Archive · 2 Dec 2025
Mumbai Enforces GRAP IV Amid Rising Pollution
Mumbai's air quality has been getting worse, so the city's government has decided to take strong action.
They are shutting down construction sites because they make a lot of dust and pollution.
The air quality has been going up and down, with some areas having very bad air.
Experts say that the weather and winds are also making the problem worse.
The city is trying to fix this by using cleaner fuels, more electric buses, and spraying water on roads to keep the dust down.
The BMC has also sent notices to many polluting sites to follow strict rules.
Last year, similar measures were briefly used when pollution levels spiked in certain areas.
The BMC has also started sending notices to big infrastructure projects like the bullet train project at Bandra Kurla Complex for not following dust rules.
They are checking all construction sites to make sure they have sensors to measure air quality and are following the rules.
Some projects say they are already following the rules and have taken steps to control dust.
BMC enforces GRAP IV, the most severe anti-pollution controls, due to dipping air quality.
Construction activities are a major source of air pollution in Mumbai.
Recent AQI spikes in areas like Mazgaon have reached 'poor' levels.
BMC implements measures like cleaner fuels, electric buses, and dust suppression.
Experts attribute pollution to construction, weaker sea breeze, and seasonal winds.
- Who
- Brihanmumbai Municipal Corporation (BMC)
- What
- Enforcement of Graded Response Action Plan (Stage IV) and issuance of notices to construction projects for flouting dust mitigation norms
- When
- Immediate, following recent AQI fluctuations
- Where
- Mumbai, India
- Why
- To address severe air pollution and public health risks
BMC
Construction Projects
Dust Mitigation Compliance
BMC
BMC insists on strict compliance with dust mitigation norms, issuing notices and 'stop work' orders to non-compliant sites.
Construction Projects
Construction projects argue they are following procedures, with NHSRCL claiming 85% of excavation work is complete and dust control measures in place.
- AQI
- 113 (moderate), with pockets reaching 'poor'
- Major Pollution Source
- Construction activities
- Recent AQI Spikes
- Mazgaon: 305 (poor) on November 11th and 24th
- BMC Measures
- Shutting down construction, cleaner fuels, electric buses, dust suppression
- Expert Insights
- Weaker sea breeze circulation, temperature inversion, seasonal winds
- Construction Sites with Sensors
- 778 out of 2,000
- Active Sensors
- 309
- Inactive Sensors
- 97
Sources
Mumbai pollution: BMC imposes GRAP IV as air quality dips
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