Air quality to remain ‘very poor’ on weekend

AQI to marginally deteriorate on Jan. 31 and Feb. 1: SAFAR

January 30, 2021 12:48 am | Updated 12:48 am IST - New Delhi

The air quality of Delhi and Gurugram was in the “very poor” category and Noida’s was “severe” on Friday, according to the Central Pollution Control Board data. The national capital’s air quality is not expected to improve much in the coming days.

“An improvement in ventilation index is forecast for the next two days, AQI is likely to marginally improve to the middle to lower end of the very poor category for Saturday. AQI is forecast to marginally deteriorate towards the middle-end of the very poor category on January 31 and February 1,” said a statement by the government-run monitoring agency, SAFAR (System of Air Quality and Weather Forecasting and Research).

The speed of surface-level winds was “slow”, which aided in accumulation of pollutants near the surface. Also, the “mixing layer height”, which is the height from the ground level up to which pollutants can be dispersed, was “low”. This also led to accumulation of pollutants near the surface.

The AQI of Delhi was 387 on Friday, up from 357 on Thursday, as per CPCB’s 4 p.m. bulletin, which is an average of the past 24 hours. The values for Gurugram and Noida were 342 and 415.

0 / 0
Sign in to unlock member-only benefits!
  • Access 10 free stories every month
  • Save stories to read later
  • Access to comment on every story
  • Sign-up/manage your newsletter subscriptions with a single click
  • Get notified by email for early access to discounts & offers on our products
Sign in

Comments

Comments have to be in English, and in full sentences. They cannot be abusive or personal. Please abide by our community guidelines for posting your comments.

We have migrated to a new commenting platform. If you are already a registered user of The Hindu and logged in, you may continue to engage with our articles. If you do not have an account please register and login to post comments. Users can access their older comments by logging into their accounts on Vuukle.