PM 2.5
Mumbai Implements GRAP-4 Restrictions Despite Lower AQI Levels Than Delhi: A Comparative Analysis
Dec 01, 2025 12:43 pm CST
Mumbai has implemented GRAP-4 restrictions across multiple areas reporting 'very poor' and 'severe' air quality levels, despite having AQI readings significantly lower than Delhi. The BMC has halted construction activities, issued stop-work notices to 50 sites, and deployed enforcement squads across all wards to monitor compliance. This proactive approach contrasts with Delhi's implementation criteria, highlighting different regional approaches to addressing urban air pollution challenges.
Delhi's Cloud Seeding Trials Show Limited Success in Combating Air Pollution Crisis
Oct 29, 2025 02:18 am CST
IIT Kanpur Director Manindra Agarwal reports that Delhi's initial cloud seeding efforts were "not completely successful" due to low moisture content in clouds. While not a permanent solution to the city's pollution crisis, these trials showed some reduction in PM 2.5 and PM 10 levels in targeted areas. Additional flights are scheduled as authorities continue seeking emergency measures to improve Delhi's air quality.