Delhi's air quality on New Year's Day 2026 was in the 'very poor' category with an AQI of 372, accompanied by dense fog reducing visibility. Several monitoring stations reported 'severe' or 'very poor' levels, with only one station showing 'poor' air quality. Despite the current conditions, Delhi saw a notable improvement in air quality in 2025, recording the lowest PM2.5 and PM10 levels in seven years and the highest number of 'good' and 'satisfactory' AQI days since 2018.