What are the harmful factors for people in foggy weather

The smog weather cannot stop some sports enthusiasts. Although exercise is a good thing, it also depends on the specific actual situation. When there is haze, there will be small-diameter particles in the air, most of which are composed of chemical particles. When people exercise, their breathing rate and heart rate will increase, which will increase the number of haze molecules they inhale and cause harm to the body's respiratory organs, cardiovascular organs, etc.

1. Impact on the respiratory system.

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

2. Impact on the cardiovascular system.

Haze also has a serious impact on human cardiovascular and cerebrovascular diseases. It will hinder normal blood circulation, leading to cardiovascular disease, hypertension, coronary heart disease, cerebral hemorrhage, and may induce angina pectoris, myocardial infarction, heart failure, etc. In addition, the pressure is relatively low in foggy days, people will feel irritable, and their blood pressure will naturally increase. On the other hand, the temperature is often lower on foggy days. Some patients with hypertension and coronary heart disease suddenly walk from a warm indoor environment to a cold outdoor environment. The blood vessels expand as they get warmer and contract as they get colder, which can also increase blood pressure and lead to stroke and myocardial infarction. Therefore, patients with cardiovascular and cerebrovascular diseases must take medications on time and be careful.

3. Haze weather can also weaken the ultraviolet rays in the ground layer. Due to the reduced sunshine in foggy days, children are not exposed to enough ultraviolet rays, and the body does not produce enough vitamin D, which greatly reduces the absorption of calcium. In severe cases, it can cause rickets in infants and slow the growth of children. If conditions permit, you can use a negative ion vitamin C machine and open the windows less often in haze weather.

4. Affects mental health. Experts point out that continuous heavy fog has an impact on people's psychology and body. Psychologically speaking, heavy fog can make people feel dull and depressed, and can stimulate or aggravate the state of psychological depression. In addition, due to the weak light and low air pressure caused by foggy days, some people will feel lazy and depressed on foggy days.

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

Haze is more likely to cause cancer than cigarettes

Zhong Nanshan, an academician of the Chinese Academy of Engineering and director of the Guangzhou Institute of Respiratory Diseases, once pointed out at a forum that over the past 30 years, the smoking rate among the public in my country has continued to decline, but the incidence of lung cancer has increased by more than 4 times. This may be related to the increase in haze days. Not only will dense fog and extremely low visibility have an impact on human health, but weather that is sometimes foggy and sometimes cloudy will also have the same problem.