Chief Minister Arvind Kejriwal has started tweeting daily updates on air quality in the city, with his Government shifting its focus to combat expected high levels of pollution during the winter months.

"Air pollution data for 21 Sep (safe limit in brackets)- AQI- 83 (0 to 50 - Good, 51 to 100 satisfactory) PM 10- 81 (0 to 50 good, 51 to 100 satisfactory) PM2.5- 31 (0 to 30 Good, 31 to 60 satisfactory)," Kejriwal tweeted on Tuesday.

The Chief Minister had started posting updates on air quality index (AQI) and particulate matter (PM) levels from Saturday.

He had also said that air quality in Delhi will start deteriorating from mid-October with crop residue burning and claimed that neighbouring states have not done anything to support farmers.

Kejriwal has been tweeting daily updates on air quality on his official handle.

"The move is indicative of the Kejriwal government's efforts to combat winter air pollution levels this year on a war footing by taking together all stakeholders, including people of the city as well as neighbouring states," said a government functionary.

The air quality tweets by the chief minister make people aware about the issue of pollution and emphasise the need for timely action to take the steps to check it, he said.

Delhi faces high levels of air pollution with onset of winters, the season coinciding with paddy straw (parali) burning in the fields in Punjab, Haryana and Uttar Pradesh.

The Delhi government is pressing for adoption of a biodecomposer developed by Pusa Institute and demanding that the Centre direct states to  support their farmers for using it.

Earlier, Kejriwal said that a third party survey by the central government agency WAPCOS has found that use of biodecomposer is effective in getting rid of crop residue and thereby prevent its burning by the farmers.