The monitoring programme (known as AQMN Work Package 1 (WP1)) has been running for over 30 months, with monitoring currently undertaken across 400+ sites, across 71 stations nationwide. Monitoring across most sites commenced in January 2022, with the project expected to run for three years and beyond.
Monitoring was successfully installed at 105 stations at the end of 2021; in early 2023 a number of stations (40) were removed from the network, and a few added (including nine stations across Scotland), bringing the total number of stations within the network to 71. The stations currently involved in the monitoring programme span as far north as Inverness, east as far as Norwich, south as far Penzance and west to Holyhead. Monitoring was set up at a variety of location types including platforms, concourse and waiting areas and background sites, to help build a better understanding of existing air quality at GB rail stations.
For the successful running of the monitoring programme, Air Quality Consultants trained local rail staff on how to undertake the monthly changeover of tubes. Over the last 30 months a dedicated team of staff have been communicating with stations and the laboratory who provide and analyse the tubes, to ensure high quality in the monitoring dataset. This has involved ensuring the sites themselves remain in good condition and that the tubes are being deployed correctly, ensuring equipment arrives at the stations on time for the agreed changeover dates, that changeovers happen on time, and that records are completed correctly and returned to the laboratory for analysis. Alongside this, AQC has undertaken a preliminary validation of the monthly results, which have then been processed, analysed and reported for the 12 months of data received for each 2022 and 2023.
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