Soaring temperatures prompt pollution warning

Several days of hot weather mean London is facing an inevitable rise in air pollution as the Olympics get underway. The latest forecast shows pollution levels will be at moderate levels over the next 24 hours in London. The situation is expected to remain unchanged over the next few days.

Sun rises over central London
Sun rises over central London Credit: Press Association

The main concern is ground level ozone. It forms from traffic fumes in sunny weather, and can cause breathing difficulties.

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Britain basks in hot weather

Britain is set to bask in more sunshine in the coming days as temperatures soar above 30C.