Air pollution builds up in towns and cities where it can become trapped between buildings, especially in still weather. Levels of air pollution are generally higher during rush hours and close to busy roads . In more rural locations, levels of ozone increase during the afternoon, particularly in hot weather.​ ​
​
If you are sensitive to the effects of air pollution, it may be appropriate to limit the length of time spent in locations where peak air pollution concentrations occur. For instance, walking and taking exercise along back roads rather than beside busy roads will reduce your exposure to traffic pollution. ​ ​​
​
By changing your exercise routine you can reduce your exposure. For example, in summer it’s best to exercise in the morning when ozone concentrations are lower (note: the health benefit of exercise is generally thought to be much greater than the adverse health effects of air pollution).​ ​
​
How can I find out about local air pollution levels?​ ​
You can sign up to our free air quality alert service for Sussex: ​
​
The national Daily Air Quality Index has been developed to provide advice on expected levels of air pollution. The Index has four bands indicating the degree of air pollution and the health risk: https://uk-air.defra.gov.uk/air-pollution/daqi​ ​​
​
There are also things you can do to reduce pollution.