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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
chemistry
Basin-Scale Observations of Monoterpenes in the Arctic and Atlantic Oceans
Environmental Science and Technology, Volume 51, No. 18, Year 2017
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Description
We report novel in situ speciated observations of monoterpenes (α- and β-pinene, myrcene, δ3-carene, ocimene, limonene) in seawater and air during three cruises in the Arctic and Atlantic Oceans, in/over generally oligotrophic waters. Oceanic concentrations of the individual monoterpenes ranged from below the detection limit of <1 pmol L-1 to 5 pmol L-1, with average concentrations of between 0.5 and 2.9 pmol L-1. After careful filtering for contamination, atmospheric mixing ratios varied from below the detection limit (<1 pptv) to 5 pptv, with averages of 0.05-5 pptv; these levels are up to 2 orders of magnitude lower than those reported previously. This could be at least partly due to sampling over waters with much lower biological activity than in previous studies. Unlike in previous studies, no clear relationships of the monoterpenes with biological variables were found. Based on our measured seawater concentrations and a global model simulation, we estimate total global marine monoterpene emissions of 0.16 Tg C yr-1, similar to a previous bottom-up estimate based on laboratory monoculture studies but 2 orders of magnitude lower than a previous top-down estimate of 29.5 Tg C yr-1. © 2017 American Chemical Society.
Authors & Co-Authors
Airs, Ruth Louise
United Kingdom, Plymouth
Plymouth Marine Laboratory
Arnold, Steve R.
United Kingdom, Leeds
University of Leeds
Bouman, Heather A.
United Kingdom, Oxford
University of Oxford
Cummings, Denise G.
United Kingdom, Plymouth
Plymouth Marine Laboratory
Lewis, Alastair C.
United Kingdom, York
University of York
Tarran, Glen Adam
United Kingdom, Plymouth
Plymouth Marine Laboratory
Tilstone, Gavin H.
United Kingdom, Plymouth
Plymouth Marine Laboratory
Carpenter, Lucy J.
United Kingdom, York
University of York
Statistics
Citations: 15
Authors: 8
Affiliations: 6
Identifiers
Doi:
10.1021/acs.est.7b02240
ISSN:
0013936X
Research Areas
Environmental