Mumbai's air gets hazy—tougher pollution rules may kick in

India Nov 24, 2025

Mumbai's been blanketed by thick smog lately, with the air quality index (AQI) hitting 188 on November 22 and dropping to 176 on November 23.
Visibility along the coastal road dropped, and several spots even recorded AQI above 200.
In response, city officials have sent stop work notices to 59 construction sites and ready-mix concrete plants.

What's causing all this smog?

Experts say La Nina is making things worse this year by slowing down winds and trapping pollutants over the city.
This weather pattern has led to more suspended particles in the air, which means persistent haze for everyone.
If things don't improve soon, Mumbai will roll out stricter anti-pollution measures under GRAP-4, including a full stop on construction and concrete mixing across town.