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Unravelling New Processes at Interfaces: Photochemical Isoprene Production at the Sea Surface.

ABSTRACT: Isoprene is an important reactive gas that is produced mainly in terrestrial ecosystems but is also produced in marine ecosystems. In the marine environment, isoprene is produced in the seawater by various biological processes. Here, we show that photosensitized reactions involving the sea-surface microlayer lead to the production of significant amounts of isoprene. It is suggested that H-abstraction processes are initiated by photochemically excited dissolved organic matter which will the degrade fatty acids acting as surfactants. This chemical interfacial processing may represent a significant abiotic source of isoprene in the marine boundary layer.

SUBMITTER: Ciuraru R

PROVIDER: S-EPMC4652275 | biostudies-literature | 2015 Nov

REPOSITORIES: biostudies-literature

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Unravelling New Processes at Interfaces: Photochemical Isoprene Production at the Sea Surface.

Ciuraru Raluca R Fine Ludovic L Pinxteren Manuela van Mv D'Anna Barbara B Herrmann Hartmut H George Christian C

Environmental science & technology 20151002 22

Isoprene is an important reactive gas that is produced mainly in terrestrial ecosystems but is also produced in marine ecosystems. In the marine environment, isoprene is produced in the seawater by various biological processes. Here, we show that photosensitized reactions involving the sea-surface microlayer lead to the production of significant amounts of isoprene. It is suggested that H-abstraction processes are initiated by photochemically excited dissolved organic matter which will the degra ...[more]

PMID: 26355365

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