FIRST SUMMER SMOG WARNINGS OVER WEEKEND

FIRST SUMMER SMOG WARNINGS OVER WEEKEND

Warm, sunny, weather forecast over Southern England over the next few days is likely to lead to the first summer smog episode of 2007.

Moderate ozone levels are forecast from Saturday for south-east England and the Midlands.  On Sunday high ozone levels are likely to extend to the rest of England and Wales. These levels are likely to persist until at least Monday.

Some people are more sensitive to ozone than others and may begin to notice an effect on their breathing. People with asthma are not necessarily more sensitive but, if affected, can use their 'reliever' inhaler. The public are being urged to take sensible precautions:
Avoiding exercise outdoors in the afternoon can reduce exposure to ozone.
Avoiding making unnecessary short car journeys wherever possible can reduce the formation of ozone.

Ground level ozone is formed when sunlight acts on nitrogen dioxide and other atmospheric substances close to the ground. The pollutants that cause ground level ozone come from a range of sources, including petrol and other fuels.

During episodes of air pollution experienced during the summer in the United Kingdom, levels of ozone, nitrogen dioxide and particles may be raised. Most people will experience no ill effects. Those suffering from lung diseases (including asthma) particularly if elderly should be aware that their symptoms might worsen. They may need to consider modifying their treatment as they usually do when symptoms increase, consulting their doctor if this is not effective.

People who have noticed in the past that their breathing is affected on hot, sunny days should avoid strenuous outdoor activity, particularly in the afternoon. Children with asthma should be able to take part in games in the usual way, although they may need to increase their use of reliever medicines before participating. There is no need for them to stay away from school.

Those suffering from a heart condition and who notice a change in their symptoms should get medical advice as they normally would.

Download full details here (PDF)

Source: GNN/DEFRA