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- W4320147172 abstract "In the month of March 2020, the World Health Organization (WHO) declared COVID-19 as a pandemic. Amid the COVID-19 pandemic, Government of India has also initiated preventive measures by imposing nationwide lockdown initially for three weeks from 24th March 2020 to 14th April 2020 and extended up to 3rd May 2020. The aim of this study is to assess the impacts on air quality (PM2.5, PM10, NO2, NH3, SO2, CO and O3) during different phases of lockdown in different cities (Delhi, Mumbai, Bengaluru and Nagpur) of India. As a result, significant reduction in aerosol concentrations were observed; 40%, 53%, 45% and 34% in PM2.5 and 37%, 53%, 35% and 20% in PM10 at Delhi, Mumbai, Bengaluru and Nagpur respectively. Other air quality parameters such as NO2, NH3, SO2 and CO showed declining trends whereas increasing trend for O3 was observed. The present air quality data were also compared with previous year (2019) data and found significant reduction in the current year (2020). The overall results demonstrate that air quality is significantly improved due to nationwide lockdown. From this study, it can be observed that ambient clean air can be achieved by reducing people’s mobility in urban areas. This could help in reducing concentrations of air pollutants in cities. This study helps to visualize the pollutants response due to reduction in anthropogenic emissions in megacities which can help in making atmospheric governance policies." @default.
- W4320147172 created "2023-02-13" @default.
- W4320147172 creator A5014554950 @default.
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- W4320147172 date "2022-01-01" @default.
- W4320147172 modified "2023-09-27" @default.
- W4320147172 title "Impact of Lockdown on Air Quality in Megacities of India During COVID-19 Pandemic" @default.
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- W4320147172 doi "https://doi.org/10.1007/978-3-031-13119-6_24" @default.
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