This paper analyzes the influence of graphic weather patterns on the haze weather in central and eastern China, and advances some measures for preventing and controlling the haze weather in cities.

Material one? Haze is a weather phenomenon in meteorology, which refers to a large number of extremely fine dry dust particles such as dust, sulfuric acid, nitric acid and organic hydrocarbons floating in the air evenly, making the air turbid, blurring the field of vision and deteriorating visibility. When the horizontal visibility is less than 65,438+00,000 meters, the visual distance obstacle caused by this aerosol system composed of non-aqueous substances is called haze or haze. Smog weather will have a serious impact on people's health and traffic safety.

Material 2? 2065438+2004 65438+2004 A smog weather that affected central and eastern China and the weather situation at that time (as shown below). (1)(4 points) The smog distribution area is controlled (or influenced) by the high-pressure system, the airflow sinks, the atmosphere is stable, air pollutants are difficult to drift to the upper air, and are blocked at low altitude and near the ground (2 points); The horizontal pressure gradient force is small, and the wind force is small (or weak), which is not conducive to the diffusion and dilution of atmospheric pollutants (2 points).

(2)(6 points) Adjust the energy consumption structure and increase the proportion of clean energy; Strengthen enterprise supervision and reduce air pollutant emissions; Control automobile exhaust emissions and encourage people to travel green; Take dust suppression and dust reduction measures in urban construction; Expand the area of urban green space and wetlands. (If the answer is reasonable, each score will be 2 points ***6 points)