Pakistan's Lahore has been declared the most polluted city in the world, leaving its traditional rival New Delhi in India far behind, Dawn reported.
New Delhi stood at less than half of Lahore’s pollution level, with 187.
Smog occurs when smoke mixes with fog.
On Monday, the humidity level in the city was 60 per cent — and such a level does not form fog. Monday’s mist did not cause any eye irritation, which also proves it was not smog. This means that this haze was pure pollution.