"Missing" cloud condensation nuclei in peat smoke
(2005) In Geophysical Research Letters 32(11). p.1-4- Abstract
We characterized particulate emissions from vegetation fires by burning Indonesian and German peat and other biomass fuels in a controlled laboratory setting. By measuring cloud condensation nuclei (CCN) both as a function of particle diameter (dp) and supersaturation (S), we discovered particles in peat smoke that were not activated to cloud droplets at high S (1.6%). These hydrophobic particles were present predominantly in the size range of dp > 200 nm, where typical wood burning particles are activated at S < 0.3%. Ambient measurements during the 1997 Indonesian peat fires suggested that peat smoke particles are highly soluble and therefore efficient CCN. Our CCN measurements performed on fresh smoke from... (More)
We characterized particulate emissions from vegetation fires by burning Indonesian and German peat and other biomass fuels in a controlled laboratory setting. By measuring cloud condensation nuclei (CCN) both as a function of particle diameter (dp) and supersaturation (S), we discovered particles in peat smoke that were not activated to cloud droplets at high S (1.6%). These hydrophobic particles were present predominantly in the size range of dp > 200 nm, where typical wood burning particles are activated at S < 0.3%. Ambient measurements during the 1997 Indonesian peat fires suggested that peat smoke particles are highly soluble and therefore efficient CCN. Our CCN measurements performed on fresh smoke from peat samples of the same area suggest that these Indonesian smoke particles probably acquired soluble material through chemical processing in the atmosphere. Freshly emitted peat smoke particles are at least partially not very efficient CCN.
(Less)
- author
- publishing date
- 2005-06-16
- type
- Contribution to journal
- publication status
- published
- in
- Geophysical Research Letters
- volume
- 32
- issue
- 11
- pages
- 4 pages
- publisher
- American Geophysical Union (AGU)
- external identifiers
-
- scopus:23844465511
- ISSN
- 0094-8276
- DOI
- 10.1029/2005GL022473
- language
- English
- LU publication?
- no
- id
- 5a018f5a-d8bf-4f59-bf94-5c525d7f3197
- date added to LUP
- 2020-11-09 15:08:59
- date last changed
- 2022-04-06 13:35:49
@article{5a018f5a-d8bf-4f59-bf94-5c525d7f3197, abstract = {{<p>We characterized particulate emissions from vegetation fires by burning Indonesian and German peat and other biomass fuels in a controlled laboratory setting. By measuring cloud condensation nuclei (CCN) both as a function of particle diameter (d<sub>p</sub>) and supersaturation (S), we discovered particles in peat smoke that were not activated to cloud droplets at high S (1.6%). These hydrophobic particles were present predominantly in the size range of d<sub>p</sub> > 200 nm, where typical wood burning particles are activated at S < 0.3%. Ambient measurements during the 1997 Indonesian peat fires suggested that peat smoke particles are highly soluble and therefore efficient CCN. Our CCN measurements performed on fresh smoke from peat samples of the same area suggest that these Indonesian smoke particles probably acquired soluble material through chemical processing in the atmosphere. Freshly emitted peat smoke particles are at least partially not very efficient CCN.</p>}}, author = {{Dusek, U. and Frank, G. P. and Helas, G. and Iinuma, Y. and Zeromskiene, K. and Gwaze, P. and Hennig, T. and Massling, A. and Schmid, O. and Herrmann, H. and Wiedensohler, A. and Andreae, M. O.}}, issn = {{0094-8276}}, language = {{eng}}, month = {{06}}, number = {{11}}, pages = {{1--4}}, publisher = {{American Geophysical Union (AGU)}}, series = {{Geophysical Research Letters}}, title = {{"Missing" cloud condensation nuclei in peat smoke}}, url = {{http://dx.doi.org/10.1029/2005GL022473}}, doi = {{10.1029/2005GL022473}}, volume = {{32}}, year = {{2005}}, }