No particle mass enhancement from induced atmospheric ageing at a rural site in northern Europe
(2019) In Atmosphere 10(7).- Abstract
A large portion of atmospheric aerosol particles consists of secondary material produced by oxidation reactions. The relative importance of secondary organic aerosol (SOA) can increase with improved emission regulations. A relatively simple way to study potential particle formation in the atmosphere is by using oxidation flow reactors (OFRs) which simulate atmospheric ageing. Here we report on the first ambient OFR ageing experiment in Europe, coupled with scanning mobility particle sizer (SMPS), aerosol mass spectrometer (AMS) and proton transfer reaction (PTR)-MS measurements. We found that the simulated ageing did not produce any measurable increases in particle mass or number concentrations during the two months of the campaign due... (More)
A large portion of atmospheric aerosol particles consists of secondary material produced by oxidation reactions. The relative importance of secondary organic aerosol (SOA) can increase with improved emission regulations. A relatively simple way to study potential particle formation in the atmosphere is by using oxidation flow reactors (OFRs) which simulate atmospheric ageing. Here we report on the first ambient OFR ageing experiment in Europe, coupled with scanning mobility particle sizer (SMPS), aerosol mass spectrometer (AMS) and proton transfer reaction (PTR)-MS measurements. We found that the simulated ageing did not produce any measurable increases in particle mass or number concentrations during the two months of the campaign due to low concentrations of precursors. Losses in the reactor increased with hydroxyl radical (OH) exposure and with increasing difference between ambient and reactor temperatures, indicating fragmentation and evaporation of semivolatile material.
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- author
- Ahlberg, Erik LU ; Ausmeel, Stina LU ; Eriksson, Axel LU ; Holst, Thomas LU ; Karlsson, Tomas LU ; Brune, William H. ; Frank, Göran LU ; Roldin, Pontus LU ; Kristensson, Adam LU and Svenningsson, Birgitta LU
- organization
- publishing date
- 2019-07-17
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Ambient aerosol, Oxidation flow reactor, PAM, Secondary organic aerosol
- in
- Atmosphere
- volume
- 10
- issue
- 7
- article number
- 408
- publisher
- MDPI AG
- external identifiers
-
- scopus:85070545122
- ISSN
- 2073-4433
- DOI
- 10.3390/atmos10070408
- project
- Impact of a Salix biofuel plantation on the emission of Biogenic Volatile Organic Compounds and the production of Secondary
- The variability in Salix BVOC emissions and possible consequences for managed SRC plantations
- language
- English
- LU publication?
- yes
- id
- f99f5354-2c9a-465e-a145-eddb334ab0fd
- date added to LUP
- 2019-08-30 11:11:23
- date last changed
- 2023-11-19 12:47:42
@article{f99f5354-2c9a-465e-a145-eddb334ab0fd, abstract = {{<p>A large portion of atmospheric aerosol particles consists of secondary material produced by oxidation reactions. The relative importance of secondary organic aerosol (SOA) can increase with improved emission regulations. A relatively simple way to study potential particle formation in the atmosphere is by using oxidation flow reactors (OFRs) which simulate atmospheric ageing. Here we report on the first ambient OFR ageing experiment in Europe, coupled with scanning mobility particle sizer (SMPS), aerosol mass spectrometer (AMS) and proton transfer reaction (PTR)-MS measurements. We found that the simulated ageing did not produce any measurable increases in particle mass or number concentrations during the two months of the campaign due to low concentrations of precursors. Losses in the reactor increased with hydroxyl radical (OH) exposure and with increasing difference between ambient and reactor temperatures, indicating fragmentation and evaporation of semivolatile material.</p>}}, author = {{Ahlberg, Erik and Ausmeel, Stina and Eriksson, Axel and Holst, Thomas and Karlsson, Tomas and Brune, William H. and Frank, Göran and Roldin, Pontus and Kristensson, Adam and Svenningsson, Birgitta}}, issn = {{2073-4433}}, keywords = {{Ambient aerosol; Oxidation flow reactor; PAM; Secondary organic aerosol}}, language = {{eng}}, month = {{07}}, number = {{7}}, publisher = {{MDPI AG}}, series = {{Atmosphere}}, title = {{No particle mass enhancement from induced atmospheric ageing at a rural site in northern Europe}}, url = {{http://dx.doi.org/10.3390/atmos10070408}}, doi = {{10.3390/atmos10070408}}, volume = {{10}}, year = {{2019}}, }