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Chu, L. (author), Masiliunas, Dainius (author), Crivellari, Alessandro (author), Lofi, C. (author)The outbreak of the coronavirus disease 19 (Covid-19) has posed a worldwide threat to human beings, economic activities, and society. Enforced lockdowns for limiting the spread of Covid-19 virus also substantially reduce air pollutant emissions from vehicle traffic, industrial plants, etc. The lockdown restrictions have brought beneficial...poster 2022