Concentration of sulfur dioxide in India 2001-2021, by select city

Published by Ian Tiseo, May 2, 2023
Sulfur dioxide (SO₂) concentration in the northwestern city of Ahmedabad averaged 14 micrograms per cubic meter of air (μg/m³) in 2021. This was considerably higher than in other major Indian cities such as Bangalore, Chennai, and Hyderabad. SO₂ concentration in India's capital averaged 13 μg/m³ that year.

Sulfur dioxide (SO₂) concentration in ambient air in selected cities in India from 2001 to 2021 (in micrograms per cubic meter)

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Release date

April 2023

Region

India

Survey time period

2001 to 2021

Supplementary notes

* Delhi has an uninterrupted ambient air quality monitoring data from 2018 onwards.

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