Do city lockdowns effectively reduce air pollution?

Lin, Weiran; He, Qiuqin; Xiao, Yuan; Yang, Jingwen

doi:10.1016/j.techfore.2023.122885

Technological Forecasting and Social Change

2023

DOI: 10.1016/j.techfore.2023.122885

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Do city lockdowns effectively reduce air pollution?

Weiran Lin,

Qiuqin He,

Yuan Xiao

et al.

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2024

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Cited by 3 publications

References 46 publications

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Ozone and its precursors at an urban site in the Yangtze River Delta since clean air action plan phase II in China

Fang,

Wang,

Wang

et al. 2024

Environmental Pollution

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Ozone and its precursors at an urban site in the Yangtze River Delta since clean air action plan phase II in China

Fang,

Wang,

Wang

et al. 2024

Environmental Pollution

View full text Add to dashboard Cite

Exposure to airborne particulate matter during commuting using portable sensors: Effects of transport modes in a French metropolis study case

Ramel-Delobel,

Peruzzi,

Coudon

et al. 2024

Journal of Environmental Management

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Air Quality in the Cartagena Basin in South-Western Europe and the Impact of the COVID-19 Pandemic

Moreno-Cegarra,

Pérez,

García

2024

Atmosphere

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The port of Cartagena, south-east Spain, is noted for its intense activity. This paper presents the influence of the COVID-19 pandemic on the recorded levels of six pollutants. Fifteen years of measurements were used, with two objectives. The first was to investigate how these pollutants evolved, together with their usual cycles. The second objective was to ascertain whether the COVID-19 pandemic had an impact on the concentrations recorded. The results showed that nitrogen oxide concentrations remained steady in the first half of the measurement period and decreased in the second half. SO2 concentrations decreased irregularly, whereas O3 and PM10 presented steady concentrations. The annual cycle was observed for nitrogen oxides and O3. Only SO2 evidenced no weekly cycle. Finally, the analysis of pre- and post-pandemic concentrations revealed a sharp decrease in nitrogen oxides, whereas the pandemic was not seen to have had any impact on the other pollutants. In addition, NO2 emerged as the best indicator of human activity––represented by car and maritime traffic––due to its response to the relaxation measures. Finally, Lamb weather types were calculated. The unclassified type was the most frequent. However, the greatest concentration changes were observed for anticyclonic and eastern flow types.

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Do city lockdowns effectively reduce air pollution?

Cited by 3 publications

References 46 publications

Ozone and its precursors at an urban site in the Yangtze River Delta since clean air action plan phase II in China

Ozone and its precursors at an urban site in the Yangtze River Delta since clean air action plan phase II in China

Exposure to airborne particulate matter during commuting using portable sensors: Effects of transport modes in a French metropolis study case

Air Quality in the Cartagena Basin in South-Western Europe and the Impact of the COVID-19 Pandemic

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