Damn haze weather

杨浦区凯慧中学初一（4）班徐懿森

　　Wish can get through this fog season in Shanghai, I think can definitely smog can be defeated．

　　 Above the fog weather in Shanghai, a piece of white, what also can't see.Everyone wears a mask, air quality monitor blew out two tables in two days, this is a very terrible thing, bronchial disease followed, hospital business is too hot. 　
Fog can affect the body health.Haze and fog, cloud, with no obvious boundary between sky area, haze particles distribution is more even, and the diameter of the ash haze particles are small, from 0.001 micron to 10 microns, the average diameter of about 1 to 2 micron, invisible to the naked eye of air floating particles.Because the particles such as dust, sulfuric acid, nitric acid haze, the longer light scattering wavelength is more, so look yellow or orange gray haze. 　小荷作文网 www.zww.cn
The influence of fog on the cardiovascular system.Haze weather pollutants in the air, air pressure is low, easy to induce acute cardiovascular disease.Such as heavy fog, the moisture content is very high, if people in outdoor activities and sports, the body's sweat is not easy to discharge, cause people bosom frowsty, increased blood pressure.. Haze weather can also lead to nearly stratigraphic ultraviolet weakened, activity of the infectious pathogen in the air, increase of infectious diseases. 　
Reduce because of the fog the sun, ultraviolet irradiation in children is insufficient, inadequate vitamin D in the body to generate, the absorption of calcium significantly reduce, serious can cause rickets in infants, children's growth to slow down. 　
Affect mental health.Heavy fog weather depression, due to weak light and easy to let a person produce mental laziness, depression, and pessimism, encounter something goes wrong and even easier to spin out of control.Influence of traffic safety.Low vision in haze weather, visibility, air quality is poor, easy to cause traffic jams, traffic accidents. 　
There are a lot of fog prevention method.For example: reduce go out, outdoor sports, close the window, pay attention to diet, road walk carefully. 　
Wish can get through this fog season in Shanghai, I think can definitely smog can be defeated. 　