Stubble smoke, low humidity and stagnant winds have trapped pollutants close to the surface, worsening Delhi’s smog, with conditions expected to deteriorate further over the next 48 hoursStubble smoke, low humidity and stagnant winds have trapped pollutants close to the surface, worsening Delhi’s smog, with conditions expected to deteriorate further over the next 48 hours Latest News [ SOBAN NEWS: International and National ]