The national capital on Saturday witnessed cleanest air quality of the year so far with the overall AQI at 42, under the 'good' category
While Ghaziabad topped the list of most polluted regional cities (110 PM2.5), India ranked sixth on the list of 98 countries in PM2.5 concentration just behind Pakistan
The temperature is expected to hover between seven and 22 degrees Celsius
On Tuesday also the pollution level of the national capital remained in the 'severe' category
As many as 34 trains are running late due to low visibility in the Northern Railway region
A study published last year in The Lancet journal found that one out of every eight deaths in India in 2017 could be attributed to air pollution
Delhi's overall air quality index (AQI) at 4 pm stood at of 163
Delhi, which received 33.5 millimetres of rain since Thursday, recorded a minimum temperature of 12.8 degrees Celsius
The air quality in Delhi bordered remained in the 'very poor' category for the eighth consecutive day
In the National Capital Region, Ghaziabad performed worst as its air quality index recorded 404
Indian studies have not shown a correlation between shortening of life and pollution, the Minister for Environment, Forest and Climate Change said.
Delhi's air quality drops to 'emergency' category first time since January
Stubble burning in Haryana and Punjab in October-November is considered one of the major reasons behind the annual episodes of smog in Delhi-NCR
Most of the 37 air quality monitoring stations in Delhi recorded AQI in the 'satisfactory' category. Pusa registered the best AQI of 64
The national capital and its suburbs recorded light rains on Wednesday. A few areas in the region also received hail
The bench observed the life span of millions of citizens has already been shortened due to pollution
On Wednesday morning, Delhi air quality index was 422 -- a little worse than Tuesday's AQI of 414 at 8 pm, according to the Central Pollution Control Board
The period between October 15 and November 15 is considered critical for Delhi-NCR's air quality due to stubble burning in neighbouring states and firecracker emissions on Diwali
Under the American system, only PM 2.5 values are taken to determine the level of pollution and the AQI number
In a series of newspaper advertisements, AAP said the pollution level dropped by 25% in 2016-18 over the period 2012-14.