Research Article
Analysis of Air Quality During and After Nation Wide Lockdown in India
@INPROCEEDINGS{10.4108/eai.24-3-2022.2318958, author={Sameena Naaz and Farheen Siddiqui and Iffat Rehman Ansari}, title={Analysis of Air Quality During and After Nation Wide Lockdown in India}, proceedings={Proceedings of the 3rd International Conference on ICT for Digital, Smart, and Sustainable Development, ICIDSSD 2022, 24-25 March 2022, New Delhi, India}, publisher={EAI}, proceedings_a={ICIDSSD}, year={2023}, month={5}, keywords={air pollution covid 19 india lockdown}, doi={10.4108/eai.24-3-2022.2318958} }- Sameena Naaz
Farheen Siddiqui
Iffat Rehman Ansari
Year: 2023
Analysis of Air Quality During and After Nation Wide Lockdown in India
ICIDSSD
EAI
DOI: 10.4108/eai.24-3-2022.2318958
Abstract
The Indian subcontinent came to a standstill on 22nd March 2020 with the nationwide lockdown due to COVID -19. Its repercussions were both positive and negative. This paper is an attempt to provide a quantitative analysis of the particulate matter (PM2.5 and PM10) and the air quality index with the aid of satellite-based data from the beginning of January 2020 till end of June 2021. Based on the analysis, we conclude that there was significant improvement in air quality all over India during the first phase of lockdown but as the lockdown gradually uplifted, the condition again started to deteriorate. This study also shows the lockdown effects of different atmospheric compositions, specifically through massive traffic reductions on roads. This effect has been significant for a few brief environmental trace species, with a huge decrease in NO2 fixations, a lower decrease in Particulate Matter (PM) and a moderate impact on ozone fixations due to nonlinear chemical effects.