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《Environmental Pollution & Control》 2006-12
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Mass concentration characterization of PM_(2.5) indoor and outdoor during summer and winter period in Guangzhou City

Huang Hong 1,2,Li Shuncheng 3,Cao Junji 2,Zou Changwei 4,Chen Xingeng 5,Fan Shaojia 5.(1.School of Chemistry and Environment,South China Normal University,Guangzhou Guangdong 510006;2.State Key Laboratory of Loess and Quaternary Geology,Institute of Earth Environment,Chinese Academy of Sciences,Xi'an Shanxi 710075; 3.Department of Civil and Structural Engineering,Hongkong Polytechnic University,Kowloon Hongkong; 4.School of Environmental Science and Engineering,Nanchang University,Nanchang Jiangxi 330029; 5.School of Environmental Science and Engineering,Sun Yat-sen University,Guangzhou Guangdong 510275)  
Daily (24-h average) PM_ 2.5 (aerodynamic diameter 2.5 m) were collected inside and outside nine residential homes simultaneously in 3 kinds of urban area in Guangzhou city from July 2 to August 13,2004 and from November 29,2004 to January 6,2005,respectively.Average mass concentrations of PM_ 2.5 were determined by using standard weight method.During summer sampling period,average indoor and outdoor concentrations of PM_ 2.5 in Guangzhou were 67.7 μg/m 3 and 74.5 μg/m 3,respectively,and during winter sampling period average indoor and outdoor concentrations of PM_ 2.5 in Guangzhou were 109.9 μg/m 3 and 123.7 μg/m 3,respectively.The PM_ 2.5 concentrations of Guangzhou were compared with that of NAAQS in USA,with 3 kinds of specific fractions of PM_ 10 standard value of China,and with the PM_ 2.5 records of other cities in China,Asia,Europe and USA,respectively.Results indicated that PM_ 2.5 pollution in Guangzhou was very severe.In addition,it was found that mass concentrations of PM_ 2.5 in Guangzhou showed obvious spatial distribution and seasonal variation characteristics.Mass concentrations of indoor PM_ 2.5 were not always lower than that of the outdoor,implying presence of indoor air pollution.
【Fund】: 黄土与第四纪地质国家重点实验室开放基金资助项目(SKLLQG0610)。
【CateGory Index】: X51
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