In a good news for citizens of Delhi, the month of March this year witnessed clean air as compared to last few years, Commission for Air Quality Management (CAQM) said here on Monday.

Aided by favourable meteorological conditions, efforts by various stakeholders in this direction have yielded positive results and such efforts would be continued in an endeavour to further improve upon the air quality scenario in Delhi in the coming days, it said.

The CAQM also said it is working closely with various stakeholders concerned to take effective measures for prevention, control and abatement of air pollution and to improve the air quality in National Capital Region (NCR).

Giving details of air quality, it said March experienced the best average AQI (Air Quality Index) at 170. The average AQI for the month of March during 2021, 2022, 2023 and 2024 was 223, 217, 170 and 176 in these years respectively.

The average AQI of Delhi for the quarter January-March, 2025 has also been the best during the last five years. The average AQI during this quarter stood at 231 in 2025 as against 250 in 2024, 240 in 2023; 241 in 2022, and 278 in 2021.

This quarter in 2025 did not witness even a single day with average AQI more than 400. There were 06, 01, 03, and 03 such days during years 2021, 2022, 2023, and 2024 respectively.

There have been 36 days where the average AQI of Delhi during the first quarter of 2025 was less than 200. This is significantly higher than 13 days in 2021, 27 days in 2022, and 35 days in 2023, CAQM said.