The capital's air quality index (AQI) has remained in the "severe" category for days, with PM2.5 concentrations surging past 400 mg/m3 -- far beyond the World Health Organization's (WHO) safe limit of ...

As India allows toxic air to choke Delhiites without even discussing what it would take to save its capital, Beijing in 2013 ...

Air pollution can cause respiratory illnesses, allergies, and, in extreme cases, even lung cancer in pets, which can shorten ...