Air quality in the capital this August will be good enough for Olympians during the Beijing Games, the International Olympic Committee (IOC) said after a study by its medical commission.

"We find that the competitions, although not necessarily under ideal conditions at every moment ... will be good for athletes to compete during the Beijing Games," Arne Ljungqvist, chairman of the IOC's medical commission, said on Monday.

The commission studied and collected data on the city's air quality from an Olympic pre-run event last August.