Nitrogen dioxide (NO₂) concentration in the northeastern city of Kolkata averaged 49 micrograms per cubic meter of air (μg/m³) in 2021. Average NO₂ concentrations in Kolkata have fallen considerably since the early 2000s. Although the NO₂ concentration in Ahmedabad was lower than in other Indian cities in 2021, the sulfur dioxide concentration there was considerably higher.
Nitrogen dioxide (NO₂) concentration in ambient air in selected cities in India from 2001 to 2021
(in micrograms per cubic meter)
Characteristic
Ahmedabad
Bangalore
Chennai
Delhi*
Hyderabad
Kolkata
Mumbai
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MOSPI. (April 6, 2023). Nitrogen dioxide (NO₂) concentration in ambient air in selected cities in India from 2001 to 2021 (in micrograms per cubic meter) [Graph]. In Statista. Retrieved July 22, 2024, from https://www.statista.com/statistics/1284361/india-concentration-of-nitrogen-dioxide-by-city/
MOSPI. "Nitrogen dioxide (NO₂) concentration in ambient air in selected cities in India from 2001 to 2021 (in micrograms per cubic meter)." Chart. April 6, 2023. Statista. Accessed July 22, 2024. https://www.statista.com/statistics/1284361/india-concentration-of-nitrogen-dioxide-by-city/
MOSPI. (2023). Nitrogen dioxide (NO₂) concentration in ambient air in selected cities in India from 2001 to 2021 (in micrograms per cubic meter). Statista. Statista Inc.. Accessed: July 22, 2024. https://www.statista.com/statistics/1284361/india-concentration-of-nitrogen-dioxide-by-city/
MOSPI. "Nitrogen Dioxide (No₂) Concentration in Ambient Air in Selected Cities in India from 2001 to 2021 (in Micrograms per Cubic Meter)." Statista, Statista Inc., 6 Apr 2023, https://www.statista.com/statistics/1284361/india-concentration-of-nitrogen-dioxide-by-city/
MOSPI, Nitrogen dioxide (NO₂) concentration in ambient air in selected cities in India from 2001 to 2021 (in micrograms per cubic meter) Statista, https://www.statista.com/statistics/1284361/india-concentration-of-nitrogen-dioxide-by-city/ (last visited July 22, 2024)
Nitrogen dioxide (NO₂) concentration in ambient air in selected cities in India from 2001 to 2021 (in micrograms per cubic meter) [Graph], MOSPI, April 6, 2023. [Online]. Available: https://www.statista.com/statistics/1284361/india-concentration-of-nitrogen-dioxide-by-city/