雾霾对我们的影响和危害 英语作文演讲稿含中文 关于雾霾天气的英语作文，带来的危害及政府的措施
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Affect the ecological environment.
Smog weather has an important impact on roads, railways, aviation, shipping, power supply systems, and crop growth.
Fog and cockroaches will cause a decline in air quality, affecting the ecological environment and causing greater harm to human health.
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Affecting human cardiovascular and cerebrovascular diseases
The effect of smog on the cardiovascular and cerebrovascular diseases of the human body is also very serious.
It will hinder the normal blood circulation, leading to cardiovascular disease, hypertension, coronary heart disease, cerebral hemorrhage,.
It may also induce angina pectoris, myocardial infarction, heart failure, etc., so that chronic bronchitis Pulmonary heart disease and other symptoms.
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Not conducive to the growth of children.
Due to the reduction of sunshine in foggy days, children's ultraviolet radiation is insufficient.
And the production of vitamin D in the body is insufficient, and the absorption of calcium is greatly reduced, which may cause rickets in infants and slow growth of children.
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Affect traffic safety.
In the smog weather, due to poor air quality, visibility is low, traffic congestion is likely to occur, and traffic accidents occur.
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Increase the probability of suffering from infectious diseases.
The haze weather can also cause the weakening of the ultraviolet rays in the near-surface layer, which increases the activity of infectious bacteria in the air and increases the number of infectious diseases.
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The environment around us has suffered serious damage, take recently around the fog haze weather.
On January 28, China's central and eastern regions in a broad range of haze weather, the ash haze area exceeds 100 square kilometers. The national meteorological center outside the fog warning, also issued a haze of blue warning signal
Is that when the haze of relative humidity is not big, and the relative humidity in the fog is saturated (such as the presence of a large number of condensation nuclei, relative humidity 100% saturated) may appear not necessarily.
Haze weather graphic symbol average relative humidity is less than 80% when the atmospheric turbidity of blurry vision led to the deterioration of visibility is caused by haze, when relative humidity is more than 90% of atmospheric turbidity blurry vision led to the deterioration of visibility is caused by fog, when relative humidity between 80-90% of atmospheric turbidity blurry vision led to the deterioration of visibility is caused by a mixture of haze and fog together, but its main component is haze. The thickness of the haze is thick, up to 1-3 km. Haze and fog, cloud, with no obvious boundary between sky area, haze particles distribution is more even, and the scale of the ash haze particles is 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.
Haze formation has three elements: one is the physical base of granularity dust generated source. Our country has the world's largest in loess plateau area, the soil texture are the most easy to granularity dust particles. The second is movement caused by dust. The middle of the road, for example, flower beds and street after rain or water in the soil of the road opposite sides-to hold if any mud flow to the road, an hour after drying, was the wheel a spin can cause a lot of dust, even if the particulate material falls back to earth, also can by car drove by, was once again to the city. Three is the difference in dust source and movement process of concentration within a certain space, TB gathered into a haze particles with water molecules. Now, more than 350 cities in flat loess plateau region in our country, the fog haze of the three elements of structure quite abundant stocks.
My friends, the earth would damage like this? What's the reason to continue to be broken? Let's take action together to protect our earth.
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雾霾原因
This kind of air pollutant come from avariety of natural and manmade sources.Natural sources can include windblowndust,and soot from wildfires.Manmade sources can include motor vehicles,andindustrial fuel burning,and manufacturing operations.The one of the maincause that touches off haze is manufacturing operations.Many factories wereover measure produced the smog that had over the standard and the smogseriously influence the air become air pollution.
雾霾危害
The components that make up haze may havenegative effect on people's health especially that of the children and theelderly.Also not excluded are those who have certain diseases such as asthma,allergy,and pneumonia and lung disease.Workers working in the open air have ahigh risk in their health.
解决方法
Oneof effective solutions to help eliminate haze is to make some chemistry changesduring the manufacturing process,so it could reduce harmful emissions which areproduced by manufacturing operations
雾霾是空气污染混合了灰尘，烟雾和其他干颗粒，它掩盖天空的清晰度与自然环境。
雾霾原因
这种空气污染物来自各种自然的和人为的来源。自然源包括扬尘和煤烟，野火。人为来源可以包括机动车辆，工业燃料的燃烧，和制造业务的一个主要原因。触动了烟雾是制造业务。许多工厂产生的烟雾，有人测量过标准和smogseriously影响空气成为空气污染。
雾霾危害
让阴霾的成分会造成负面影响对人们的健康尤其是儿童和老年人。也不排除是那些有某些疾病如哮喘，过敏，肺炎和肺部疾病。在露天作业的工人对他们的健康有很高的风险。
解决方法
一个有效的解决方案，以帮助消除雾霾是使一些化学变化制造过程，从而减少有害气体排放，生产的制造业务
(温馨提示：出行戴京@东有美国进口普卫欣可以减少雾霾吸入)
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