Concentrations of Sulfur Compounds (MSA, SO2 and nss-SO4 2-) in the Marine Atmosphere and Estimation of Biogenic Sulfur Emission from the Sea

Shigeru Tanaka, Motohiro Machida, Yoshikazu Hashimoto, Hal B. Maring, Robert A. Duce

Research output: Contribution to journalArticle

Abstract

Sulfur compounds (methane sulfonic acid (MSA), SO2 and non sea salt sulfate (nss-S04 2~)) in the marine atmosphere were investigated at the cource of the Antarctic Exploration ship “Shirase” over the North Pacific Ocean, the Indian Ocean and the Anlarctic Ocean at Oahu Island over the North Pacific Ocean and at Bermuda Island over the North Atlantic Ocean. In any marine atmosphere, an existence of MSA was confirmed. Therefore, it was found that dimethyl sulfide (DMS) as a precursor of MSA was emitted globally from sea water to atmosphere. Moreover, a high concentration of MSA in Bermuda was observed during early summer when marine phytoplankton propagated. It suggestes that MSA is biogenic product. From this work, the mean concentrations in the unpolluted open sea atmosphere were 0. 03 μ;g/m3 for MSA, 0. 4 μ;g/rn3 for nss-SO4 2- (non seasalt sulfate), O.O5 ppb for SO2. On the base of these measured concentrations, the global emission of biogenic sulfur compounds from sea water to atmosphere is estimated to be about 50 TgS/y. This value is comparable to 40% of the sulfur emission (126 x 1012 gS/y) from anthropogenic sources.

Original languageEnglish
Pages (from-to)442-447
Number of pages6
JournalNippon Kagaku Kaishi
Volume1991
Issue number5
DOIs
Publication statusPublished - 1991

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Sulfur Compounds
Sulfonic Acids
Sulfur compounds
Methane
Sulfur
Acids
Sulfates
Water
Phytoplankton
Ships
Salts

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Concentrations of Sulfur Compounds (MSA, SO2 and nss-SO4 2-) in the Marine Atmosphere and Estimation of Biogenic Sulfur Emission from the Sea. / Tanaka, Shigeru; Machida, Motohiro; Hashimoto, Yoshikazu; Maring, Hal B.; Duce, Robert A.

In: Nippon Kagaku Kaishi, Vol. 1991, No. 5, 1991, p. 442-447.

Research output: Contribution to journalArticle

Tanaka, Shigeru ; Machida, Motohiro ; Hashimoto, Yoshikazu ; Maring, Hal B. ; Duce, Robert A. / Concentrations of Sulfur Compounds (MSA, SO2 and nss-SO4 2-) in the Marine Atmosphere and Estimation of Biogenic Sulfur Emission from the Sea. In: Nippon Kagaku Kaishi. 1991 ; Vol. 1991, No. 5. pp. 442-447.
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