Overview

• Delhi’s air quality worsened to an AQI of 193 at 5 a.m. Saturday, up from 129 on Friday, according to the Air Quality Early Warning System.
• Mumbai recorded a citywide ‘moderate’ AQI of 139 Saturday morning, a day after the monsoon withdrawal was declared and several localities logged ‘very poor’ readings above 300.
• The Brihanmumbai Municipal Corporation placed its environment department on high alert, ordered daily AQI monitoring and deep cleaning drives, and moved to enforce AQI displays at construction sites.
• Lahore’s authorities forecast an average AQI near 165 with poor to unhealthy conditions through Friday, issuing advisories for children, the elderly and people with respiratory illnesses.
• Experts and officials cite weakening winds, cooler nights and persistent emissions from traffic, construction and industry, with warnings that some Mumbai days could exceed 350 AQI later this winter.