Air Quality in the New Delhi Metropolis under COVID-19 Lockdown
Dewansh Kaloni, Yee Hui Lee, and Soumyabrata Dev

TL;DR
This study examines the impact of COVID-19 lockdown measures on air quality in New Delhi, showing significant reductions in major pollutants through satellite and ground data analysis, informing future pollution control strategies.
Contribution
It provides a comprehensive analysis of satellite and ground-based data to quantify air quality improvements during COVID-19 lockdown in New Delhi, highlighting the effects of reduced human activity.
Findings
50% reduction in PM2.5 levels
71.9% reduction in NO2 levels
88% reduction in CO levels
Abstract
Air pollution has been on continuous rise with increase in industrialization in metropolitan cities of the world. Several measures including strict climate laws and reduction in the number of vehicles were implemented by several nations. The COVID-19 pandemic provided a great opportunity to understand the daily human activities effect on air pollution. Majority nations restricted industrial activities and vehicular traffic to a large extent as a measure to restrict COVID-19 spread. In this paper, we analyzed the impact of such COVID19-induced lockdown on the air quality of the city of New Delhi, India. We analyzed the average concentration of common gaseous pollutants viz. sulfur dioxide (SO), ozone (O), nitrogen dioxide (NO), and carbon monoxide (CO). These concentrations were obtained from the tropospheric column of Sentinel-5P (an earth observation satellite of European…
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Code & Models
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsCOVID-19 impact on air quality · COVID-19 Pandemic Impacts · COVID-19 epidemiological studies
