Kaur, J. “A Comparative Review of Air Quality in India’s Most Populated Capitals: Analyzing AQI Based on Environmental Pollutants PM2.5, Carbon Monoxide (CO), Nitrogen Dioxide (NO2), Sulfur Dioxide (SO2), and Ozone (O3)”. EAI Endorsed Transactions on Sustainable Manufacturing and Renewable Energy, vol. 1, no. 1, Oct. 2024, https://publications.eai.eu/index.php/sumare/article/view/7667.