Peak daily pollution levels surged to two hundred sixty-one, marking the highest individual reading in five years.

Delhi recorded a dramatic shift in air quality during July, logging its worst average monthly pollution levels in seven years alongside a rare clean day. Analysis by the Center for Research on Energy and Clean Air showed an average index of 119 across thirty days.

This figure represents the highest July average since 2019, climbing significantly from last year's reading of seventy-eight. Prolonged dry spells throughout the current monsoon season allowed heavy vehicular emissions and airborne dust to accumulate across the city, reducing the purifying effect of intermittent rainfall.

Despite elevated overall monthly pollution, the capital city registered its cleanest day in nearly ten years when the index dropped to forty-eight. The single good air day matched clean air milestones last observed in 2017, demonstrating how heavy downpours can briefly cleanse urban skies.

Conversely, peak daily pollution levels surged to two hundred sixty-one, marking the highest individual reading in five years. Official tracking revealed fifteen moderate days, twelve satisfactory days, two poor days, and one good day, while completely avoiding the very poor or severe pollution categories.

Environmental experts noted that while total seasonal monsoon rainfall exceeded normal levels across major monitoring stations, extended dry periods between showers created stagnant weather conditions. These dry stretches allowed pollutants to build up, continuously driving up monthly pollution averages across northern urban regions today.