Indoor/outdoor relationships for PM2.5 carbonaceous pollutants at residences in Hong Kong

被引：0
作者：
Cao, JJ [1 ]
Lee, SC [1 ]
机构：
[1] Chinese Acad Sci, Inst Earth Environm, SKLLQG, Xian, Peoples R China
来源：
INDOOR AIR 2005: PROCEEDINGS OF THE 10TH INTERNATIONAL CONFERENCE ON INDOOR AIR QUALITY AND CLIMATE, VOLS 1-5 | 2005年
关键词：
organic carbon; elemental carbon; residences; PM(2.5); I/O ratio;
D O I：
暂无
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Six residences were selected to evaluate the indoor-outdoor characteristics of PM(2.5) carbonaceous species in Hong Kong during March and April 2004. Daily (24-h average) indoor/outdoor PM(2.5) samples were collected on pre-fired quartz-fiber filters with mini-volume samplers and analyzed for organic and elemental carbon (OC, EC). The average indoor OC and EC concentrations of 17.1 mu g/m(3) and 2.8 mu g/m(3). The average indoor OC/EC ratios were 5.8, 9.1, and 5.0 in roadside, urban, and rural areas, respectively; while average outdoor OC/EC ratios were 4.0, 4.3, and 4.0, respectively. The average I/O ratios of 24 h OC, and EC were 1.8, and 1.2, respectively. A simple model implied that about two-thirds of carbonaceous particles in indoor air are originated from outdoor sources.
引用
收藏
页码：1744 / 1747
页数：4
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