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Enhancement of acidic gases in biomass burning impacted air masses over CanadaBiomass-burning impacted air masses sampled over central and eastern Canada during the summer of 1990 as part of ABLE 3B contained enhanced mixing ratios of gaseous HNO3, HCOOH, CH3COOH, and what appears to be (COOH)2. These aircraft-based samples were collected from a variety of fresh burning plumes and more aged haze layers from different source regions. Values of the enhancement factor, delta X/delta CO, where X represents an acidic gas, for combustion-impacted air masses sampled both near and farther away from the fires, were relatively uniform. However, comparison of carboxylic acid emission ratios measured in laboratory fires to field plume enhancement factors indicates significant in-plume production of HCOOH. Biomass-burning appears to be an important source of HNO3, HCOOH, and CH3COOH to the troposphere over subarctic Canada.
Document ID
19950031278
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Lefer, B. L.
(Univ. of New Hampshire, Durham, NH United States)
Talbot, R. W.
(Univ. of New Hampshire, Durham, NH United States)
Harriss, R. C.
(Univ. of New Hampshire, Durham, NH United States)
Bradshaw, J. D.
(Georgia Institute of Technology, Atlanta, GA United States)
Sandholm, S. T.
(Georgia Institute of Technology, Atlanta, GA United States)
Olson, J. O.
(Georgia Institute of Technology, Atlanta, GA United States)
Sachse, G. W.
(NASA Langley Research Center Hampton, VA, United States)
Collins, J.
(NASA Langley Research Center Hampton, VA, United States)
Shipham, M. A.
(NASA Langley Research Center Hampton, VA, United States)
Blake, D. R.
(Univ. of California-Irvine, Irvine, CA United States)
Date Acquired
August 16, 2013
Publication Date
January 20, 1994
Publication Information
Publication: Journal of Geophysical Research
Volume: 99
Issue: D1
ISSN: 0148-0227
Subject Category
Meteorology And Climatology
Accession Number
95A62877
Distribution Limits
Public
Copyright
Other

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