First time in India, total lockdown was announced on 22 March 2020 to stop the spread of
COVID-19 and the lockdown was extended for 21 days on 24 March 2020 in the first phase …

Abstract Fine particulate matter (PM 2.5) is the leading environmental risk factor that requires
regular monitoring and analysis for effective air quality management. This work presents the …

Abstract PM 2.5 (particulate matter with a size/diameter≤ 2.5 μm) is an important air
pollutant that affects human health, especially in urban environments. However, as time …

The nationwide lockdown in India to flatten the pandemic COVID-19 curve has resulted in
the reduction of anthropogenic emission sources to a great extent. This study reports change …

COVID-19 is one of the deadly Epidemics that has impacted people living in more than 200
countries. In order to mitigate the impact of COVID-19, India observed total lockdown in the …

COVID-19 pandemic compelled many countries in the world to go for a nationwide lockdown
to prevent the spread of the coronavirus. India started the lockdown on 24 March 2020. We …

The main objective of this study is to apply hybrid-wavelet models developed by combining
artificial intelligence (AI) techniques and wavelet transforms to the prediction of PM 2.5 …

Ozone (O 3) decomposition in the troposphere is a very important process which prevents
excessive O 3 accumulation in the air. It is particularly significant on warm summer days …

The current study discourses the impact of variation in PM 2.5 concentration on the ambient
air quality of Delhi. The 24-hourly PM 2.5 concentration dataset was obtained from air quality …

This study attempts to introduce haze pollution into the environmental efficiency evaluation
framework and measures PM2. 5 environmental efficiency in China during 2001–2017 …