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.
The main concern is ground level ozone. It forms from traffic fumes in sunny weather, and can cause breathing difficulties.
More top news
David and Samantha Cameron have been filmed speaking about their trips to hospital with son Ivan, in a rare move for the couple.
Rebecca Wooller and Blake Green decided there was no better place to say 'I do' than at the location of their first date.
A couple in North Tyneside have seen off an intruder believed to be armed with a machete.