53 out of our 56 diffusion tubes were still in place at the end of the monitoring experiment and the results can be seen below. Our readings were bias-adjusted down to 83% of measured μg/m3, as recommended by the analysing laboratory.
Readings above 40 μg/m3 are in breach of EU air quality regulations.
The full data are also available as an Excel spreadsheet below.
Individual details from all of our monitoring locations are available from the links below or by clicking the point on the map above.