Haze Time 雾霾时代.docx

Haze TimeAbstract: This passage is mainly about haze, including the definition of haze, the causes of haze, hazards of haze and ways to control haze. And it introduced the details of haze from four parts above. Briefly, Haze, as the name suggests that, it is fog and haze. And two main points composed the causes of haze, which are human activities and climatic factors. Meanwhile, there are also two main respects of the hazards of haze, that is，the harm to the human body and the hazards on the environment and traffic. Therefore, governing haze cannot alone be the task of environmental protection departments but the responsibilities of all people. All of us are supposed to take actions to control haze and protect our family.As we all know, last year, many cities in our country especially some big cities, such as our nation’s capital Beijing, industrial city Tianjing and so on, were covered by haze, so we went into a Haze Time in 2014. Unfortunately, haze was not eliminated thoroughly, and this year 2015 we are still puzzled by haze and something that it brings to us. Therefore, it is necessary for all of us to know about haze, to be familiar with it and to do something to control it.I will introduce it from four parts: what is haze, the causes of haze, hazards of haze and ways to control haze. What is haze?Haze, as the name suggests that it is fog and haze. But there is a big difference between the fog and haze. Visual impairment caused by the composition of aerosol particles of dust in the air system, sulfuric acid, nitric acid called haze. Fog is an aerosol system which is composed of a large number of tiny water droplets or ice crystals in the air suspended near the surface. Fog and haze is a state air pollution, haze is excessive levels of suspended particulate matter in the atmosphere of a variety of general statements, especially PM2.5 (aerodynamic equivalent diameter less than or equal to 2.5 micron particles) is considered to be caused by haze weather culprit.