The "safeguards" requirement, 5 provinces and municipalities surrounding Beijing and the Olympic Games held in early, mainly in the dust, motor vehicles, industrial and coalburning pollution, air pollution has taken comprehensive measures. During the Olympics, Beijing has taken some odd and even number vehicles limit line emission limits and other measures of key enterprises, Tianjin and Hebei to take part

Bituminous Coal in the fight against pollution, automobile pollution, industrial pollution, dust pollution and the protection of ecology, the continuous implementation of control measures 200. Reduction of pollutant emissions from the adjustment of industrial structure and layout of start, Beijing has more than 200 heavily polluting the city’s overall relocation of enterprises changing products. Beijing’s air quality has improved for
9 consecutive years, compared with 2000, 2007, Beijing air quality up and the better is the number of days increased from 48.4 to 67.4. Improving air quality, scientific research and testing in 2007 on the basis of air quality, Beijing has joint and surrounding provinces, municipalities, Ministry of Environmental Protection, formulated "the 29th Olympic Games in Beijing air quality protection
Measures" (hereinafter referred to as "safeguard measures" ), and by the State Council. In 2008, requests approval of the State Council in Beijing, the fourteenth stage of the development of measures to control air pollution, air quality during the Olympics, Paralympic Games and the safeguard measures under extremely adverse weather conditions, emergency measures to control air pollution. In accordance with