Serious industrial pollution will produce smog. What harm will smog do to human body? Is there any way to improve it?

With the deterioration of air quality, haze weather gradually occurs. At present, smog weather has appeared in many places in China, which has caused a lot of losses. What is the reason for the haze weather? What are the hazards of smog? What are the methods to prevent the harm of smog? I have sorted out the relevant information and will answer your questions in the article.

Smog/haze (Wü má i in English) is a combination of fog and haze. Haze is widespread in big cities. In many areas of China, fog is classified as haze as a disastrous weather condition for early warning information and weather forecast, commonly known as "haze weather".

Hazy weather refers to the atmospheric turbidity and blurred vision when the atmospheric air humidity is less than 80-90%. The low atmospheric visibility in this case is caused by a mixture of haze and fog, which is called haze weather, but this temperature is rare. Because the atmospheric humidity is between 80-90%, it is usually after rain, and the atmospheric dust will be excessively considered in rainy days. After the rain, there is generally less dust in the atmosphere and it is not easy to produce smog.

Reasons for the haze weather:

Fog refers to the natural phenomenon that the atmosphere is solidified by its floating water vapor. When the visibility is less than 1 km, the smog is mainly due to the fact that many particles floating in the air have the same benefits as meteorological elements. There are three reasons for the haze weather:

1. The static wind condition in the horizontal direction increases.

2. The inversion occurs in the vertical direction.

3. The rise of floating dust in the air.

With the increase of urban population and the development of industry, the surge of motor vehicles, the discharge of pollutants and the increase of suspended solids immediately reduced visibility. In fact, home decoration will also cause smoke and dust "smog", which will not only endanger the physical and mental health of employees and customers, but also increase the cleaning pressure. When the dust is serious, the return visit to the project decoration will produce these security risks.

In addition to meteorological factors, there are industrial production, motor vehicle exhaust emissions, heating and burning coal in winter. The increasing concentration of fine particles (including coarse and fine particles PM 10 and inhalable particles PM2.5) in the atmosphere is the main factor causing smog. At present, the pollutant discharge standards in many provinces are at the zero boundary point and are very sensitive to meteorological factors. It is more difficult for air quality to pass the heating standard. Once subject to bad weather standards, air quality and visibility will drop rapidly.

1. Haze to people's society 1. Harm to the body

Smog weather is harmful to the respiratory tract, which has become the common sense of most people. The respiratory tract contacts the external natural environment the most times, and the total contact area is relatively large. Hundreds of fine atmospheric particles can directly enter and attach to the upper and lower respiratory tract and right lung of human body, and most of them will be inhaled by human body. Secondly, the smog weather weakens the ultraviolet rays in the near-geological structure, which is very easy to promote the vitality of pathogenic bacteria in the air. Inhalable particles will "carry" bacterial and viral infections and rush to the deepest part of the respiratory tract, resulting in strangeness.

2. Sad blood vessels

The School of Public Health Services of Harvard University in the United States has confirmed that particulate pollutants will not only lead to myocardial infarction, but also continue to lead to insufficient blood supply or damage to the heart in painful days. More than 25,000 people suffering from heart disease or cardiovascular diseases were investigated in the United States, and it was found that the mortality rate of patients would increase by 10% ~ 27% when the PM2.5 increased 10mg/ m3.

3. Capillary injury

In foggy days, there are many pollutants in the air and the air pressure is low, which can easily cause the sudden onset of cardiovascular and cerebrovascular diseases. In the case of heavy fog, the water vapor composition is very high. When people exercise outdoors and do fitness exercises, sweat is not easy to be discharged, which leads to chest tightness, shortness of breath and high blood pressure. Moreover, the temperature is low in foggy days, so people must feel physically, and the blood pressure value will definitely increase to a certain extent. In addition, in rainy and foggy weather, the temperature is usually low, and some people will have high blood pressure. People with myocardial infarction suddenly come from a warm room to a hot outdoor, and the capillaries heat up and contract when they meet cold, which can also raise blood pressure, leading to stroke and myocardial infarction.

Harm the skin

Skin is also an inspiration. In a clean gas, the skin will be very comfortable and nourishing, but in a very dirty natural environment, the skin will be very uncomfortable.

5. Brain injury

Smog not only damages human organs, but also invisibly damages the central nervous system. Zhong Nanshan once introduced in detail that the 65th annual meeting of the American Geriatrics Association had a result. When PM2.5 in the air increases by 10mg/ m3, human brain function will age for three years.

2. Haze damages the natural environment 1. Harm to traffic.

Because of poor air quality and low visibility in foggy days, it is very easy for vehicles to collide, endangering normal traffic management and not changing everyone's traffic. When driving and walking, pay more attention to the road conditions and guard against risks.

2. Endanger daily life

Haze weather has caused great harm to roads, railways, aviation, shipping, power supply and distribution systems and food crop cultivation. Fog and haze will reduce air quality, endanger ecological environment protection and do great harm to health.