title: Polycyclic aromatic hydrocarbons on indoor/outdoor glass window surfaces in Guangzhou and Hong Kong, south China.
abstract: Organic films were collected from indoor and outdoor window surfaces in two large cities in southern China, Guangzhou and Hong Kong, and analyzed to quantify the polycyclic aromatic hydrocarbons (PAHs). In the glass films, the highest concentration of total PAHs, predominantly phenanthrene, fluorene, fluoranthene, and pyrene, was found to be l400 ng/m(2). The concentrations of PAHs in Guangzhou were usually higher than those in Hong Kong. In general, higher concentrations of PAHs on exterior window films in comparison with interior window films in both cities indicated that the outdoor air acted as a major source of pollution to the indoor environment. However, indoor air was a major source of some light-weight PAHs. Measurements made over time indicated that the growth rates of light-weight PAHs on window surfaces were fast at the beginning and then gradually reached a consistent level, whereas heavy-weight PAHs exhibited near-linear accumulation during the 40 days sampling period.
authors.affiliation: College of Resources and Environment, South China Agricultural University, Guangzhou 510642, China.
authors.forename: Su-Hong
authors.initials: SH
authors.lastname: Pan
authors.forename: Jun
authors.initials: J
authors.lastname: Li
authors.forename: Tian
authors.initials: T
authors.lastname: Lin
authors.forename: Gan
authors.initials: G
authors.lastname: Zhang
authors.forename: Xiang-Dong
authors.initials: XD
authors.lastname: Li
authors.forename: Hua
authors.initials: H
authors.lastname: Yin
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D000397:Air Pollution / Q000032:analysis*; D016902:Air Pollution, Indoor / Q000032:analysis*; D002947:Cities; D004784:Environmental Monitoring; D006723:Hong Kong; D006794:Household Articles; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis*
chemical_list: D000393:Air Pollutants; D011084:Polycyclic Aromatic Hydrocarbons