The average concentration of nitrogen dioxide (NO2) measured at roadside sites in the United Kingdom was 23.6 micrograms per cubic meter air (µg/m3) in 2022. NO2 concentrations plummeted more than 25 percent in 2020 as traffic levels dropped during COVID-19-related lockdowns. NO2 concentrations rebounded in 2021, but fell again in 2022. Roadside NO2 levels in the UK have decline almost 60 percent since 2000.
Annual mean roadside concentrations of nitrogen dioxide (NO2) in the United Kingdom from 2000 to 2022* (in micrograms per cubic meter air)
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Statistics
GOV.UK, & Defra. (April 27, 2023). Annual mean roadside concentrations of nitrogen dioxide (NO2) in the United Kingdom from 2000 to 2022* (in micrograms per cubic meter air) [Graph]. In Statista. Retrieved April 25, 2024, from https://www.statista.com/statistics/1233189/roadside-concentrations-of-nitrogen-dioxide-uk/
GOV.UK, und Defra. "Annual mean roadside concentrations of nitrogen dioxide (NO2) in the United Kingdom from 2000 to 2022* (in micrograms per cubic meter air)." Chart. April 27, 2023. Statista. Accessed April 25, 2024. https://www.statista.com/statistics/1233189/roadside-concentrations-of-nitrogen-dioxide-uk/
GOV.UK, Defra. (2023). Annual mean roadside concentrations of nitrogen dioxide (NO2) in the United Kingdom from 2000 to 2022* (in micrograms per cubic meter air). Statista. Statista Inc.. Accessed: April 25, 2024. https://www.statista.com/statistics/1233189/roadside-concentrations-of-nitrogen-dioxide-uk/
GOV.UK, and Defra. "Annual Mean Roadside Concentrations of Nitrogen Dioxide (No2) in The United Kingdom from 2000 to 2022* (in Micrograms per Cubic Meter Air)." Statista, Statista Inc., 27 Apr 2023, https://www.statista.com/statistics/1233189/roadside-concentrations-of-nitrogen-dioxide-uk/
GOV.UK & Defra, Annual mean roadside concentrations of nitrogen dioxide (NO2) in the United Kingdom from 2000 to 2022* (in micrograms per cubic meter air) Statista, https://www.statista.com/statistics/1233189/roadside-concentrations-of-nitrogen-dioxide-uk/ (last visited April 25, 2024)
Annual mean roadside concentrations of nitrogen dioxide (NO2) in the United Kingdom from 2000 to 2022* (in micrograms per cubic meter air) [Graph], GOV.UK, & Defra, April 27, 2023. [Online]. Available: https://www.statista.com/statistics/1233189/roadside-concentrations-of-nitrogen-dioxide-uk/