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4h ago

Delhi AQI Peaks at 169, Highest Since June, Then Eases to 155

A dust-driven circulation during the monsoon transition signals a shift toward riskier weeks for the capital’s air.

Delhi's pollution on Saturday was largely due to the formation of a cyclonic circulation that pulled dust into the city.
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Overview

  • Delhi’s 24-hour average AQI reached 169 on Saturday, a 15-week high, before improving to 155 by 11 pm, according to CPCB data.
  • Friday’s reading was 120 and the city remains in the CPCB-defined moderate band following a largely cleaner monsoon period.
  • Meteorologists attributed the spike to a cyclonic circulation and a shift from dry westerlies to more humid easterlies that drew in dust and smoke, with stronger evening winds aiding partial cleanup.
  • IMD reported a minimum of 25.7°C and a maximum of 37.2°C on Saturday and forecast partly cloudy conditions with warm temperatures in the short term.
  • With the southwest monsoon withdrawn, experts caution that incoming northwest transport winds and early stubble burning in Punjab could drive a sustained decline in air quality in the coming weeks.