Hundreds of millions of Indians breathe some of the world’s most toxic air all year round. Air pollution in the capital area that’s home to about 30 million people is especially stubborn. In winter, the cold weather actually makes the smog even worse — and potent.

Unhealthy

Delhi's air quality improved slightly on Tuesday. Wind speed helped clear some pollution. The AQI shifted from 'severe' to 'very poor'. GRAP-IV restrictions remained in place. Schools continued hybrid learning.