Document Type

Article

Publication Date

2012

DOI

10.1029/2011JD017153

Publication Title

Journal of Geophysical Research: Atmospheres

Volume

117

Issue

D13303

Pages

1-14

Abstract

Carbon isotopic signatures (δ13C, Δ14C) of aerosol particulate matter total organic carbon (TOC) and operationally defined organic carbon (OC) components were measured in samples from two background sites in the eastern U.S. TOC and water-soluble OC (WSOC)δ13C values (−27 to −24‰) indicated predominantly terrestrial C3 plant and fossil derived sources. Total solvent extracts (TSE) and their aliphatic, aromatic, and polar OC components were depleted in δ13C (−30 to −26‰) relative to TOC and WSOC. Δ14C signatures of aerosol TOC and TSE (−476 to +25‰) suggest variable fossil contributions (∼5–50%) to these components. Aliphatic OC while comprising a small portion of the TOC (

Rights

© American Geophysical Union

Comments

A correction to this article was published in 2012. It is available at: https://doi.org/10.1029/2012JD018478

Original Publication Citation

Wozniak, A. S., Bauer, J. E., Dickhut, R. M., Xu, L., & McNichol, A. P. (2012). Isotopic characterization of aerosol organic carbon components over the eastern United States. Journal of Geophysical Research: Atmospheres, 117(D13303), 1-14. https://doi.org/10.1029/2011JD017153

Download

Share

COinS