The Guardian Sunil Dahiya The Guardian Sunil Dahiya

‘The air is killing us’: why Delhi’s pollution problem runs deeper than smog season

As winter sets in across north India – usually around the time of the country’s biggest festival, Diwali – the air in Delhi becomes thick and brown with visible pollutants. To breathe in is to taste toxic fumes. The visibility is often so bad that famous monuments are reduced to smoky blurs on the horizon. It is, as one writer once put it, as if a burial shroud has cloaked the city.

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Indian Express Sunil Dahiya Indian Express Sunil Dahiya

Delhi-NCR schools shut; AAP, BJP spar over worsening AQI

“An increase in PM 2.5 levels has occurred because all existing perennial sources of pollution haven’t been controlled in a systematic and comprehensive way. The base emissions load is already high so in episodic events, we can see this kind of spike,” explained Sunil Dahiya, founder and lead air quality analyst at Envirocatalysts.

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