metros

Delhi Pollution AQI Smog – With so many cities in India, why is only Delhi fighting against pollution? What is the situation in Mumbai-Bengaluru-Chennai-Kolkata – Why Delhi faces severe pollution while other Indian metros like Mumbai, Bangalore, Chennai and Kolkata do not

First, understand the differences in the AQI recorded at different stations in the four cities. That is, the number between the cleanest air and ...