Abstract
The chemical composition and sources of non-refractory submicron aerosol (NR-PM 1 ) on Galway, a west coast city of Ireland, were characterized using an aerosol chemical speciation monitor during summertime in June 2016. Organic aerosol (OA) was found to be the major part of NR-PM 1 (54%), followed by secondary inorganic sulfate (25%), ammonium (11%), and nitrate (10%). Factor analysis revealed that oxygenated OA (OOA) was the dominant OA factor, on average accounting for 84% of the total OA. The remaining 16% of OA was attributed to primary peat burning associated with domestic heating activities. As a result, secondary organic and inorganic aerosol together accounted for 91% of the total NR-PM 1 , pointing to an aged aerosol population originating from secondary formation during long-range transport. Concentration-weighted trajectory analysis indicated that these secondary aerosols were mainly associated with easterly long-range transport from the UK and/or France.
| Original language | English |
|---|---|
| Article number | 59 |
| Number of pages | 0 |
| Journal | Atmosphere |
| Volume | 10 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 1 Feb 2019 |
Keywords
- ACSM
- Air pollution sources
- Organic aerosol
- PM
- Source apportionment
Authors (Note for portal: view the doc link for the full list of authors)
- Authors
- Lin, CS;Ceburnis, D;Huang, RJ;Canonaco, F;Prevot, ASH;O'Dowd, C;Ovadnevaite, J