Networks Welcome to the section providing information about the UK air quality monitoring networks.
There are over 1500 sites across the UK which monitor air quality. They are organised into networks that gather a particular kind of information, using a particular method. The pollutants measured and method used by each network depend on the reason for setting up the network, and what the data is to be used for. Automatic networks produce hourly pollutant concentrations, with data being collected from individual sites by modem. The Archive of data goes back as far as 1972 at some sites.