in recent years, our country many serious haze weather, the be the first to bear the brunt of the pollutant is PM2.5, and the health hazards of smaller size particles is not yet clear how. Research group in a northern city measurement of 0.25 to 10 microns (PM0.25 - PM10) number concentration range of 23 groups of different size particles, analyzed and compared their relationship with residents' health risk. The results showed that, the diameter of 0.25 ~ 0.5 micron range of particle number concentration and residents health hazard is most significant, and the smaller the particle size, the greater the harm to health.
Professor Yang Xinenvironmental science and Engineering Department of Fudan University said, when people breathe, larger diameter particles impact to people's nose, throat, and particles with smaller diameters will Shun Qi Liu, always enter the human alveolar, cause greater influence. Research group also found in the study, PM0.5 can increase the risk of cardiovascular disease people, said Kan Cheap NBA Jerseys Haidong, a fine particulates can penetrate the barrier of blood gas of the human body, into the circulatory system, thus affecting the entire cardiovascular system.
according to Kan Haidong, the atmospheric particles, PM0.5 is a large family, the quantity ratio of nearly nine into. According to preliminary observation research group, PM0.5 sources in addition to automobile exhaust, mostly from the volatile organic compounds, oxidized to form sulfate, nitrate. And the local atmospheric particulate composition, still need further analysis. The experimental results also show that the smoker, particles in most is PM0.5.
in the autumn and winter, gradually entered the period of frequent local air pollution, the research group of experts for the public health protection branch a few strokes, high pollution in time to minimize out, if unavoidable, Wholesale Soccer Jerseys should wash your face, in a timely manner mouthwash, cleaning out from the nasal cavity, remove the body attached with the pollution residues. Among them, the face is best to use warm water to wash face, particles. In addition to facial cleaning, the exposed part of the body should also pay attention to cleaning.
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