Empirical correlations between black carbon aerosol and carbon monoxide in the lower and middle troposphere

被引：52

作者：

Spackman, J. R. ^{[1
,2
]}

Schwarz, J. P. ^{[1
,2
]}

Gao, R. S. ^{[1
]}

Watts, L. A. ^{[1
,2
]}

Thomson, D. S. ^{[1
,2
]}

Fahey, D. W. ^{[1
,2
]}

Holloway, J. S. ^{[1
,2
]}

de Gouw, J. A. ^{[1
,2
]}

Trainer, M. ^{[1
]}

Ryerson, T. B. ^{[1
]}

机构：

[1] NOAA, Div Chem Sci, Earth Syst Res Lab, Boulder, CO 80305 USA

[2] Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA

来源：

GEOPHYSICAL RESEARCH LETTERS | 2008年 / 35卷 / 19期

关键词：

D O I：

10.1029/2008GL035237

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Single-particle measurements of black carbon (BC) aerosol and simultaneous measurements of carbon monoxide (CO) were acquired aboard the NOAA WP-3D aircraft during the 2006 Texas Air Quality Study (TexAQS). Observed average BC mass loadings, estimated to account for similar to 90% of the ambient BC mass, decreased by more than 2 orders of magnitude from the polluted boundary layer to the clean middle troposphere (6 km). A strong positive, but non-linear, correlation was observed between simultaneous measurements of BC and CO. Based on an analysis of all the data below 1 km, we report a compact relationship between BC and CO with a slope of 5.8 +/- 1.0 ng BC (kg dry air)(-1) (ppb CO)(-1) that is representative of regional urban and industrial emissions from Houston and Dallas. The BC/CO emission ratio for a fresh biomass-burning plume was estimated at 9 +/- 2 ng kg(-1) ppb(-1).

引用

页数：5

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