Abstract:In order to investigate the distribution of organic matter and polycyclic aromatic hydrocarbons (PAHs) in organic film of window glass surfaces, samples of indoor and outdoor were collected in pairs with cleaned Kimwipes paper from untinted windows at 6 sites in the urban area of Guangzhou, and 9 sites in Hong Kong, respectively, between Dec, 2007 and Jan, 2008. High levels of organic matter were observed on the window surfaces in the two cities, but ratios of organic matter to total glass film masses were relatively low. The average value was 1.8% and 1.1% for interior and exterior windows at Guangzhou, and 3.9% and 1.6% for interior and exterior windows at Hong Kong, respectively. The highest concentration of total PAHs in the glass films was found to be 1430 ng/m2, which was dominated by phenanthrene, fluorene, fluoranthene, and pyrene. High molecular weight PAHs mostly in particulate phase were significant high in exterior films. The concentrations of 5~6 ring PAHs were about one fold higher in the exterior films than in the interior films at Guangzhou, whereas about 5 to 10 fold higher at Hong Kong. The analysis of correlation between organic matter and PAHs indicated that sources of organic matter and PAHs in indoor and outdoor environment were different from each other. The residence on window surface would be beneficial to photodegradation of PAHs.
潘苏红, 林田, 李军, 张干, 刘向. 居室玻璃表面有机质与多环芳烃分布规律研究[J]. 中国环境科学, 2010, 30(8): 1021-1025.
PAN Su-Hong, LIN Tian, LI Jun, ZHANG Gan, LIU Xiang. Concentration and distribution of organic matter and polycyclic aromatic hydrocarbons (PAHs) on window glass surface. CHINA ENVIRONMENTAL SCIENCECE, 2010, 30(8): 1021-1025.