To put it simply, smog is a combination of fog and haze, and it is a disastrous weather phenomenon in which pollution particles and fog threaten human health. Haze is very harmful, and even a fatal blow to human beings. At present, the weather of smog is showing signs of getting worse. Fog is a non-toxic and harmless natural phenomenon. Haze is mainly the result of a large number of particles suspended in the air and meteorological conditions. Fog and haze often accompany each other. Smog weather is a disastrous weather phenomenon caused by air pollution. According to experts, smog contains more than 20 kinds of fine particles and toxic substances harmful to human body, including acid, alkali, salt, amine and phenol, as well as dust, pollen, mites, influenza virus, Mycobacterium tuberculosis and pneumococcus, etc. When these harmful substances are combined with fog, the sky will instantly become gloomy. PM2.5 (particles with aerodynamic equivalent diameter less than or equal to 2.5 microns) is considered as the "culprit" of smog weather.
Haze is no small hazard to pregnant women and children:
1. Respiratory hazards The main harmful micro-particles in smog, if inhaled directly, will harm the respiratory tract of human body, which will cause pneumonia, asthma, pharyngolaryngitis, rhinitis, ophthalmia and other diseases in the long run. The immunity of pregnant women and children is not as good as that of ordinary people, and they are easily invaded by these harmful particles.
2. Affect the growth and development of fetus and children. Haze often contains some allergic particles, heavy metal particles, etc. Excessive inhalation may induce poisoning, resulting in fetal dysplasia and even deformity. Studies in the United States show that babies born to pregnant mothers living in highly polluted environments lose 9% of their birth weight and 2% of their head circumference. Ultraviolet rays are the only way for the human body to synthesize vitamin D. Children can't grow up healthily without sunlight, and ultraviolet rays can also kill some bacteria. The appearance of haze and the decrease of ultraviolet radiation deprive children of this right.
3. Harm the heart. Smog usually has low air pressure, so it is easy to have chest tightness and tightness. Wet and cold fog will also cause cold stimulation, which will increase the heart load, etc.
4. Affect emotions. Whether adults or children, the mood may be affected by the weather. If the weather is cloudy all day, the human body will secrete more pinecone hormone, while the concentration of thyroxine and adrenaline will be relatively reduced. At this time, the cells will be "lazy", become extremely inactive and become unstable!
What are the precautions for smog?
We can't get rid of smog weather right away, but we need to know how to prevent smog hazards.
1. Less window opening in haze weather.
2. Planting green plants.
3. Clean the nasal cavity and mouth frequently.
4. Use air purifiers at home.
KJ750F-A05 purifier from Shanghai Air Purifier Factory can filter out some particulate matter in the air and improve indoor air quality. Has the functions of strong purification, in addition to formaldehyde, fog and haze removal, virus removal and peculiar smell removal. Multi-filter system, clean and upgrade. The first weight: primary filtration, a 60-mesh filter screen woven with black nylon thread, with an aperture of about 0.4mm, can filter large particles of pollutants such as hair, dust and dandruff; Second: HEPA layer can strongly absorb PM2.5 particles harmful to human body; Third: activated carbon layer: except for peculiar smell, formaldehyde pet smell and smoke smell, it can improve the purification effect in an all-round way.
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