We took our Smogmobile to Gloucester last Friday to measure air pollution around the local schools and major roads. Interestingly, we saw much higher levels of NO₂ on the drive back through Stroud than anywhere in Gloucester. An NO₂ concentration of 219 µg/m³ was recorded at the junction between Bath Road and Rodborough Hill in Stroud. This was far higher than any of the NO₂ measurements in Gloucester, which peaked at 143 µg/m³ on the A38/Cole Ave. junction, and supports our previous findings that air pollution in certain areas of Stroud can be worse than in Gloucester.