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 Sust Man Ren Energy 2024, 1 (1). https://doi.org/10.4108/eetsmre.7667.