Mr. SAM ATWOOD (Media Manager, Coast Air Quality Management District): And that is a very conservative calculation, actually.

NPR: L.A. Looks to Cut Smog with Leaf Blower Trade-In

Four years ago, Cotswold District Council made an Air Quality Management Area Order because the NO2 levels at the Air Balloon roundabout exceeded the recommended thresholds.

BBC: Google

The report's findings mean that the District Council will have to designate a formal Air Quality Management Area.

BBC: NEWS | UK | England | Devon | Town's air quality causes concern