Impacts of partial to complete COVID-19 lockdown on NO(2) and PM(2.5) levels in major urban cities of Europe and USA.
Impacts of partial to complete COVID-19 lockdown on NO(2) and PM(2.5) levels in major urban cities of Europe and USA.
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DOI：
10.1016/j.cities.2021.103308
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发表时间：
2021-10
期刊：
影响因子：
--
通讯作者：
Mishra B
中科院分区：
文献类型：
--
作者：
Bar S;Parida BR;Mandal SP;Pandey AC;Kumar N;Mishra B
SARS CoV-2 (COVID-19) 冠状病毒在全世界范围内造成了巨大的痛苦、死亡和经济损失。对工业、非必要业务、交通和公民流动采取严格的遏制措施，以遏制疫情蔓延。封锁可能对减少大气污染物产生有利影响。本研究基于Sentinel-5Ps和地面站观测数据，分析了2020年部分至完全封锁期间大气污染物的变化。结果显示，由于封锁，2020年欧洲（马德里、米兰、巴黎）和美国（纽约、波士顿和美国）主要城市地区的对流层NO2平均浓度较2019年同期大幅下降18%至40%。斯普林菲尔德）。相反，部分或没有采取封锁措施的城市地区（即华沙、皮埃尔、俾斯麦和林肯）的平均二氧化氮浓度下降幅度相对较小（3％至7.5％）。发现气象变化的作用可以忽略不计。然而，大气污染物水平的降低主要归因于车辆、发电厂和工业排放的关闭。 COVID-19 期间空气质量的改善可能是暂时的，但监管机构应该学会在环境、社会和经济增长之间进行权衡，长期减少空气污染。政策制定者应解决城市设计、健康和环境的交叉问题，以保护公众健康，并采取可持续城市政策来增强城市抵御未来任何紧急情况的能力。
SARS CoV-2 (COVID-19) coronavirus has been causing enormous suffering, death, and economic losses worldwide. There are rigorous containment measures on industries, non-essential business, transportation, and citizen mobility to check the spread. The lockdowns may have an advantageous impact on reducing the atmospheric pollutants. This study has analyzed the change in atmospheric pollutants, based on the Sentinel–5Ps and ground-station observed data during partial to complete lockdown period in 2020. Results revealed that the mean tropospheric NO2 concentration substantially dropped in 2020 due to lockdown against the same period in 2019 by 18–40% over the major urban areas located in Europe (i.e. Madrid, Milan, Paris) and the USA (i.e. New York, Boston, and Springfield). Conversely, urban areas with partial to no lockdown measures (i.e. Warsaw, Pierre, Bismarck, and Lincoln) exhibited a relatively lower dropdown in mean NO2 concentration (3 to 7.5%). The role of meteorological variability was found to be negligible. Nevertheless, the reduced levels of atmospheric pollutants were primarily attributed to the shutdown of vehicles, power plants, and industrial emissions. Improvement in air quality during COVID-19 may be temporary, but regulatory bodies should learn to reduce air pollution on a long-term basis concerning the trade-offs between the environment, society, and economic growth. The intersection of urban design, health, and environment should be addressed by policy-makers to protect public health and sustainable urban policies could be adopted to build urban resilience against any future emergencies.
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DOI：
10.1016/s0140-6736(17)30505-6
发表时间：
2017-05-13
期刊：
Lancet (London, England)
影响因子：
--
作者：
Cohen AJ;Brauer M;Burnett R;Anderson HR;Frostad J;Estep K;Balakrishnan K;Brunekreef B;Dandona L;Dandona R;Feigin V;Freedman G;Hubbell B;Jobling A;Kan H;Knibbs L;Liu Y;Martin R;Morawska L;Pope CA 3rd;Shin H;Straif K;Shaddick G;Thomas M;van Dingenen R;van Donkelaar A;Vos T;Murray CJL;Forouzanfar MH
通讯作者：
Forouzanfar MH
影响因子：
5
作者：
Chu, Lixia;Oloo, Francis;Blaschke, Thomas
通讯作者：
Blaschke, Thomas
影响因子：
9.8
作者：
Abdullah, Samsuri;Abu Mansor, Amalina;Ramly, Zamzam Tuah Ahmad
通讯作者：
Ramly, Zamzam Tuah Ahmad
影响因子：
9.8
作者：
Collivignarelli, Maria Cristina;Abba, Alessandro;Miino, Marco Carnevale
通讯作者：
Miino, Marco Carnevale
影响因子：
8.3
作者：
Acharya P;Barik G;Gayen BK;Bar S;Maiti A;Sarkar A;Ghosh S;De SK;Sreekesh S
通讯作者：
Sreekesh S