Here’s Why Winter Air Quality in India Is so Bad 2020年09月21日2020年12月28日 Dhariyash Air Pollution Health Effects Masks PM2.5 Weather 哇!此内容没有中文版。点击这里快去看英文版! 你知道这些吗? Delhi’s Air Pollution Worse in Winter, Unhealthy All Year Is Summer Air Better Than Winter Air? Indian Winters are up to Three Times More Polluted Than Summer What Time of Day Is Air Pollution Lowest in India?