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Characterizing black carbon in rain and ice cores using coupled tangential flow filtration and transmission electron microscopy

Citation

Ellis, A and Edwards, R and Saunders, M and Chakrabarty, RK and Subramanian, R and van Riessen, A and Smith, AM and Lambrinidis, D and Nunes, LJ and Vallelonga, P and Goodwin, ID and Moy, AD and Curran, MAJ and van Ommen, TD, Characterizing black carbon in rain and ice cores using coupled tangential flow filtration and transmission electron microscopy, Atmospheric Measurement Techniques, 8, (9) pp. 3959-3969. ISSN 1867-1381 (2015) [Refereed Article]


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Author(s) 2015. Licensed under Creative Commons Attribution 3.0 Unported (CC BY 3.0) http://creativecommons.org/licenses/by/3.0/

DOI: doi:10.5194/amt-8-3959-2015

Abstract

Antarctic ice cores have been used to study the history of black carbon (BC), but little is known with regards to the physical and chemical characteristics of these particles in the remote atmosphere. Characterization remains limited by ultra-trace concentrations in ice core samples and the lack of adequate methods to isolate the particles unaltered from the melt water. To investigate the physical and chemical characteristics of these particles, we have developed a tangential flow filtration (TFF) method combined with transmission electron microscopy (TEM). Tests using ultrapure water and polystyrene latex particle standards resulted in excellent blanks and significant particle recovery. This approach has been applied to melt water from Antarctic ice cores as well as tropical rain from Darwin, Australia with successful results: TEM analysis revealed a variety of BC particle morphologies, insoluble coatings, and the attachment of BC to mineral dust particles. The TFF-based concentration of these particles has proven to give excellent results for TEM studies of BC particles in Antarctic ice cores and can be used for future studies of insoluble aerosols in rainwater and ice core samples.

Item Details

Item Type:Refereed Article
Keywords:black carbon, ice cores, Antarctica, tangential flow filtration, transmission electron microscopy
Research Division:Earth Sciences
Research Group:Physical Geography and Environmental Geoscience
Research Field:Palaeoclimatology
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Environmental Sciences
Author:Moy, AD (Dr Andrew Moy)
Author:Curran, MAJ (Dr Mark Curran)
Author:van Ommen, TD (Dr Tas van Ommen)
ID Code:106111
Year Published:2015
Web of Science® Times Cited:8
Deposited By:CRC-Antarctic Climate & Ecosystems
Deposited On:2016-01-29
Last Modified:2017-10-30
Downloads:51 View Download Statistics

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