Delhi records cleanest October air quality in eight years

Delhi's air quality showed marked improvement in October 2026, with the average Air Quality Index (AQI) registering at 166—the lowest recorded for the month in the past eight years. This represents a substantial decline from October 2025, when the AQI had averaged 223.

Data from January through October this year indicates an average AQI of 167, demonstrating improvement over the same period in 2025, which had recorded 170. The figures suggest sustained efforts to combat air pollution in the capital may be yielding results as the year progresses.

The breakdown of air quality categories reveals 220 days fell within the "Good" to "Moderate" range throughout the period, while 84 days registered in the "Poor" to "Severe Plus" categories. The ratio indicates a positive shift in overall air quality patterns, though concerns remain during months typically associated with higher pollution levels.

Experts attribute the improvements to various factors including meteorological conditions and pollution control measures implemented across the National Capital Region. However, monitoring agencies continue to track air quality closely as winter months approach, traditionally bringing elevated pollution levels to Delhi.