Beijing - Temporary measures designed to improve air quality for next month's Olympics have cut overall air pollution by about 20 per cent, Beijing officials said on Friday.
"I'm sure the effects have already been felt and are quite evident," Du Shaozhong, deputy director of the Beijing Environmental Protection Bureau, told reporters.
The aggregated level of major air pollutants such as carbon monoxide, carbon dioxide and particulate matter dropped this month by 20 per cent year-on-year compared with July 2007, Du said.
The city said it recorded 22 "blue sky" days in the first 25 days of July, and 13 more "blue sky" days year-on-year in the first six months of 2008.