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<p>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.</p><p> </p>
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