Overall heat map

The overall layer shows the long-range air quality based on the period shown.

The leaf rating helps you benchmark and compare different locations.

It's not just a simple average. It's a view of the long term, taking into account general trends and local incidents that may have finished or could just be starting. For example, if a road is closed, the impact will be felt immediately and our scale and rating will reflect that. It's a more stable view of your surroundings to make the bigger decisions in life. If you're moving house or choosing a school for your child, one location, or regular commute, may be better than another.