Delhi air turns toxic again

On Friday, the Air Quality Index (AQI) was 406 in the capital.

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Delhi air quality worsened to the “severe” category on Friday. It is expected to improve to the higher end of the “very poor” category in the next two days.

On Friday, the Air Quality Index (AQI) was 406 in the capital, it was 400 on Thursday. This data is average of the past 24 hours provided by the Central Pollution Control Board’s (CPCB). AQI between 301 and 400 is considered as “very poor” and between 401 and 500 is “severe”.

The spike in pollution currently happened due to a drop in wind speed and a fall in the height up to which pollutants can be distributed in the atmosphere.

Winds might increase in next two days and increase diffusion of pollutants leading to slight improvement. The AQI will remain in very poor category for a while.

On Friday, the contribution of stubble burning in neighbouring States to PM2.5 (a chief pollutant) in Delhi was only 8%, according to SAFAR.

Severe air pollution levels affect healthy people and “seriously impacts” those with existing diseases, according to the CPCB.

Doctors in many hospitals said they witnessed a rise in the number of patients coming to hospitals with respiratory problems this year since the spike in pollution.

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