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Diffusion Tubes Data


Nitrogen dioxide diffusion tube data for monitoring locations within York - both inside and outside Air Quality Management Areas (AQMA), from 2005 onwards. Data is updated on annual basis in June.

Monthly values are raw data (not bias-corrected) and presented in ppb (parts per billion). Bias-corrected annual averages for each diffusion tube are presented in both ppb and ug/m3 (micrograms per cubic metre) and are only calculated where data capture is 75% or greater across the 12 month monitoring period.

A map displaying current locations for tubes can be found here.
For more information on AQMA please see this other dataset.
For air quality monitoring stations in York please click here.


Additional Info

Field Value
Author City of York Council - Business Intelligence Hub
Maintainer City of York Council - Business Intelligence Hub
UpdateFrequency Annual