Causes of smog:
Burning coal straw is also a reason why smog is easy to appear in winter in northern China.
Vehicle emission
Industrial waste gas emission was the main source of fog and haze in London that year.
All kinds of dust in life, dust floating in the air and water vapor will form smog.
Hazards of smoke:
1. It is harmful to the respiratory system and easy to cause acute rhinitis, bronchitis and possibly lung cancer.
2. Causing cardiovascular and cerebrovascular diseases, leading to cardiovascular diseases, hypertension, coronary heart disease and cerebral hemorrhage, which may induce angina pectoris, myocardial infarction and heart failure. And cause pulmonary heart disease in chronic bronchitis.
3. Affect male reproductive ability
Haze prevention and control: overall control depends on the state, but we must also have a sense of prevention.
1. appropriately reduce the time and intensity of outdoor sports.
2. Wear a mask when going out. It is recommended to buy many masks at a time. Cut one after two or three days and look at the filter element to judge the service cycle and effect of each mask.
3. Protect the lungs, eat more foods that moisten the lungs and drink more water.
4. Indoor air purification: The effect of air purifier is not very good. It's best to install a set of Haoting domestic ductless fresh air system in your own home. The pm value of the outlet can reach 0, and the pm value of the whole room is also between 7- 15, and the effect is very good.