Repository of University of Nova Gorica

Show document
A+ | A- | Help | SLO | ENG

Title:Secondary organic aerosol formation from anthropogenic air pollution : rapid and higher than expected
Authors:ID Volkamer, Rainer (Author)
ID Jimenez, Jose L. (Author)
ID San Martini, F. M. (Author)
ID Džepina, Katja (Author)
ID Zhang, Q. (Author)
ID Salcedo, Dara (Author)
ID Molina, Luisa T. (Author)
ID Worsnop, D. (Author)
Files:This document has no files that are freely available to the public. This document may have a physical copy in the library of the organization, check the status via COBISS. Link is opened in a new window
Work type:Unknown
Typology:1.01 - Original Scientific Article
Organization:UNG - University of Nova Gorica
Abstract:The atmospheric chemistry of volatile organic compounds (VOCs) in urban areas results in the formation of 'photochemical smog', including secondary organic aerosol (SOA). State-of-the-art SOA models parameterize the results of simulation chamber experiments that bracket the conditions found in the polluted urban atmosphere. Here we show that in the real urban atmosphere reactive anthropogenic VOCs (AVOCs) produce much larger amounts of SOA than these models predict, even shortly after sunrise. Contrary to current belief, a significant fraction of the excess SOA is formed from first-generation AVOC oxidation products. Global models deem AVOCs a very minor contributor to SOA compared to biogenic VOCs (BVOCs). If our results are extrapolated to other urban areas, AVOCs could be responsible for additional 3 - 25 Tg yr(-1) SOA production globally, and cause up to - 0.1 W m(-2) additional top-of-the-atmosphere radiative cooling.
Keywords:atmospheric aerosol, atmospheric chemistry, volatile organic compounds, secondary organic aerosols
Year of publishing:2006
Number of pages:str. 1-4
Numbering:Vol. 33, iss. 17
PID:20.500.12556/RUNG-6464 New window
COBISS.SI-ID:59094787 New window
ISSN on article:0094-8276
DOI:10.1029/2006GL026899 New window
Publication date in RUNG:12.04.2021
Copy citation
Average score:(0 votes)
Your score:Voting is allowed only for logged in users.
Share:Bookmark and Share

Hover the mouse pointer over a document title to show the abstract or click on the title to get all document metadata.

Record is a part of a journal

Title:Geophysical research letters
Shortened title:Geophys. res. lett.
Publisher:American Geophysical Union.
COBISS.SI-ID:16168965 New window