Which is more harmful, sandstorm or smog?

Sandstorm and smog are common weather in northern China, especially in autumn and winter. These two kinds of extreme weather will do great harm to human body. At the same concentration, the harm of coarse particles to human body is much less than that of fine particles, so if the concentration of sandstorm and smog is equal, the harm of smog to human body is greater.

1. Hazards to human body When sandstorms endanger people's health, they mainly have acute physiological and psychological effects, because the main components in sandstorms are soil and yellow sand, and the particulate matter in the soil will increase the content of PM 10 in the air. PM 10 will be discharged through sputum after entering the human respiratory tract, and there will be some fluff in the nasal cavity to block the sandstorm. The particles in sandstorm are all large particles, which will mainly affect the bronchus of human body, and may probably lead to acute bronchitis and acute bronchial asthma, which will have a fierce psychological and physiological impact on human body.

Second, the harm of smog to people The main component of smog is that the harm of smog to human body is chronic, and the harm to human body and psychology is slow, but the consequences are more serious, because the particles in smog weather are very small and almost invisible, but these tiny particles can directly enter the trachea and bronchus of human body without knowing it, and even directly reach the lungs of human body. Some small particles in the smog will stimulate the respiratory system of the body, which may lead to infection, bronchitis and pneumonia. If an asthmatic patient already has asthma, it will make the condition worse. Haze weather is equivalent to a kind of air pollution, so it is very harmful to people, which may lead to lung cancer or other chronic heart and lung diseases, increasing the risk of death.

Third, conclusion No matter what kind of weather, it is very harmful to human body, but relatively speaking, smog is even more terrible, because the harmful substances in smog are invisible to human eyes and are accidentally inhaled into the body. Therefore, in this bad weather, everyone must wear masks when going out, and open the window less in foggy days.