Sources, Nature and Levels of Indoor Air Pollutants

摘要: There is increasing recognition that the indoor air environment may play a critical role in regard to scope of exposure an individual broad spectrum constituents (chemical, physical and microbial), number which, either individually or complex mixtures, are carcinogenic (e.g., radon-222, asbestos, formaldehyde, environmental tobacco smoke) have other toxicological significance [1–27]. This facet underscored by summaries human activity pattern studies which indicate that, over last 2 decades, individuals spend majority their time indoors. In modern industrialised societies, employed approximately 60% day at home, 30% work 5% transit [10,11].Typical figures spent indoors range from 60–75% [8,10–13], nearly 90% for men 95% homemakers [1,2,4,8–10,14]. Although there many different micro-environments such as offices, public buildings, schools, private vehicles transport, 75% home [4,8].