气候变化领域集成服务门户(CCPortal): Marine gas-phase sulfur emissions during an induced phytoplankton bloom

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DOI	10.5194/acp-22-1601-2022
	Marine gas-phase sulfur emissions during an induced phytoplankton bloom
	Kilgour, Delaney B.; Novak, Gordon A.; Sauer, Jon S.; Moore, Alexia N.; Dinasquet, Julie; Amiri, Sarah; Franklin, Emily B.; Mayer, Kathryn; Winter, Margaux; Morris, Clare K.; Price, Tyler; Malfatti, Francesca; Crocker, Daniel R.; Lee, Christopher; Cappa, Christopher D.; Goldstein, Allen H.; Prather, Kimberly A.; Bertram, Timothy H.
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	1601
结束页码	1613
卷号	22 期号:2 页码:13
英文摘要	The oxidation of dimethyl sulfide (DMS; CH3SCH3), emitted from the surface ocean, contributes to the formation of Aitken mode particles and their growth to cloud condensation nuclei (CCN) sizes in remote marine environments. It is not clear whether other less commonly measured marine-derived, sulfur-containing gases share similar dynamics to DMS and contribute to secondary marine aerosol formation. Here, we present measurements of gas-phase volatile organosulfur molecules taken with a Vocus proton-transfer-reaction high-resolution time-of-flight mass spectrometer during a mesocosm phytoplankton bloom experiment using coastal seawater. We show that DMS, methanethiol (MeSH; CH3SH), and benzothiazole (C7H5NS) account for on average over 90 % of total gas-phase sulfur emissions, with non-DMS sulfur sources representing 36.8 +/- 7.7 % of sulfur emissions during the first 9 d of the experiment in the pre-bloom phase prior to major biological growth, before declining to 14.5 +/- 6.0 % in the latter half of the experiment when DMS dominates during the bloom and decay phases. The molar ratio of DMS to MeSH during the pre-bloom phase (DMS : MeSH = 4.60 +/- 0.93) was consistent with the range of previously calculated ambient DMS-to-MeSH sea-to-air flux ratios. As the experiment progressed, the DMS to MeSH emission ratio increased significantly, reaching 31.8 +/- 18.7 during the bloom and decay. Measurements of dimethylsulfoniopropionate (DMSP), heterotrophic bacteria, and enzyme activity in the seawater suggest the DMS : MeSH ratio is a sensitive indicator of the bacterial sulfur demand and the composition and magnitude of available sulfur sources in seawater. The evolving DMS : MeSH ratio and the emission of a new aerosol precursor gas, benzothiazole, have important implications for secondary sulfate formation pathways in coastal marine environments.
学科领域	Environmental Sciences; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000751427200001
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/273273
作者单位	University of Wisconsin System; University of Wisconsin Madison; University of California System; University of California San Diego; University of California System; University of California San Diego; Scripps Institution of Oceanography; University of California System; University of California Berkeley; Harvard University; University of Trieste; University of California System; University of California Davis; University of California System; University of California Berkeley
推荐引用方式 GB/T 7714	Kilgour, Delaney B.,Novak, Gordon A.,Sauer, Jon S.,et al. Marine gas-phase sulfur emissions during an induced phytoplankton bloom[J],2022,22(2):13.
APA	Kilgour, Delaney B..,Novak, Gordon A..,Sauer, Jon S..,Moore, Alexia N..,Dinasquet, Julie.,...&Bertram, Timothy H..(2022).Marine gas-phase sulfur emissions during an induced phytoplankton bloom.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(2),13.
MLA	Kilgour, Delaney B.,et al."Marine gas-phase sulfur emissions during an induced phytoplankton bloom".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.2(2022):13.