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Brief communication: organochlorine pesticides in an archived firn core from Law Dome, East Antarctica
Citation
Bigot, M and Curran, MAJ and Moy, AD and Muir, DCG and Hawker, DW and Cropp, R and Teixeira, CF and Bengtson Nash, SM, Brief communication: organochlorine pesticides in an archived firn core from Law Dome, East Antarctica, Cryosphere, 10 pp. 2533-2539. ISSN 1994-0416 (2016) [Refereed Article]
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Copyright Statement
Copyright 2016 The Authors Licensed under Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode
DOI: doi:10.5194/tc-10-2533-2016
Abstract
Organochlorine pesticides (OCPs) were, for the first time, quantified in archived firn cores from East Antarctica representative of 1945–1957 and 1958–1967 (current era, C.E.). The core sections were melted under high-purity nitrogen atmosphere, and the meltwater was analysed. Methods allowed quantification of hexachlorocyclohexanes, heptachlor, trans-chlordane, dieldrin and endrin. While the core presented evidence of nominal contamination by modern-use chemicals, indicating handling and/or storage contamination, legacy OCP concentrations and deposition rates reported are orders of magnitude lower than those from Arctic regions, lending support for their validity. The study further provides a description of equipment used and suggests methods to overcome logistical challenges associated with trace organic contaminant detection in polar regions.
Item Details
| Item Type: | Refereed Article |
|---|---|
| Keywords: | organochlorine pesticides, OCPs, ice cores, Law Dome, trace organic contaminants |
| Research Division: | Earth Sciences |
| Research Group: | Climate change science |
| Research Field: | Climate change processes |
| Objective Division: | Environmental Policy, Climate Change and Natural Hazards |
| Objective Group: | Understanding climate change |
| Objective Field: | Understanding climate change not elsewhere classified |
| UTAS Author: | Curran, MAJ (Dr Mark Curran) |
| UTAS Author: | Moy, AD (Dr Andrew Moy) |
| ID Code: | 112484 |
| Year Published: | 2016 |
| Web of Science® Times Cited: | 10 |
| Deposited By: | CRC-Antarctic Climate & Ecosystems |
| Deposited On: | 2016-11-14 |
| Last Modified: | 2017-10-30 |
| Downloads: | 186 View Download Statistics |
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