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空气中悬浮的颗粒污染物会对人体健康产生重要影响[1]。粒径大于50μm的颗粒物受重力作用会沉降到地面,小于10μm的颗粒物(PM10)可随着呼吸进入人体肺部。PM10引起的流行病研究表明,多种有机化合物如苯、二噁英、多环芳烃以及一些含有高毒性成分的金属如铅、镉会附着在颗粒物表面而进入人体,容易引起呼吸道感染、心脏病、支气管炎、哮喘、肺炎、肺气肿等多种疾病[2-4]。细小颗粒物对人体
Particulate matter suspended in the air can have a significant impact on human health [1]. Particles larger than 50μm in diameter will sink to the ground due to gravity. Particles less than 10μm (PM10) may enter the human lungs as they breathe. Epidemiological studies on PM10 have shown that many kinds of organic compounds such as benzene, dioxins, polycyclic aromatic hydrocarbons and some highly toxic metals such as lead and cadmium can adhere to the surface of particles and enter the human body and easily lead to respiratory tract infection, heart disease , Bronchitis, asthma, pneumonia, emphysema and other diseases [2-4]. Small particles on the human body