論文

査読有り
2015年4月

Direct Night-Time Ejection of Particle-Phase Reduced Biogenic Sulfur Compounds from the Ocean to the Atmosphere

ENVIRONMENTAL SCIENCE & TECHNOLOGY
  • Cassandra J. Gaston
  • ,
  • Hiroshi Furutani
  • ,
  • Sergio A. Guazzotti
  • ,
  • Keith R. Coffee
  • ,
  • Jinyoung Jung
  • ,
  • Mitsuo Uematsu
  • ,
  • Kimberly A. Prather

49
8
開始ページ
4861
終了ページ
4867
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1021/es506177s
出版者・発行元
AMER CHEMICAL SOC

The influence of oceanic biological activity on sea spray aerosol composition, clouds, and climate remains poorly understood. The,emission of organic material arid gaseous dimethyl sulfide (DMS) from the ocean represents well-documented biogenic processes that influence particle chemistry in marine environments. However, the direct emission Of particle-phase biogenic sulfur from the ocean remains largely unexplored. Here we present measurements Of ocean,derived particles containing reduced sulfur, detected as elemental sulfur ions (e.g, S-32(+), S-64(2)+) in seven different marine environments using real-time, single particle mass spectrometry; these particles have not been detected outside of the marine environment. These reduced sulfur compounds were associated with primary marine particle types and wind speeds typically between 5 and 10 m/s suggesting that these particles themselves are a primary emission. In studies with measurements of seawater properties, chlorophyll-a and atmospheric DMS concentrations were typically elevated in these same locations suggesting a biogenic source for these sulfur-containing particles. Interestingly, these sulfur-containing particles only appeared at night, likely due to rapid photochemical destruction during the daytime, and comprised up to similar to 67% of the aerosol number fraction, particularly in the supermicrometer size range. These sulfur-containing particles were detected along the California coast, across the Pacific Ocean, and in the southern Indian Ocean suggesting that these particles represent a globally significant biogenic contribution to the marine aerosol burden.

Web of Science ® 被引用回数 : 7

リンク情報
DOI
https://doi.org/10.1021/es506177s
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/25835033
Scopus
https://www.scopus.com/record/display.uri?eid=2-s2.0-84928389843&origin=inward
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000353610300010&DestApp=WOS_CPL
Scopus
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84928389843&origin=inward
Scopus Citedby
https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=84928389843&origin=inward