The harm of PM2.5 is actually the impact of particles on health. In essence, it is the impact of various chemical substances adsorbed on the surface of particles on health.

Harm 1: lead to heart disease and arteriosclerosis. As a small particle, PM2.5 is very easy to cause cardiovascular disease. Research data show that the more haze weather, the higher the incidence rate of heart disease.

Harm 2: lead to lung cancer or pulmonary sclerosis. As a particulate matter entering the lung, PM2.5 is also the first to be harmful to the lung. Even if we know what PM2.5 means, most people still ignore the small killer. These particles penetrate the nasal cilia in the nasal cavity, enter the lungs, and precipitate and accumulate in the lungs, resulting in pulmonary sclerosis and even lung cancer.

Harm 3. It leads to asthma or chronic bronchitis. With the increase of ultrafine particles and nanoparticles, some small bacteria enter the respiratory tract through nasal cilia, and then cause asthma and other respiratory diseases. This is also the reason why fog weather and asthma attack.

Harm 4. It affects fetal development. The data show that the higher the concentrations of PM2.5 and PM10, the higher the incidence of respiratory diseases in children and their parents, and the impact of PM2.5 is particularly significant.

Preventive measures;

1、 Less smoking, better not smoking, stay away from second-hand smoke

There are few windows in the haze weather, so you can raise some flowers and plants; With the use of air purifiers, 80% of the air purifiers on the market are mainly used to purify fine particles in the air, which have a good adsorption effect on PM2.5. However, the filter element should be changed frequently during use.

2、 Select the right mask

The blocking effect of ordinary masks is not good. The filtering effect of Green Shield masks in blocking inhalable particles such as coal dust, cement dust and acid mist is positive

3、 Make a cup of autumn and winter throat moistening tea

Experts pointed out that in the haze season, if you feel your throat is dry and cough, you can make your own throat moistening tea. Raw materials: 3 grams of Dendrobium, Lily and Ophiopogon japonicus, 2 jujubes and 2 crystal sugar. Usage: add 150ml of boiled water and take it. One material can be brewed 2-3 times. This tea can relieve the discomfort of the throat and reduce the harm of air pollution to the lungs.

4、 Drive less, stop in traffic jam, and avoid idling

Experts believe that automobile exhaust not only harms the people who have been around the road for a long time, but also harms the drivers themselves, especially when there is a long-term traffic jam and the gasoline cannot be completely burned. Therefore, it is better to drive less. It is better to turn off the engine and open fewer windows when there is a long traffic jam.

5、 Reduce indoor temperature in heated areas

Most areas in the north still rely on coal for heating. Coal pollution will not only bring sulfur dioxide, but also emit soot and increase inhalable particles in the atmosphere. Therefore, the heating should be controlled within 20 ℃.

6、 Go out and come back to the logistics department to wash your mouth and nose

Experts suggest that if you stay outdoors for a long time in heavy fog, you'd better wear a mask. When you get home, you must wash your face, hands and mouth in time. It is best to clean the nasal cavity with a cotton swab dipped in tap water or normal saline

7、 It is forbidden to burn garbage and withered grass and leaves in the suburbs without permission

Private incineration is the most convenient way for many farmers and enterprises to dispose of garbage. However, the dioxins, smoke particles and other toxic substances produced by burning privately will make the surrounding cities fall into a "toxic fog" unknowingly.

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