Are there any dataset that monitor average NO2 pollution of cities over time? CAMS released one[1], but it's not updated any more. [1] https://github.com/Coper

Are there any dataset that monitor average NO2 pollution of cities over time? CAMS released one[1], but it's not updated any more. [1] https://github.com/CopernicusAtmosphere/air-quality-covid19-response https://github.com/CopernicusAtmosphere/air-quality-covid19-...