To ask the Secretary of State for Transport, what type of measurements of air quality are taken along the A1 in Bedfordshire; in which locations those measurements are so taken; what recent assessment has been made of the air quality in those locations; and if he will publish the results of the measurements taken at each of those locations in each of the last three years.
A monitoring station that is part of the Department for Environment, Food & Rural Affairs (DEFRA)’s Automatic Urban and Rural Network (AURN) is located at the roadside alongside the A1, north-west of Sandy, Bedfordshire (52.132417, -0.300306). This monitoring site measures levels of nitric oxide, nitrogen dioxide, nitrogen oxides, PM10 particulate matter and PM2.5 particulate matter. The measurement data from this monitoring site is reported in near real-time and is updated every hour and is available online on DEFRA’s UK Air website. The monitoring site was compliant with air quality limit values for the past three years.