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人们在室内环境中的生活时间约占全部时间的80～90％。与室外空气比较,室内空气更易遭受各种污染,且污染具有持续不断的影响因素,直接影响人体的健康。人们在被污染的空气环境里生活,会产生气闷、恶心、呕吐甚至更严重的疾病。因此,室内经常需要以换气的方式,由室内排出遭污染的空气,从室外输入新鲜空气。 空气被污染的类型主要为无机物和有机物污染两大类。常见的室内空气污染源有:人们的呼吸;生活用火的无烟囱煤炉、油炉和气灶;室内建筑材料(泥砖、混凝土等)的放射;
People live in the indoor environment for about 80-90% of their time. Compared with outdoor air, indoor air is more vulnerable to all kinds of pollution, and pollution has continuous influencing factors that directly affect human health. People living in a contaminated air environment can suffer from bloating, nausea, vomiting and even more serious illnesses. Therefore, it is often necessary for indoor ventilation to remove contaminated air from the room and to input fresh air from the outdoors. The types of air pollution are mainly inorganic and organic pollution. Common sources of indoor air pollution include: people’s breathing; chimney-free coal stoves, oil stoves, and gas stoves that use fires; radiation of indoor building materials (mud bricks, concrete, etc.);