Is Mumbai more polluted than Delhi?

Yes, Delhi is generally more polluted than Mumbai. Delhi frequently experiences poor air quality, particularly during the winter months, due to a combination of vehicle emissions, industrial pollution, construction dust, and agricultural stubble burning in nearby states. The air quality index (AQI) in Delhi often reaches hazardous levels. Delhi’s landlocked location exacerbates pollution problems, as pollutants can become trapped due to atmospheric conditions, especially during winter temperature inversions. Mumbai, being a coastal city, benefits from sea breezes that help disperse pollutants more effectively. While both cities have high population densities, Delhi’s rapid urbanization and higher vehicular traffic contribute significantly to its pollution levels. Additionally, Delhi has a higher concentration of industrial activities within and around the city, which adds to the pollution burden. Seasonal factors such as Diwali firecrackers and winter stubble burning further worsen Delhi’s air quality. In contrast, Mumbai does not experience such extreme seasonal pollution spikes. Overall, while both cities face significant pollution challenges, Delhi’s air quality issues are more severe and persistent compared to Mumbai.