'Breathless' Delhi grapples with toxic pollution as air quality nosedives to 'hazardous' category; PM 10 level reaches 760 in northwest Delhi

The sudden drop in temperature, triggered by snowfall and rain in the northern states, has enveloped Delhi in a thick cover of smog. The dust and pollution particles along with water molecules have been trapped in the air, making it very difficult to breathe for the residents of the national capital. 

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