United Kingdom air quality today The AQI right now, city by city

Right now the 92 cities Airleaf measures in the United Kingdom average AQI 52 (moderate). The worst air is in Woking, at AQI 110, and the cleanest in Bradford, at AQI 6. At ground stations alone, which measure rather than estimate, the average is AQI 50 across 84 cities. 1% of the 92 measured cities are over AQI 100 today, where the air stops being fine for sensitive groups, and 41% have Good air.

Woking, at AQI 110 (Unhealthy for sensitive groups) on the US EPA index. Sensitive groups should limit long or intense outdoor activity.

Bradford, at AQI 6 (Good). Both lists rank current readings, from ground stations wherever the United Kingdom has at least three cities with one.

It depends on the city. 38 cities are Good, 53 cities are Moderate, 1 city is Unhealthy for sensitive groups. At the national average of AQI 52: Unusually sensitive people should consider limiting long outdoor exertion.

About 607,000 ha from 2001 to 2025, 17% of the forest it had in 2000, from the University of Maryland's yearly satellite maps of forest loss. 15,700 ha of it was cleared for good, for farms, mines or towns.

Woking, with 54.3% tree cover within 1.2 mi (2 km) of its center, measured from Sentinel-2 satellite images.

Each city's reading is the US EPA air quality index, from ground monitoring stations where one has reported recently nearby, and from the CAMS atmospheric model elsewhere; each city's report says which. the UK's Daily Air Quality Index is a different scale, explained on this page. Tree cover is measured over the same 1.2 mi (2 km) radius in every city, so the cities compare like for like.