Haze weather hazards

The harm of smog mainly lies in that once inhaled from the respiratory tract, it will deposit in the alveoli of human body, and the smog deposited in the alveoli will dissolve and enter the blood, which will easily cause blood poisoning. The undissolved part is absorbed by cells, which is easy to destroy cells and cause pneumoconiosis. Other harmful substances contained in smog, such as sulfur dioxide, mainly stimulate people's respiratory tract and are more harmful to people. When the smog is severe, the pollutants and impurities in it can make people's central nervous system pathological changes, causing pulmonary edema or chronic bronchitis, especially when people inhale into the lungs, which can lead to emphysema and lung cancer. In addition, when the concentration of chemical smog in smog reaches a certain limit, it will cause harm to people's eyes and respiratory tract. When the concentration of carbon monoxide in smog is 900PPm, people will feel headache and dim their eyes when exposed to 1 hour. When the concentration reaches 1200PPm, people will be paralyzed when exposed to 1 hour, which is life-threatening. Carbon oxides in smog have a strong stimulating effect on people's eyes, nose and respiratory tract, and will destroy the functions of liver, stomach and cardiovascular system under certain conditions. In addition, cloudy days will also affect people's mood, because the weather is cloudy all day, the sun is dim, and the pineal gland in the human body will secrete more pineal hormone, which makes the concentration of thyroxine and adrenaline relatively low. Thyroxine and epinephrine are hormones that stimulate cells to work. Once reduced, cells will be "lazy" and become extremely inactive, and people will appear listless.