Vertical distribution of carbonyl sulfide at Mt. Fuji, Japan

Hiromi Kato, Yasuhito Igarashi, Yukiko Dokiya, Yoko Katayama

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

Atmospheric carbonyl sulfide (COS) mixing ratios measured over 24 h during five summer campaigns (2003-2007) in a forest at the foot of Mt. Fuji, Japan (35°21' N, 138°43' E; 1,300 m above sea level, a.s.l.) and at the summit (3,776 ma.s.l.) were compared. COS levels were lower at the foot than at the summit during four out of five summer campaigns. The ratios of COS mixing ratios at the foot of Mt. Fuji to those at the summit ranged from 0.7 to 0.9. These results provide evidence of biological consumption of COS in the East Asian atmospheric boundary layer. We also measured the vertical profile of ambient COS below the forest canopy. These data showed a clear gradient of COS mixing ratio: in the lowermost 1 m of the boundary layer, COS mixing ratios decreased markedly downward. Two of the different kinds of vertical distribution of COS presented here support the role of soil as a sink of atmospheric COS described by previous research using dynamic enclosure experiments.

Original languageEnglish
Pages (from-to)159-167
Number of pages9
JournalWater, Air, and Soil Pollution
Volume223
Issue number1
DOIs
Publication statusPublished - 2012 Jan

Keywords

  • Carbonyl sulfide
  • Free troposphere
  • Ground surface
  • Soil microbes
  • Vertical distribution

ASJC Scopus subject areas

  • Environmental Engineering
  • Environmental Chemistry
  • Ecological Modelling
  • Water Science and Technology
  • Pollution

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