Summertime aerosol over the west of Ireland dominated by secondary aerosol during long-range transport

Chunshui Lin, Darius Ceburnis, Ru Jin Huang, Francesco Canonaco, André Stephan Henry Prévôt, Colin O'Dowd, Jurgita Ovadnevaite

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8 Citations (Scopus)

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 languageEnglish
Article number59
Number of pages0
JournalAtmosphere
Volume10
Issue number2
DOIs
Publication statusPublished - 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

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