻译:

评估公路货运部门全国罢工对巴西里约热内卢都会区空气质量的影响

2018年5月,巴西公路货运停滞了11天。在此期间,据报告对里约热内卢的日常生活产生了若干影响,例如减少公路客运服务和缺乏燃料。这项研究旨在评估减少街道和道路上的重型车辆对里约热内卢(MRRJ)大都市区空气质量的影响。为此,估算了由于公共汽车和卡车的低流通量而导致的PM 10,NOx,SOx和CO排放量的减少,以便间接评估空气污染水平。此外,空气质量数据(PM 10,NO 2,SO 2和罢工前和罢工期间进行监控。结果表明,在罢工期间,对人体健康有害的局部空气污染物的总排放量从22%降低到43%。然而,由于两个时期的天气条件不同,研究区域的交通停顿期间,未观察到空气质量反射的比例相同,相反,研究区域的空气污染物浓度增加了,这直接影响了空气污染物分散。

更新日期:2020-11-06
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