India monthly ambient air quality snapshot: September 2025

By Manoj Kumar N and Nandikesh Sivalingam

With the monsoon season receding, the number of cities with ‘Good’ air quality in September declined



Monthly ambient air quality trends in India: September 2025 air quality snapshot (pdf version)

Data sources

Ambient air quality data recorded by Continuous Ambient Air Quality Monitoring Stations (CAAQMS) is downloaded from the ‘Central Control Room for Air Quality Management – All India‘ dashboard operated by the Central Pollution Control Board (CPCB).


Subscribe to India monthly air quality snapshot

* indicates required