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- W2210996821 abstract "Due to its isolated location, Antarctica is a natural laboratory for studying atmospheric aerosols and pollution in remote areas. Here, we determined levoglucosan and phenolic compounds (PCs) at diverse Antarctic sites: on the plateau, a coastal station and during an oceanographic cruise. Levoglucosan and PCs reached the Antarctic plateau where they were observed in accumulation mode aerosols (with median levoglucosan concentrations of 6.4 pg m(-3) and 4.1 pg m(-3), and median PC concentrations of 15.0 pg m(-3) and 7.3 pg m(-3)). Aged aerosols arrived at the coastal site through katabatic circulation with the majority of the levoglucosan mass distributed on larger particulates (24.8 pg m(-3)), while PCs were present in fine particles (34.0 pg m(-3)). The low levoglucosan/PC ratios in Antarctic aerosols suggest that biomass burning aerosols only had regional, rather than local, sources. General acid/aldehyde ratios were lower at the coastal site than on the plateau. Levoglucosan and PCs determined during the oceanographic cruise were 37.6 pg m(-3) and 58.5 pg m(-3) respectively. Unlike levoglucosan, which can only be produced by biomass burning, PCs have both biomass burning and other sources. Our comparisons of these two types of compounds across a range of Antarctic marine, coastal, and plateau sites demonstrate that local marine sources dominate Antarctic PC concentrations." @default.
- W2210996821 created "2016-06-24" @default.
- W2210996821 creator A5038586419 @default.
- W2210996821 creator A5055547535 @default.
- W2210996821 creator A5057121840 @default.
- W2210996821 creator A5062048922 @default.
- W2210996821 creator A5068388742 @default.
- W2210996821 creator A5075473142 @default.
- W2210996821 date "2016-02-01" @default.
- W2210996821 modified "2023-10-16" @default.
- W2210996821 title "Levoglucosan and phenols in Antarctic marine, coastal and plateau aerosols" @default.
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