On August 20th, Beijing put restrictions on factory production and car use. Effectively Beijing bans 2.5 million cars.
Five million cars were forced to drive on alternating days leading up to the 70th anniversary of Japan’s WWII defeat on September 3rd so that the city’s usually smoggy skies would be a picture-perfect blue.
The day after the parade, with the restrictions lifted, Beijing’s air quality index hit 160, a level at which “everyone may begin to experience some adverse health effects,” according to the U.S. Environmental Protection Agency.
“Military Parade Blue is gone; in its place is our ‘Normal Status Gray’” wrote one user online. While the LA Times cites several examples of such commentary on Chinese social media, CNN speculates that Chinese censors have actively removed similar posts from sites like Weibo.