The Impact of the COVID-19 Emergency on Local Vehicular Traffic and Its Consequences for the Environment: The Case of the City of Reggio Emilia (Italy)
The Impact of the COVID-19 Emergency on Local Vehicular Traffic and Its Consequences for the Environment: The Case of the City of Reggio Emilia (Italy)
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DOI：
10.3390/su13010118
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发表时间：
2021-01-01
期刊：
影响因子：
3.9
通讯作者：
Gamberini, Rita
中科院分区：
文献类型：
--
作者：
Marinello, Samuele;Lolli, Francesco;Gamberini, Rita
COVID-19卫生紧急情况要求限制及╱或停止非必要的经济及商业活动以及人员流动。这项工作的目的是报告对意大利北部特定研究区域的车流量和空气质量变化的评估，比较2020年2月至5月和2019年2月至5月的时间段。在雷焦艾米利亚市（意大利）当地道路网的九个特征点测量了行驶车辆，同时使用从区域空气质量监测网络提取的数据分析了大气污染物浓度。结果显示，2020年流通车辆数量迅速下降（数值高达-82%）。这有助于减少空气中污染物的浓度，特别是NO2和CO（分别超过30%和22%）。另一方面，O-3增加了（约+13%），但这是预期的。最后，颗粒物增加（约30%），其行为与整个区域领土相似。本研究的实证结果提供了一些指标和有用的信息，以帮助了解在城市地区的交通阻塞对空气质量的影响。
The COVID-19 health emergency has imposed the need to limit and/or stop non-essential economic and commercial activities and movement of people. The objective of this work is to report an assessment of the change in vehicle flows and in air quality of a specific study area in the north of Italy, comparing the periods February-May 2020 and February-May 2019. Circulating vehicles have been measured at nine characteristic points of the local road network of the city of Reggio Emilia (Italy), while atmospheric pollutant concentrations have been analysed using data extracted from the regional air quality monitoring network. The results highlight a rapid decline in the number of vehicles circulating in 2020 (with values of up to -82%). This has contributed to a reduction in air concentrations of pollutants, in particular for NO2 and CO (over 30% and over 22%, respectively). On the other hand, O-3 has increased (by about +13%), but this is expected. Finally, the particulate matter grew (about 30%), with a behaviour similar to the whole regional territory. The empirical findings of this study provide some indications and useful information to assist in understanding the effects of traffic blocking in urban areas on air quality.