Delhi air quality slips to 'very poor' day after recording 'unusual improvement'; agencies attribute it to decline in wind speed

The overall air quality index (AQI) in Delhi was recorded at 320 — in the 'very poor' category, according to data from the Central Pollution Control Board (CPCB). Anand Vihar recorded 'severe' air quality. The AQI in 23 areas was registered in the 'very poor' category, while the situation was 'poor' in 12 areas. The level of PM2.5 was recorded at 179, and the PM10 level was recorded at 338.

Press Trust of India November 26, 2018 14:06:09 IST
Delhi air quality slips to 'very poor' day after recording 'unusual improvement'; agencies attribute it to decline in wind speed

New Delhi: Delhiites woke up to a hazy morning on Monday, with monitoring stations recording air quality in the "very poor" category, a day after the city witnessed an 'unusual improvement' in the conditions, officials said.

Delhi air quality slips to very poor day after recording unusual improvement agencies attribute it to decline in wind speed

A schoolboy wearing a protective mask looks on from the inside of a school bus in delhi. Reuters

The overall air quality index (AQI) was recorded at 320 — in the "very poor" category, according to data from the Central Pollution Control Board (CPCB). Anand Vihar recorded "severe" air quality. The AQI in 23 areas was registered in the "very poor" category, while the situation was "poor" in 12 areas. The level of PM2.5 (particles in the air with a diameter of less than 2.5 micrometres) was recorded at 179, and the PM10 level was recorded at 338.

In the NCR region, Ghaziabad recorded the worst air quality with an AQI of 398. Greater Noida and Noida's air quality was registered in the "very poor" category. Faridabad and Gurgaon recorded moderate air quality, according to CPCB data.

An AQI between 0 and 50 is considered 'good', 51 and 100 'satisfactory', 101 and 200 'moderate', 201 and 300 'poor', 301 and 400 'very poor', and 401 and 500 'severe'. According to the Centre-run System of Air Quality and Weather Forecasting (SAFAR), Delhi's air quality will remain in the "poor" category, amid a gradual increase in the pollution level, for the next two days.

"The increase in pollution can be attributed to a decline in wind speed as compared to past two days. All other meteorological factors were already unfavourable," the SAFAR said in a report. The national capital's air quality over the weekend showed an "unusual improvement" due to late night fast wind speed, SAFAR had said on Sunday.

Updated Date:

Find latest and upcoming tech gadgets online on Tech2 Gadgets. Get technology news, gadgets reviews & ratings. Popular gadgets including laptop, tablet and mobile specifications, features, prices, comparison.

also read

Daily COVID-19 cases drop below 50,000; lowest fatality rate since 22 March, says Centre
India

Daily COVID-19 cases drop below 50,000; lowest fatality rate since 22 March, says Centre

Meanwhile, Maharashtra deputy chief minister Ajit Pawar joined the list of ministers and politicians who have tested positive for COVID-19

Stubble burning: SC keeps its 16 Oct order in abeyance after Centre says law being drafted to curb air pollution
India

Stubble burning: SC keeps its 16 Oct order in abeyance after Centre says law being drafted to curb air pollution

In its 16 October order, SC had appointed one-man panel of retired apex court judge Justice Madan B Lokur to monitor the steps taken by neighbouring states to prevent stubble burning

For Delhi authorities, curbing pollution is key to flattening the winter COVID-19 curve
India

For Delhi authorities, curbing pollution is key to flattening the winter COVID-19 curve

The Delhi government has announced emergency measures from 15 October and set up a war room to monitor stubble burning and the resultant deterioration in air quality