New Delhi woke up to a choking blanket of smog on Tuesday as air quality in the world’s most polluted capital city reached hazardous levels. The US embassy website said levels of the fine pollutants known as PM2.5 that are…
New Delhi woke up to a choking blanket of smog on Tuesday as air quality in the world’s most polluted capital city reached hazardous levels. The US embassy website said levels of the fine pollutants known as PM2.5 that are…