Bengaluru sees sharp drop in pollution and noise this Deepavali

City records significant improvement in Air Quality Index and a decline in noise pollution, reflecting a greener and quieter festival compared to last year.

This Deepavali, Bengaluru residents breathed a little easier and enjoyed a quieter city as both air quality and noise pollution improved significantly compared to 2024. Data from the Karnataka State Pollution Control Board (KSPCB) shows a positive trend on the first day of the festival.

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On October 20, the city recorded an average Air Quality Index (AQI) of 77, nearly half of last year’s 153, indicating a 98% decrease in pollution levels. Monitoring stations at Hebbal, NIMHANS, and Silk Board reported sharp improvements, with AQI at the city railway station dropping from 130 to 104, NIMHANS from 121 to 44, and Hebbal from 263 to 74.

Noise pollution also saw a decline. On Sunday, the average ambient noise level in Bengaluru was 63.95 decibels (dB), down from 68.6 dB in 2024. By Monday, it further dropped to 63.5 dB, with stations at Basaveshwaranagar and BTM Layout reporting noticeable decreases, contributing to a calmer festive environment.

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Experts attribute the improved air quality and lower noise levels to restrictions on firecrackers, public awareness campaigns, and better compliance with safety guidelines. Residents celebrated the festival with less pollution and reduced urban noise, making this year’s Deepavali both cleaner and more eco-friendly.