In addition to the PM 2.5 index, what other data in the smog is worthy of attention?

Is smog and PM2.5 the same thing, and how to protect it?

What is PM2.5?

People who know the number "PM2.5" for the first time may be ignorant, and they don't know what it means. In fact, PM is the abbreviation of English Particulatematter, which is changed from the initial letter to PM, which actually refers to particulate matter, while 2.5 represents the floorboard of solid particles or droplets with a diameter less than or equal to 2.5 microns in the air. Because the particles are relatively small, we can't see them with the naked eye. Maybe you still don't understand it well. 2. Here is an analogy for everyone. The diameter of human fine hair is generally 70 microns, which is nearly 30 times more than PM2.5. Do you have a general impression in your mind?

Where does PM2.5 come from?

The main components of PM2.5 are elemental nitrogen, organic carbon compounds, sulfate and nitrate. Others include elements rich in sodium, magnesium, calcium, aluminum and iron. And heavy metal elements such as lead, zinc, cadmium and copper. This is mainly caused by human pollution. Although spontaneous combustion can also produce PM2.5, the main source is human emissions, such as the combustion of coal, gasoline and diesel, and the combustion of garbage.

How did the sky smog appear?

In fact, large and small particles in the daily air will reduce daily visibility, but compared with coarse particles, fine particle PM2.5 has a stronger ability to reduce visibility. When visibility decreases, we will be blocked, blurred, unclear, etc. And it will also hinder the light irradiation.

Harm to human health?

Large particles are easily intercepted by the nose, throat and trachea, or excreted by the movement of villi. However, because PM2.5 is a fine particle, once it is inhaled from the respiratory tract, it will deposit in the human alveoli and then dissolve into the blood, causing blood poisoning and easily reaching the depths of the lungs. It will cause damage to the respiratory system and cardiovascular system, such as respiratory irritation, cough, dyspnea, exacerbation of asthma, arrhythmia, heart disease and so on.

Haze weather's harm to traffic safety?

When there is smog weather, due to poor air quality and low visibility, it is easy for vehicles to rear-end, which affects the normal traffic order and cannot change everyone's travel. Observe the road conditions in daily driving to avoid danger.

How to deal with smog weather?

1 Try not to go out: Because there are large and small particles in foggy days, which are seriously harmful to health, particles will stick to the respiratory tract after entering the body, causing bronchitis and pharyngitis. In particular, the elderly with relatively weak resistance and people with respiratory diseases should wear masks to protect themselves.

There should be a limit to morning exercises: many people are used to morning exercises, but the time is not very correct for the human body. Due to the air exchange environment in the morning, the air quality is very poor, especially in foggy days, the respiratory tract is easily stimulated, and it is easy to induce respiratory tract and cardiovascular and cerebrovascular diseases during exercise.

Do a good job of personal hygiene, wash your face and rinse your mouth after going out, and change clothes when going out to remove the residue of pollution.

4. Pay attention to diet:

Drink plenty of water to speed up your metabolism.

B In diet, we should try to avoid the intake of spicy food, and there should be as few people who like to eat hot pot in winter as possible.

C light diet, eat more fresh fruits and vegetables, tremella, pears, persimmons, lilies, radishes, water chestnuts and other lung-moistening foods.