What are the dangers of persistent haze weather?

1. Impact on the respiratory system. The composition of haze is very complex, including hundreds of atmospheric chemical particulate matter. Among them, the main ones harmful to health are aerosol particles with a diameter of less than 10 microns, such as mineral particles, sea salt, sulfates, nitrates, organic aerosol particles, fuel and automobile exhaust, etc., which can directly enter and adhere to the human respiratory tract and alveoli. middle. In particular, submicron particles will be deposited in the upper and lower respiratory tracts and alveoli respectively, causing illnesses such as acute rhinitis and acute bronchitis. For patients with chronic respiratory diseases such as bronchial asthma, chronic bronchitis, obstructive emphysema and chronic obstructive pulmonary disease, haze weather can cause acute attacks or exacerbations of the disease. If you stay in this environment for a long time, it can also induce lung cancer.

2. Impact on the cardiovascular system. There are many pollutants in the air and low air pressure in haze weather, which can easily induce acute attacks of cardiovascular diseases. For example, when there is heavy fog, the water vapor content is very high. If people are active and exercising outdoors, the body's sweat is not easily discharged, causing chest tightness and increased blood pressure.

3. Haze weather can also lead to the weakening of ultraviolet rays near the ground, which can increase the activity of infectious germs in the air and increase the number of infectious diseases.

4. Due to the reduction of sunshine in foggy days, children are not exposed to enough ultraviolet rays, and the production of vitamin D in the body is insufficient, and the absorption of calcium is greatly reduced. In severe cases, it can cause rickets in infants and slowed growth in children.

5. Impact on mental health. Due to the weak light and low air pressure caused by gloomy and hazy weather, it is easy for people to feel lazy, depressed and pessimistic, and even lose control when encountering unpleasant things.

6. Affect traffic safety. When haze weather occurs, visibility is low and air quality is poor, which can easily cause traffic jams and traffic accidents.