雾霾作为当今社会的热点话题之一，显然已经成为经济、环境失衡的主要代言。

Haze as one of the hot topics in today's society, economy apparently has become a major endorsement of environmental imbalance. Is not caused by a single factor atmosphere natural phenomenon, but at a relatively complicated weather conditions, various factors are superimposed results. "Haze" is not normally seen in the mist, but the polymer particles in the air of dust, sulfates, nitrates, hydrocarbons and other organic composition, which is a direct cause under certain climatic conditions, poor human activities result. In recent years, more and more cities have been plagued by smog, a sharp decline in air quality. As a famous tourist city of Xi'an is a notable example, the ancient capital of Xi'an is one of the world's top ten, rich in tourism resources, the Guanzhong Plain south of the Wei River. Over the years with the rapid development of urban industry, a large number of internal and external migration of population occur province, city economic development had been constrained by various factors. Xi'an haze associated with the occurrence of seasons, rainfall, wind direction, and other man-made factors, the urban people's lives, work had serious adverse effects. By terrain, season, production activity and other factors to understand the causes of haze in Xi'an comprehensive and effective governance.

As one of the hot topics in today's society, haze has obviously become the main voice of economic and environmental imbalance. It is not the natural phenomenon of the atmosphere caused by a single factor, but the result of the superimposing of various factors in relatively complex climatic conditions. "Smog haze" is not the usual fog, but is composed of airborne dust, sulfates, nitrates, organic hydrocarbons and other polymer particles, the direct cause is a specific climatic conditions, the adverse results of human activities. In recent years, more and more big cities have been plagued by smog and air quality has fallen sharply. Xi'an, as a famous tourist city, is a remarkable example, Xi'an is one of the world's top ten ancient capitals, rich in tourism resources, located in the south of the Weihe River on the Guanzhong Plain. Over the years with the rapid development of urban industry, a large number of people in and out of the province, the original economic development of the city is constrained by various factors. Xi'an haze along with the occurrence of seasonal, precipitation, wind direction, man-made factors, the urban people's lives, work has a serious adverse impact. Through the terrain, season, production, activities and other factors to understand the comprehensive causes of Si'an haze and effective management.

As one of the hot topics in today's society, haze has obviously become the main spokesman of economic and environmental imbalances. It is not the natural phenomenon of atmosphere caused by a single factor, but the result of superposition of various factors under relatively complex climate conditions. "Haze" is not a common fog, but is composed of dust, sulfate, nitrate, organic hydrocarbons and other polymer particles in the air. Its direct cause is the adverse results of human activities under specific climate conditions. In recent years, more and more big cities have been plagued by haze and the air quality has declined dramatically. As a famous tourist city, Xi'an is a remarkable example. Xi'an is one of the ten ancient capitals in the world, rich in tourism resources, located in the Guanzhong plain south of the Weihe River. In recent years, with the rapid development of urban industry, a large number of people have moved inside and outside the province. The economic development of the original city is restricted by various factors. With the occurrence of seasons, precipitation, wind direction, human factors and other factors, haze in Xi'an has a serious adverse impact on people's life and work. Through topography, season, production, activities and other factors to understand the comprehensive causes of haze in Xi'an and effective governance.<br>