The average concentration of nitrogen dioxide (NO2) measured at roadside sites in the United Kingdom was 21.8 micrograms per cubic meter air (µg/m3) in 2023. NO2 concentrations plummeted more than 25 percent in 2020 as traffic levels dropped as a result of COVID-19-related lockdowns. Although NO2 concentrations rebounded in 2021, they have since continued to decline.
Annual mean concentrations of nitrogen dioxide (NO2) from urban traffic in the United Kingdom from 2000 to 2023
(in micrograms per cubic meter air)
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GOV.UK, & Defra. (April 30, 2024). Annual mean concentrations of nitrogen dioxide (NO2) from urban traffic in the United Kingdom from 2000 to 2023 (in micrograms per cubic meter air) [Graph]. In Statista. Retrieved December 23, 2024, from https://www.statista.com/statistics/1233189/roadside-concentrations-of-nitrogen-dioxide-uk/
GOV.UK, und Defra. "Annual mean concentrations of nitrogen dioxide (NO2) from urban traffic in the United Kingdom from 2000 to 2023 (in micrograms per cubic meter air)." Chart. April 30, 2024. Statista. Accessed December 23, 2024. https://www.statista.com/statistics/1233189/roadside-concentrations-of-nitrogen-dioxide-uk/
GOV.UK, Defra. (2024). Annual mean concentrations of nitrogen dioxide (NO2) from urban traffic in the United Kingdom from 2000 to 2023 (in micrograms per cubic meter air). Statista. Statista Inc.. Accessed: December 23, 2024. https://www.statista.com/statistics/1233189/roadside-concentrations-of-nitrogen-dioxide-uk/
GOV.UK, and Defra. "Annual Mean Concentrations of Nitrogen Dioxide (No2) from Urban Traffic in The United Kingdom from 2000 to 2023 (in Micrograms per Cubic Meter Air)." Statista, Statista Inc., 30 Apr 2024, https://www.statista.com/statistics/1233189/roadside-concentrations-of-nitrogen-dioxide-uk/
GOV.UK & Defra, Annual mean concentrations of nitrogen dioxide (NO2) from urban traffic in the United Kingdom from 2000 to 2023 (in micrograms per cubic meter air) Statista, https://www.statista.com/statistics/1233189/roadside-concentrations-of-nitrogen-dioxide-uk/ (last visited December 23, 2024)
Annual mean concentrations of nitrogen dioxide (NO2) from urban traffic in the United Kingdom from 2000 to 2023 (in micrograms per cubic meter air) [Graph], GOV.UK, & Defra, April 30, 2024. [Online]. Available: https://www.statista.com/statistics/1233189/roadside-concentrations-of-nitrogen-dioxide-uk/
