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Delhi: Air quality 'hazardous'; 41 trains delayed by smog

Air quality earlier in the morning (at around 6.30 am) was reported in the 'severe' category but by about 8.30 am, it had worsened to 'hazardous'. Photograph: (ANI)

WION Web Team New Delhi, Delhi, India Nov 09, 2017, 03.36 AM (IST)

The air quality in Delhi Thursday morning was "hazardous". 

ANI reported that the air-quality index (AQI) pegged Punjabi Bagh at 799, Dwarka at 388, Shadipur at 362, and Anand Vihar at 515 -- all of them falling in the hazardous category. 

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ANI reported air quality earlier in the morning (at around 6.30 am) as falling in the "severe" category but by about 8.30 am, it had moved to hazardous. 

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ANI also added that 41 trains travelling to Delhi had been delayed due to the smog, that nine had been rescheduled, and 10 cancelled. 

There were no reports of any planes being delayed by the smog. 

There has been a sudden dip in air quality in Delhi ever since Diwali. 

While firecrackers were banned this year on Diwali, Delhi generally experiences a severe dip in air quality with the onset of winter. 

The cooler air traps pollutants closer the ground, preventing them from dispersing into the atmosphere, a phenomenon known as "inversion".

The burning of crop stubble in neighbouring states adds to the pollution. 

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