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Cicerone et al. 1988
Cicerone, R.J., Heidt, L.E. and Pollock, W.H. (1988). Measurements of atmospheric methyl bromide and bromoform. Journal of Geophysical Research 93: doi: 10.1029/88JD01625. issn: 0148-0227.

We have measured gaseous methyl bromide (CH3Br) and bromoform (CHBr3) in air samples that were gathered approximately weekly from five ground-level sites: Point Barrow, Alaska; Mauna Loa Observatory and Cape Kumukahi, Hawaii; Matatula, Samoa; and Kaitorete Spit, New Zealand. Approximately 750 samples have been analyzed for CH3Br between January 1985 and October 1987 and 990 samples have been analyzed for CHBr3 between early 1984 and September 1987, all by gas chromatography/mass spectroscopy. Methyl bromide concentrations are typically 10--11 parts per trillion (ppt) by volume; there are no clear indications of temporal increases. Bromoform concentrations are typically 2--3 ppt, but large seasonal variations are seen at Point Barrow. ¿ American Geophysical Union 1988

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Keywords
Atmospheric Composition and Structure, Troposphere—composition and chemistry
Journal
Journal of Geophysical Research
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American Geophysical Union
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