Nitrogen Dioxide results

About the table

Nitrogen Dioxide results 12 month average to the end of June 2024.

Annulaisation for sites with less than 75% data capture, applied at the end of the calendar year. 

Assumes the same bias correction factor applied to the 2023 calendar year: times 0.81, referenced by the Naitonal Physical Laboratory for Gradko Laboratory.

All roadside AQMA Sites at Façade. Sample points at kerbside require end of year adjustement to compare against exposure standards in accordance with DEFRA guidance.

For Nitrogen Dioxide 2026 target 30 µg/m3,  2030 recommendation 20 µg/m3 as an annual average consistent with the European Parliament.