Fog haze weather雾霾天气Fog haze weather雾霾天气.docVIP

Fog haze weather, causing a large area of low visibility condition in the city. In the morning or at night when relative humidity is larger, forming fog; Rising temperatures, humidity drops during the day, gradually into a haze. This phenomenon is due to weather and pollution emissions. Since January 9, 2013, the central and eastern regions in serious smog and pollution of the day, the national meteorological center to upgrade to the yellow fog blue warning alert, 13 to 10 Beijing released even when the weather first haze orange alert in Beijing, in mid-january, Beijings air pollution index is