How to deal with smog weather? What is the harm to human body?

In recent days, the weather in Nanjing and Wuhan is mainly caused by the burning of straw in summer, and the meteorological conditions such as still wind and low pressure are not conducive to the spread of pollutants. The superposition of the two factors leads to a large accumulation of smoke and dust, resulting in long-term, large-scale and serious smog pollution.

In smoggy weather, the concentration of atmospheric particulate matter is high, in which PM2.5 accounts for a large proportion. The surface of particulate matter is rich in a large number of toxic and harmful substances, which can directly enter the human body through the respiratory system and attach to the upper and lower respiratory tract and lungs. In particular, submicron particulate matter will be deposited in the upper and lower respiratory tract and alveoli respectively, causing rhinitis, bronchitis and other diseases and inducing respiratory diseases. If left in this environment for a long time, it will also induce lung cancer. In addition, smog weather will lead to the weakening of ultraviolet rays in the near-surface layer. Because ultraviolet rays in sunlight are the only way for the human body to synthesize vitamin D, the weakening of ultraviolet rays directly leads to the high incidence of rickets in children. At the same time, ultraviolet light is also the main weapon to kill atmospheric microorganisms such as bacteria and viruses in nature. The reduction of ultraviolet rays can easily enhance the activity of infectious bacteria in the air and increase infectious diseases. In addition, whether the gray weather is easy to cause pessimism, if it is not adjusted in time, it will easily affect mental health.

Affect natural and agricultural ecosystems. Smog absorbs and scatters sunlight, which leads to the weakening of solar radiation intensity and the reduction of sunshine hours, thus affecting the respiration and photosynthesis of plants, which can lead to the reduction of agricultural production and the obstruction of the growth of green space ecosystem.

In addition, smog reduces visibility, which will directly affect the traffic safety of land, sea and air.

Therefore, there are elderly people at home, and children must take protective measures and try not to travel. If you travel, please bring protective equipment such as masks. Close the doors and windows, and use air purification equipment if family conditions permit. Among them, negative ion air has the best effect, which can effectively remove smog pollutants in indoor air. Blue is a good brand. I suggest the landlord have a look. Friends who have morning exercise habits should pay more attention, otherwise toxic and harmful particles will be inhaled into the lungs, affecting their health.

Some medical experts suggest that you must do three things when you go home: wash your face, rinse your mouth and clean your nose to prevent the harm of smog to the human body. It is best to wash your face with warm water, which can effectively clean the smog particles attached to the skin; The purpose of mouthwash is to remove dirt attached to the mouth; The most important thing is to clean the nasal cavity. Many people don't know how to clean up. We will teach you a simple and easy-to-learn method: after washing your hands, hold warm water, gently absorb water through your nose and blow your nose quickly. Repeatedly, the dirty things in the nasal cavity will be cleaned up. It is worth noting that when cleaning the nasal cavity, you must gently absorb water to avoid coughing. When cleaning the child's nasal cavity, parents can repeatedly wash the clean cotton swab with water.