Measurement of air-sea exchange of dimethyl sulfide and acetone by PTR-MS coupled with gradient flux technique

Hiroshi Tanimoto, Sohiko Kameyama, Toru Iwata, Satoshi Inomata, Yuko Omori

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

We developed a new method for in situ measurement of air-sea fluxes of multiple volatile organic compounds (VOCs) by combining proton transfer reaction-mass spectrometry (PTR-MS) and gradient flux (GF) technique. The PTR-MS/GF system was first deployed to determine the air-sea flux of VOCs in the open ocean of the western Pacific, in addition to carbon dioxide and water vapor. Each profiling at seven heights from the ocean surface up to 14 m took 7 min. In total, 34 vertical profiles of VOCs in the marine atmosphere just above the ocean surface were obtained. The vertical gradient observed was significant for dimethyl sulfide (DMS) and acetone with the best-fit curves on quasi-logarithmic relationship. The mean fluxes of DMS and acetone were 5.5 ± 1.5 and 2.7 ± 1.3 μmol/m2/day, respectively. These fluxes are in general in accordance with those reported by previous expeditions.

Original languageEnglish
Pages (from-to)526-533
Number of pages8
JournalEnvironmental Science and Technology
Volume48
Issue number1
DOIs
Publication statusPublished - Jan 7 2014

Fingerprint

Proton transfer
Acetone
acetone
Oceans and Seas
Volatile Organic Compounds
volatile organic compound
Mass spectrometry
Protons
Mass Spectrometry
Ion exchange
mass spectrometry
Air
sulfide
Fluxes
sea surface
air
marine atmosphere
Pacific Ocean
Expeditions
open ocean

ASJC Scopus subject areas

  • Chemistry(all)
  • Environmental Chemistry
  • Medicine(all)

Cite this

Measurement of air-sea exchange of dimethyl sulfide and acetone by PTR-MS coupled with gradient flux technique. / Tanimoto, Hiroshi; Kameyama, Sohiko; Iwata, Toru; Inomata, Satoshi; Omori, Yuko.

In: Environmental Science and Technology, Vol. 48, No. 1, 07.01.2014, p. 526-533.

Research output: Contribution to journalArticle

Tanimoto, Hiroshi ; Kameyama, Sohiko ; Iwata, Toru ; Inomata, Satoshi ; Omori, Yuko. / Measurement of air-sea exchange of dimethyl sulfide and acetone by PTR-MS coupled with gradient flux technique. In: Environmental Science and Technology. 2014 ; Vol. 48, No. 1. pp. 526-533.
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