Radio- and stable-isotope measurements of atmospheric carbon monoxide in Los Angeles.
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- Sakugawa Hiroshi
- Faculty of Integrated Arts and Sciences, Hiroshima University
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- Kaplan Isaac R.
- Institute of Geophysics and Planetary Physics, University of California at Los Angeles
書誌事項
- タイトル別名
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- Radio and stable-isotope measurements o
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Measurements of 13C/12C, 18O/16O and 14C/12C ratios of CO collected at ground surface were performed, during July, 1992 through September, 1993, on twenty-five atmospheric samples which were obtained from Burbank, Lynwood and Westwood (Los Angeles), Lake Gregory and Ojai (semi-remote areas of southern California). The ranges of ambient CO concentrations were 0.4-3.9 ppmv and the isotopic ratios measured were -24.4 to -29.0‰ for δ13CV-PDB, and +16.3 to +24.9‰ for δ18OV-SMOW, respectively, while the content of modern carbon ranged from 20 to 68%. Although it is obvious that fossil fuel combustion (presumably from automobile exhaust) is the dominant source for CO in Los Angeles, domestic wood burning in winter or some other non-fossil fuel sources may contribute as much as 17% CO to the atmospheric burden in some areas of Los Angeles.
収録刊行物
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- GEOCHEMICAL JOURNAL
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GEOCHEMICAL JOURNAL 31 (2), 75-83, 1997
一般社団法人日本地球化学会
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詳細情報 詳細情報について
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- CRID
- 1390282679527970432
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- NII論文ID
- 130003904573
- 10008801390
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- NII書誌ID
- AA00654975
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- ISSN
- 18805973
- 00167002
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- NDL書誌ID
- 4188107
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- CiNii Articles
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- 使用不可