DOI: 10.1002/grl.50922
论文题名: Production of methanol, acetaldehyde, and acetone in the Atlantic Ocean
作者: Dixon J.L. ; Beale R. ; Nightingale P.D.
刊名: Geophysical Research Letters
ISSN: 0094-8585
EISSN: 1944-8316
出版年: 2013
卷: 40, 期: 17 起始页码: 4700
结束页码: 4705
语种: 英语
英文关键词: acetaldehyde
; acetone
; biological removal
; marine lifetimes
; methanol
; production
Scopus关键词: Biological removal
; Coastal upwelling
; marine lifetimes
; Marine productivity
; Microbial surfaces
; Oceanic environments
; Photochemical production
; Production rates
; Acetone
; Carbon dioxide
; Methanol
; Production
; Volatile organic compounds
; Acetaldehyde
; acetaldehyde
; acetone
; biogeochemistry
; methanol
; oxidation
; upwelling
; volatile organic compound
; Atlantic Ocean
英文摘要: The biogeochemistry of oxygenated volatile organic compounds (OVOCs) like methanol, acetaldehyde, and acetone in marine waters is poorly understood. We report the first in situ gross production rates for methanol, acetaldehyde, and acetone of 49-103, 25-98, and 2-26 nmol L-1 d-1 over contrasting areas of marine productivity, including oligotrophic gyres and eutrophic upwellings. Photochemical production estimates are mostly negligible for methanol, up to 68% for acetaldehyde and up to 100% of gross production rates for acetone. Microbial surface OVOC oxidation to CO2 accounts for between 10-50% and 0.5-13% of the methanol and acetone losses, respectively, but largely control acetaldehyde concentrations (49-100%). Biological lifetimes in a coastal upwelling vary between ≤1 day for acetaldehyde, to approximately 7 days for methanol and up to ∼80 days for acetone. In open oceanic environments, the lifetime of acetaldehyde ranges between 2 and 5 h, compared to 10-26 days for methanol and 5-55 days for acetone. Key Points To provide net and gross marine OVOC production rates Evaluate the significance of microbial sinks Estimate OVOC biological lifetimes in marine waters ©2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84883663818&doi=10.1002%2fgrl.50922&partnerID=40&md5=22b6b0e151f22c77db8f2b19b6b6acb1
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/5849
Appears in Collections: 气候减缓与适应
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作者单位: Plymouth Marine Laboratory, Prospect Place, West Hoe, Plymouth, Devon, PL1 3DH, United Kingdom
Recommended Citation:
Dixon J.L.,Beale R.,Nightingale P.D.. Production of methanol, acetaldehyde, and acetone in the Atlantic Ocean[J]. Geophysical Research Letters,2013-01-01,40(17).