Diffusion tube data
Across Greater Manchester there is a network of 272 passive diffusion tubes, which collect data on nitrogen dioxide levels annually to supplement the automatic monitoring stations and to see whether we have met our air quality targets. You can find the results for each diffusion tube monitor by clicking on the stations below.
Latest diffusion tube data key
Rural background
Target achieved
Target not achieved
Suburban background
Target achieved
Target not achieved
Urban background
Target achieved
Target not achieved
Urban traffic
Target achieved
Target not achieved
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