Delhi's Air Quality Improves Significantly from January to May 2026

Delhi experienced its lowest Air Quality Index (AQI) from January to May 2026 in eight years, except for the pandemic year 2020, according to the Commission for Air Quality Management (CAQM). The city recorded 75 'Good to Moderate' AQI days and an average AQI of 157 in May.

The capital city of India, Delhi, achieved a notable improvement in air quality from January to May 2026, marking the lowest average Air Quality Index (AQI) in eight years, with the exception of 2020, which saw a decrease due to pandemic restrictions. This was revealed by the Commission for Air Quality Management (CAQM) on Sunday.

Data shared by the CAQM indicates Delhi recorded 75 'Good to Moderate' days in terms of air quality during this period, surpassing the figures from previous years: 70 in 2025, and matching 75 in 2024. The average AQI during May 2026 was 157, affirming a positive trend in air quality improvement.