What are the dangers of smog? What is smog? How does smog form?

What is smog?

Haze is a combination of fog and haze. Due to the deterioration of air quality, haze weather phenomena have increased and the hazards have worsened.

The formation of haze weather is caused by the following reasons:

1. The main factor is low atmospheric air pressure and stagnant air flow. Due to the stagnant air flow, tiny particles in the air gather and float in the air.

2. The ground is dusty and the air humidity is low. People and traffic on the ground stir up the dust.

3. Car exhaust is the main pollutant emission. In recent years, there have been more and more cars in cities, and the car exhaust is a factor in smog.

4. Secondary pollution caused by factories.

5. CO2 and other pollutants emitted by heating in winter.

What are the dangers of smog?

Hazy days also have a serious impact on human cardiovascular and cerebrovascular diseases. They can hinder normal blood circulation, lead to cardiovascular disease, hypertension, coronary heart disease, cerebral hemorrhage, and may induce angina pectoris, myocardial infarction, and heart failure. Failure, etc., causing chronic bronchitis to cause pulmonary heart disease, etc. In addition, when the pressure is relatively low in dense fog, people will feel irritable and their blood pressure will naturally increase. On the other hand, the temperature is often lower in foggy days. Some patients with high blood pressure and coronary heart disease suddenly walk from warm indoors to cold outdoors. The blood vessels expand and contract with heat, which can also increase blood pressure, leading to stroke and myocardial infarction. Therefore, patients with cardiovascular and cerebrovascular diseases must take their medicines on time and deal with them carefully.

Experts point out that continuous foggy days have an impact on people's psychology and body. Psychologically speaking, heavy foggy days can cause people to feel dull and depressed, and can stimulate or aggravate psychological depression. . In addition, due to the weak light and low air pressure caused by foggy days, some people will feel lazy and depressed in foggy days.

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