The UK’s appalling summer of weather could have had an unexpected benefit for Olympic athletes and spectators – it could have delivered one of the least polluted Games in history, according to University of Manchester researchers.
 
Atmospheric scientists are piloting up to eight flights around London, which started in the past month and will continue over the coming weeks, to measure carbon monoxide, ozone, nitrogen dioxide and aerosol levels.  They found that the long periods of stormy weather and low pressure have resulted in excellent air quality.