The pollution levels in Delhi was found to be two times higher than the safe levels at noon on Wednesday (16 October). The air quality index (AQI) was 309.
Experts said to check further deterioration, authorities must act quickly against all emission sources. As per System of Air Quality and Weather Forecasting And Research (Safar) extended outlook, further deterioration in AQI of Delhi may start from the fourth week of October.
As the AQI crossed the 300-mark, the AQI plunged to the very poor category for first time this season, two times higher than safe levels.
PM2.5 has deteriorated sharply to 131 in the very poor category. The PM 10 score at 241 is much better in the moderate category, according to pollution readings by Safar India.
Experts said the PM 2.5 pollutants are rising dangerously.
Vivek Chattopadhyaya, Programme Manager, Air Pollution Control Unit, Centre for Science and Environment (CSE) said the air quality is deteriorating fast due to stagnating weather and has reached to very poor category on hourly basis.
As per the CPCB's monitoring portal, average PM2.5 at noon on Wednesday was 134.6 microgram per cubic metre which is about two times higher than the safe level for 24 hours (60 microgramme per cubic metre), he added.
"To prevent further deterioration authorities must gear up to intensify their action on all emission sources," he added.
The late monsoon withdrawal is not good for air quality in North India as the time progresses towards winter. During the fourth week of October, the temperature will also see a dip, Safar said.
As per Central Pollution Control Board (CPCB), very poor category air can cause respiratory illness on prolonged exposure.
(This story has been published from a wire agency feed without modifications to the text. Only the headline has been changed.)
As you are no doubt aware, Swarajya is a media product that is directly dependent on support from its readers in the form of subscriptions. We do not have the muscle and backing of a large media conglomerate nor are we playing for the large advertisement sweep-stake.
Our business model is you and your subscription. And in challenging times like these, we need your support now more than ever.
We deliver over 10 - 15 high quality articles with expert insights and views. From 7AM in the morning to 10PM late night we operate to ensure you, the reader, get to see what is just right.
Becoming a Patron or a subscriber for as little as Rs 1200/year is the best way you can support our efforts.