How polluted is my road?

You can use this map to see the levels of pollutants emitted by vehicles on different stretches of road in London. Pan around the map, or put in your postcode, to find where you live, work or study. Click on any section of road to see the exact quantities of pollution emitted each year, and the numbers of vehicles that travel on that stretch of road every day.

Map key

The amount of pollution is...






Also shown:

      Greater London boundary

      Congestion charge zone

Three things to look out for

These maps have a lot of information on them. To help you out, here are some pointers to the sort of information you can find.

Is it just central London?

If you pan around London you'll see lots of places with very high amounts of pollution. Look at Kingston and Wanstead, for example:

Kingston and Wanstead pollution

This suggests that the Mayor of London needs to apply clean air policies across the entire capital, not just central London. For example, his proposed Ultra Low Emission Zone will help people who live, work and study in Holborn and Mayfair, but it won't solve the problem for people in Kingston and Wanstead.

Are buses to blame?

Have a look at the roads in these two examples.

All traffic versus buses

By switching between total NO2 and just NO2 emitted by buses you can work this out. In this example the roads leading from this junction have similar levels of pollution from all traffic. Untick the 'NO2 box and tick the 'No2 (Buses) box' and you'll see that the road (Camberwell Green) going north from the junction shows quite a high amount coming from buses - over half of all NO2, in fact. By contrast, the pollution on Camberwell New Road (going west from the junction) looks very low for buses - they account for less than a third of the NO2 pollution on this road. You can click on the sections of road to check the exact values.

Are there more than 10,000 vehicles a day?

Scientific research suggests that living near roads travelled by more than 10,000 vehicles per day could be responsible for some 15-30% of all new cases of asthma in children, and a similar proportion of COPD (chronic obstructive pulmonary disease) and CHD (coronary heart disease) cases in adults 65 years of age and older.

If you click on a section of road you'll see lots of detailed information on the pollutants, plus the number of vehicle movements per day.

Ten thousand movements per day

In the example above, you can see that these people in Brent are living right alongside a section of the North Circular with over 62,000 vehicle movements a day!

What are the roads like where you live, work and study?