Source characterization of BTEX in indoor microenvironments in Hong Kong

doi:10.1016/S1352-2310(02)00724-0

IEECAS OpenIR > 黄土与第四纪地质国家重点实验室（1985-2004）

	Source characterization of BTEX in indoor microenvironments in Hong Kong
	Guo, H; Lee, SC; Li, WM; Cao, JJ
	2003-01
发表期刊	ATMOSPHERIC ENVIRONMENT
卷号	37 期号:1 页码:73-82
文章类型	Article
摘要	Levels of benzene, toluene, ethylbenzene and the xylenes (BTEX) in different indoor microenvironments such as offices, homes, schools, shopping malls and restaurants were investigated in Hong Kong. Different indoor environments including six offices, six homes, six air-conditioned classrooms, six shopping malls and four restaurants were selected in Hong Kong for indoor and outdoor BTEX measurement. This study is aimed to determine qualitatively or semi-quantitatively sources of BTEX. Source identification is possible by determining the indoor/ outdoor (I/O) concentration ratio. An I/O ratio > 1 was considered as an indicator for indoor sources. For BTEX in different indoor environments except for schools, some of the pollutants were dominated by outdoor sources while others mainly originated from indoor sources. In schools, however, the BTEX predominantly originated from outdoor sources. The potential sources of BTEX in indoor environments were also identified by using principal component analysis and nonparametric Kruskal-Wallis test. The number of variables was reduced to two and one new factors for indoor and outdoor data, respectively. These factors were related to certain source characteristics. It is shown that the type of land use, the use of printers, the traffic condition, the cooking style, the type of gas stove, smoking and internal decoration strongly influence the indoor concentrations of BTEX (p<0.05). Significant difference of BTEX concentrations in the five types of indoor environments were also observed (P<0.05). (C) 2002 Elsevier Science Ltd. All rights reserved.
关键词	indoor air pollution BTEX I/0 ratios statistical analysis principal component analysis
学科领域	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
DOI	10.1016/S1352-2310(02)00724-0
关键词[WOS]	VOLATILE ORGANIC-COMPOUNDS ; AIR-QUALITY ; ATMOSPHERIC-ENVIRONMENT ; AROMATIC-HYDROCARBONS ; EXPOSURE ; BREATH
收录类别	SCI ; SCIE
语种	英语
WOS研究方向	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000180454900008
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：118[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/11876
专题	黄土与第四纪地质国家重点实验室（1985-2004）
推荐引用方式 GB/T 7714	Guo, H,Lee, SC,Li, WM,et al. Source characterization of BTEX in indoor microenvironments in Hong Kong[J]. ATMOSPHERIC ENVIRONMENT,2003,37(1):73-82.
APA	Guo, H,Lee, SC,Li, WM,&Cao, JJ.(2003).Source characterization of BTEX in indoor microenvironments in Hong Kong.ATMOSPHERIC ENVIRONMENT,37(1),73-82.
MLA	Guo, H,et al."Source characterization of BTEX in indoor microenvironments in Hong Kong".ATMOSPHERIC ENVIRONMENT 37.1(2003):73-82.