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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