Beijing suffered sustained fog and haze weather causing serious deterioration of air quality in January 2003. With the approach of spring festival, in order to reduce the impact on air quality, whether setting off fireworks and crackers should be limited has aroused strong attention and heated arguments in society. The Beijing Specialized meteorological Observatory announced "meteorological index of fireworks and crackers" to the public via social media while fireworks and crackers started

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... ng on February 14 in Beijing. The Index was announced to public via service means during the spring festival and guided the citizens to reduce or stop setting off fireworks and crackers under the bad weather conditions,that was swiftly reported by numerous media and got good reviews. Under the strong advocacy of government and active support of the general public, the aim of reducing sell of fireworks and crackers, fire disaster and personnel casualties in Beijing has been achieved during the spring festival in 2013, and harmful effects on air quality has also been alleviated. The timely service of "meteorological index of fireworks and crackers" gained the approval of the leaders at all levels and a better social benefit.