air quality

air quality News

Varanasi's air quality 'deteriorating', Delhi victim 'negligence'

Delhi is ranked sixth on the list and there has been "laziness" on part of its elected caretakers in tackling air pollution in the city, the 'Political Leaders Position and Action on Air Quality in India 2014-2019' report, released by Climate Trends, said.

Delhi's air quality significantly improves, settles in 'poor' category: authorities

"The wind speed is unusually faster for this time of the year and improving the air quality rapidly. The AQI is predicted to remain in 'poor' category tomorrow and then to start increasing slowly from January 16 for next two days but to remain in the lower range of very poor," the SAFAR said.


Avoid outdoor activities, minimize use of pvt vehicles: CPCB warns

The task force said that at the beginning of November the situation may further deteriorate on account of localised emissions during festivals and regional contribution due to stubble burning.

Delhi's air quality slips to 'very poor', firefighting continues at Bhalswa landfill

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".

Delhi: PM 1 concentration in air increasing, scientists say trend cause for worry

There are no national or international acceptable standards for PM1 concentration in the air, unlike those for PM2.5 and PM10. But studies across the world have indicated a link between the pollutant and cardio-vascular disease.

Air quality: Dyson’s POLAR test challenges CADR; here is everything you need to know

To purify an entire room properly an air purifier must sense pollution events automatically; capture particles and pollutants such as PM 2.5 and PM10 and harmful gases, and project cleaner air to every corner of the room for even room purification.


Delhi records year's best quality of air on Tuesday: Authorities

An official of the Central Pollution Control Board said rains in the last few days washed away pollutants from the air which led to the quality of air improving.

Dust storms: Mandi Gobindgarh in Punjab records worst air quality in India

Three cities in Punjab figure in worst Air Quality Index list.

Chandigarh: Air quality worst at some places in 2017, says study

The study said particles deposited on or in the vicinity of the road may be re-entrained or resuspended into air through vehicle-induced turbulence, shearing stress of tyres and high windspeed. The common used term for these particles was ‘road dust'.

NGT directs NCR states to file ambient air quality data in two weeks

The tribunal had also rapped the Delhi government and the neighbouring states over their action plan on ways to deal with severe air pollution in the city and directed them to file a detailed document to tackle the problem.