
Mumbai's air quality has shown a marked improvement since November 26, owing to multiple pollution-control measures in the city and its suburbs, while show cause notices have been issued to 482 construction sites for violating pollution norms, the BMC said on Monday.
The civic body said 264 among the 482 construction projects have been served 'stop-work' notices.
"The show-cause notices have been issued to 482 construction sites across Mumbai for allegedly violating air pollution control guidelines and contributing to deteriorating air quality," civic officials said.
The Brihanmumbai Municipal Corporation (BMC) also clarified that the Graded Response Action Plan Stage-4 (GRAP-4), a set of tough restrictions aimed at curbing air pollution, is not applicable to Mumbai at present, though intensified monitoring has been instructed.
Municipal commissioner and BMC administrator Bhushan Gagrani has directed officials to continue taking strict action against private construction sites as well as government and non-government projects that violate the civic body's 28-point dust and pollution-mitigation guidelines, according to a release.
The BMC said the improved wind speed, along with enforcement measures such as notices to errant construction projects, misting, water sprinkling, road-washing, awareness drives, and moves by bakeries and crematoria to shift to cleaner fuels, have contributed to the improvement in AQI (Air Quality Index) over the past 48 hours.
The wind speed, which was 3-4 kmph before November 28 with high humidity, has now increased to 10-18 kmph, aiding pollution dispersion in the financial capital, the civic body noted.
The BMC has formed 94 ward-level flying squads to oversee the implementation of pollution mitigation measures. These teams are inspecting private sites as well as road and metro project stretches, issuing stop-work notices wherever violations are detected.
The squads are also checking sensor-based AQI monitoring equipment at construction locations, the release claimed.
AQI is a number used by agencies to show air pollution levels in an area. There are 6 AQI categories, which are good (0-50), satisfactory (51-100), moderately polluted (101-200), poor (201-300), very poor (301-400), and severe (401-500).
Mumbai's GRAP-4 rules mostly cover construction sites, small industrial units, and related activities.
(Except for the headline, this story has not been edited by NDTV staff and is published from a syndicated feed.)
A new study published in Science has challenged this view, suggesting the genetic contribution might be considerably higher.
Several parts of the national capital woke up to dense fog on Monday morning, with the Air Quality Index (AQI) remaining in the moderate to poor categories according to the Central Pollution Control Board (CPCB) data.
India's fight against toxic air just took a hit. The 2026-27 Budget allocated only Rs 1,091 crore to pollution control - down from Rs 1,300 crore last year.
Several parts of Delhi and the wider National Capital Region (NCR) witnessed light rain during the intervening night of Saturday and Sunday. The India Meteorological Department (IMD) has forecast a drop in the maximum temperature for today.
The air quality in Delhi has shown slight deterioration this January compared to last year, with the average Air Quality Index (AQI) till January 30 standing at 307, compared to 306 during the same period in 2025, according to an analysis
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