Air pollution: Delhi revokes GRAP 4 restrictions, allows diesel trucks

The Delhi government on Saturday lifted Graded Response Action Plan (GRAP) Stage IV restrictions as air pollution reportedly witnessed a decline. Delhi's air quality improved from "severe" to "very poor," and diesel-powered trucks have also been allowed entry into the national capital. The air quality index (AQI) reduced to 317 at 4:00pm on Saturday from 405 on Friday, thanks to increased wind speeds. Surrounding cities like Ghaziabad, Gurugram, Greater Noida, Noida, and Faridabad reported "very poor" to "severe" AQI levels.