When smog hits, are you ready to use activated carbon masks?

PM2.5 is mainly formed by exhaust gas emitted from automobile exhaust, chemical industry, etc. Activated carbon can filter dust particles smaller than 2.5 microns, while also adsorbing toxic substances such as phenols, benzenes, organic chlorine, automobile exhaust, etc. The mask can not be reached. Therefore, we must use activated carbon mask - Zizhu card (health protection expert)

In recent years, there have been severe hazy weather in many places in China, affecting people in all aspects of life. The most serious hazard is the harm to human health.

Induces respiratory diseases. The composition of the haze is very complicated. There are hundreds of particles in size. These particles are breathed by the human body and enter the respiratory tract, causing respiratory diseases such as tracheitis and asthma.

First, haze damage to people

1, lung injury

Haze has the greatest impact on the respiratory system, which has become the consensus of most people. The respiratory system is most in contact with the external environment and has a large contact area. Hundreds of atmospheric particles can directly enter and adhere to the upper and lower respiratory tracts and lobes of the human body, and most of them are inhaled by the human body. Secondly, smog-like weather causes the ultraviolet radiation in the near-surface layer to weaken, which can easily increase the activity of bacteria in the air. Fine particles can “bring” bacteria and viruses to the depths of the respiratory system and cause infections.

2, hurt the heart

The Harvard School of Public Health has shown that particulate contaminants in haze days not only cause myocardial infarction, but also cause myocardial ischemia or injury. The United States investigated 25,000 people with heart disease or poor heart and found that when the PM2.5 was increased by 10 μg/m3, the patient mortality rate would increase by 10% to 27%.

3, injured blood vessels

There are many pollutants in the air and the air pressure is low, which easily induces acute attack of cardiovascular diseases. When the fog is large, the water vapor content is very high. When people are outdoors and exercise, sweat is not easily discharged, causing chest tightness and high blood pressure. Moreover, the heavy fog has a relatively low pressure, and people will have a feeling of irritability and blood pressure will naturally increase. In addition, the foggy days are often low temperatures, some high blood pressure, coronary heart disease patients from the warm room suddenly went to the cold outside, blood vessels thermal expansion and contraction, but also can increase blood pressure, leading to the occurrence of stroke, myocardial infarction.

4, hurt the skin

The skin also has respiratory function. In the clean air, the skin will be comfortable and moist, but if in a dirty environment, the skin will be very uncomfortable.

5, hurt the brain

Haze not only damages the organs, but also affects the nervous system invisible. Zhong Nanshan once said that there will be conclusions in the 65th Annual Geriatric Medicine Congress in the United States that the PM2.5 in the air will increase by 10 micrograms/cubic meter, and human brain function will be three years old.

6, injury genitourinary system

The effects of haze on semen quality are mainly manifested in the later period. The inhalable substances in the smog enter the body's blood circulation and gradually accumulate in various organs of the human body, including the scrotum of the semen factory. In addition, since the genitourinary system is the most rapidly metabolizing tissue in the human body, the genitourinary system is the first to be affected when particles inhaled from the outside enter the body's blood circulation, which can cause some diseases of the genitourinary system, such as renal failure and uremia. , less refined, abnormal sperm, prostate hyperplasia.