Fine particulate matter source attribution for Southeast Texas using 14C/13C ratios -: art. no. 4613

被引：61
|
作者：
Lemire, KR [1 ]
Allen, DT
Klouda, GA
Lewis, CW
机构：
[1] Univ Texas, Dept Chem Engn, Austin, TX 78712 USA
[2] Univ Texas, Ctr Energy & Environm Resources, Austin, TX 78712 USA
[3] NIST, Atmospher Chem Grp, Gaithersburg, MD 20899 USA
[4] US EPA, Natl Exposure Res Lab Res, Res Triangle Pk, NC 27711 USA
来源：
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES | 2002年 / 107卷 / D22期
关键词：
particulate matter; radiocarbon; secondary organic aerosol;
D O I：
10.1029/2002JD002339
中图分类号：
P4 [大气科学（气象学）];
学科分类号：
0706 ; 070601 ;
摘要：
Radiocarbon analyses of fine particulate matter samples collected during the summer of 2000 in southeast Texas indicate that a substantial fraction of the aerosol carbon at an urban/suburban site (27-73%) and at a rural, forested site (44-77%) was modern carbon. Data from emission inventories and additional ambient measurements indicate that the most likely sources of this modern carbon are biomass burning fires and biogenic secondary organic aerosol.
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页数：7
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