Winter alert several "bad weather"

HuoShouXi Anhui tongling municipal meteorological bureau

China's traditional Chinese medicine to

        Winter is the most significant weather characteristics is the temperature is low, people often pay special attention to the influence of low temperature cold health, little imagine, cold front transit, haze weather, freezing rain and snow "bad weather" to the health of human body and the negative effect is very big also.

        Cold front transit beware of lesions

        "Front" is a meteorological noun, specific it is to show the cold and warm air of the interface, and the interface is cold air driven (that is, cold air forces more powerful some). Cold front transit is a kind of weather mutation, main performance in air temperature, air pressure, wind speed, precipitation sudden change. According to the law of climate in China, the number of times all over the mainland a transit are many, time is very long, from spring to autumn, winter most frequently.

        Cold front transit effects on human health is very obvious, among them, the most sensitive to cardiovascular disease. When the cold front comes, in air temperature changes from high to low, wind turned from small to big transformation period, the heart attack is frequent, about half of the myocardial infarction and coronary heart disease patients, condition of different degree increase. Rheumatoid arthritis patients to cold front transit is relatively sensitive, about 75% of arthritis patients, in the cold front transit 12 hours before the pain began to strengthen, cold front through pain when the cold front through what, after the pain gradually subsided. In addition, bronchial asthma, pulmonary tuberculosis hemoptysis disease such as the front with the approximation and aggravate.

        Haze weather air pollution

        Haze and fog is very similar, difference is that the size of the water vapor content - when more than 90% of the water vapor content that fog, less than 80% that haze. Haze is suspended in the air by the smoke and dust or other small particles of the composition. Haze is air contamination of the product, to a health hazard. Because of the special small particles can be directly into human respiratory system, the lungs and blood, and cause asthma, lung cancer, cardio-cerebrovascular disease and other diseases. Haze days also can affect the person's mood, people often appear out of spirits.

        Especially, it is worth noting, haze formation and continuous, not only with the atmospheric environment on vertical distribution (winter inversion most easy to form haze), and local microclimate also very much to have the relationship. Experts study shows that in recent years, with the rapid development of urban construction, the building built is higher, increase the surface friction coefficient, the romantic city decreased significantly when. Calm wind phenomenon increased, against atmospheric pollutants to urban peripheral extended dilution, and easy in the accumulation of high concentration in pollution. This is to promote "haze" generation is not evanescent "LouOu small basin".

        Freezing rain is adverse to health

        Freezing rain, just as its name implies is rain and underlying surface or air object collision, immediately freeze at the surface of rain. The formation process of freezing rain, can use "freezing cold" to describe; Freezing rain after the formation of the picture, can use "glittering and translucent get rid of" to describe - branch, wire, spring... All exposed to outdoor things are a thick layer of ice package, is very beautiful.

        Freezing rain weather on human health is very bad. First of all, the formation of the freezing rain that nearly formation air temperature is lower than 0 ℃, the weather game cold, easy to cause respiratory and heart of ischemic cerebrovascular diseases. Freezing rain hit the landing face or hands, easy to direct cause frostbite. So, freezing rain weather occurs, must be prepared to warm warm work. Outdoor walk, want to wear a hat and gloves, wear in the outer layer clothes best with strong waterproof wind function. Secondly, freezing rain formed, the atmosphere is a temperature inversion with pollutant air upward diffusion "no way out," had to spread down, thus increasing the atmospheric pollution, make people the most easy to suction including PM2.5, tiny dirty particles.

        Snow to snow blindness

        Snow have many health benefits to human body, the folk have "snow is a good medicine" view, but can not be ignored the snow to healthy some adverse effect. Such as in the city, especially in industrial and mining cities, due to air pollution is more serious, in the process of formation and snow snow later, snow particle will absorb much pollution components, resulting in a similar acid rain "acid snow", people if drinking such "acid snow", can be directly aggravating illness in patients with asthma.

        Snow on health the most common influence is easy to cause the snow blindness, generally occur in fine columns, temperature is low during the day. The formation is the main reason of the ultraviolet rays in sunlight reflected by the snow to the human eye cornea, thus cause injury of cornea. Its symptoms are photophobia, tears, JiYang, tingling, edema, foreign body sensation, etc.

        In addition, the snow before the weather situation, general against pollutant emissions to high altitude, And after snow, generally greatly cooling (i.e., usually say "snow back cold"); Walking in snow is easy to fall down. Every this a variety of, to human body health is very bad.