雾霾的危害、雾霾的区别,如何防范（Haze hazards, haze difference, how to guard against）

雾霾的危害、雾霾的区别,如何防范（Haze hazards, haze difference, how to guard against） 雾霾的危害、雾霾的区别,如何防范(Haze hazards, haze difference, how to guard against) Haze hazards, haze difference, to prevent haze, wounding The haze is * * body suspended in the atmosphere of a large number of small dust particles, smoke or salt air and the level of visibility to a weather phenomenon below 10 km. Fog or haze is a kind of disastrous weather, which has an important influence on highway, railway, aviation, shipping, power supply system, crop growth and so on. Fog and haze can cause air quality to decline, affect the ecological environment, and bring great harm to human health. Fog, haze, weather, the proliferation of sulfur dioxide, carbon monoxide, nitrogen oxides and other substances toxic, harmful to human health. In the winter fog and haze in the air often with bacteria and viruses, easy to cause the spread of infectious diseases and many diseases in the city; air pollutants is not easy to cause the increase in atmospheric pollutants days, in some areas of China industrial area and the city center area such as fog and haze occurrence frequency and intensity of a gas, when the air serious pollution may form smoke (FOG) or black smoke and smog, a serious threat to human life and health. Guard against cloudy days and injure your health Since entering the winter, many provinces and cities and regions, days of gray sky, people feel oppressed and suffocated, people often call it "fog and haze" weather". In fact, fog and haze are not the same, compared to the haze is particularly harmful to human health. How to distinguish between fog and haze? Fog is a low layer of water vapor content of more than 90%, in the near ground condensation and become milky white clouds, mostly in the middle of the night to form, in the morning before sunrise, the most concentrated, gradually dissipated after sunrise. Haze, haze (Yan Xia), also known as the moisture content of less than 80%, is suspended by motor vehicle exhaust, dust particles in the atmosphere, such as sulfuric acid, nitrate particles, in the direction from north to south, low altitude inversion layer (on the warm cold stable layer), under the condition of no wind or breeze, become grey or orange yellow to the sky, compared with pure fog, "haze weather phenomenon" is the air is polluted and the emergence of. Haze days have several major harm to the human body 1, cause respiratory diseases. A bit strange, choking haze is a kind of malignant stimulation of the respiratory tract, make people have a runny nose, sneezing, coughing, choking, shortness of breath and other symptoms. Frail women, children and the elderly are susceptible to respiratory tract infections, and chronic bronchitis, COPD, and asthma often cause acute attacks. Because the haze contains particles carrying heavy metals, polycyclic aromatic hydrocarbons and other toxic substances, is the cause of lung cancer. 2, induced cardiovascular disease. When the haze weather, low air pressure, air pollution, and the oxygen content decreased, acid, amine, benzene and other toxic particles and microorganisms in the air, with the dry and cold climate caused by cold stimulation, easily lead to vasospasm and fluctuation of blood pressure, cardiac load, breathing difficulties, headache and other symptoms, to have cardiovascular disease patients are more easily induced hypertensive crisis one disaster after another, and acute myocardial infarction, arrhythmia and stroke complications and be harmful to life. 3, affect people's emotions. Not see the sun all day long shrouded haze weather, melatonin can make the brain more melatonin secreted by the pineal gland, excessive secretion of arousal can inhibit cell viability and encouraging the spirit of thyroxine and adrenaline, the body cells will become very lively, is to slow down the The new supersedes the old., who was unhappy, bored, tired, low-spirited sleepy, severe depression in the blues, will have the idea of suicide. 4, lead to calcium deficiency of the human body. The haze days would have blocked the sunlight, resulting in near surface ultraviolet radiation decreased, the human body cannot be skin 7- cholesterol synthesis of vitamin D, vitamin D deficiency, it will affect the body's absorption of calcium and phosphorus and the use of children, Yi Huan rickets, the elderly can aggravate osteoporosis. Three aspects of prevention haze day wounding 1. don't go out. People who love morning exercises and evening walks do not go out for sports when they are in a haze, Not in the city "small basin area" of the local play or stop to chat, to avoid inhaling more pollutants. Elderly, children, pregnant women, as well as cardiovascular diseases and respiratory diseases, more sensitive to pollution, it is best not to go out activities. If you want to wear a mask when you go out, you can reduce the irritation of dirty air to the respiratory tract. 2. close doors and windows to see the weather. In cloudy days, doors and windows should be closed to prevent foul air from entering the room. When the haze cleared or sunny days should open the window for ventilation, to keep the room clean air. 3. reasonable dietary nutrition. To ensure a balanced and reasonable diet, eat more animal liver, egg yolk, carrot, white radish, green vegetables, fruits, cereals and other foods rich in vitamins and minerals, daily drink boiling water, can accelerate metabolism, promote the excretion of body wastes and toxins, maintaining the balance and stability of the internal environment and the trachea and keep the throat and lungs normal moisture, enhance the ability of respiratory dust and anti infection ability.