Matches in SemOpenAlex for { <https://semopenalex.org/work/W4283764103> ?p ?o ?g. }
Showing items 1 to 45 of
45
with 100 items per page.
- W4283764103 abstract "<strong class=journal-contentHeaderColor>Abstract.</strong> The current improvements in aerosol mass spectrometers in resolution and sensitivity, and the analytical tools for mass spectra deconvolution, have enabled the in-depth analysis of ambient organic aerosol (OA) properties. Although OA constitutes a major fraction of ambient aerosol, its properties are determined to a great extent by the mixing characteristics of both organic and inorganic components of ambient aerosol. This work applies a new methodology to a year-long ACSM dataset to assess the sources of organic and total non-refractory species in the Athens background aerosol and provides insights into the interactions between organic and inorganic species. The use of innovative tools for applying positive matrix factorization (PMF, rolling window) enables the study of the temporal variability of the contribution of these sources and seasonal changes in their composition. The mass spectra of both organic and inorganic aerosol were obtained by a time-of-flight aerosol mass spectrometer (ToF-ACSM) for PMF analysis. The results revealed five factors when organic aerosol was analysed separately. Three of them were primary OA factors: hydrocarbon-like organic aerosol (HOA), cooking-related organic aerosol (COA) and biomass burning organic aerosol (BBOA). The remaining two were secondary, less and more oxidized oxygenated organic aerosol (LO-OOA and MO-OOA respectively). The relative contributions of these factors were HOA 15â%, COA 18â%, BBOA 9â%, MO-OOA 34â% and LO-OOA 24â% (yearly averaged). When a combined organic and inorganic aerosol matrix was analysed, two additional factors were identified that were mainly composed of ammonium sulfate (83.5â%) and ammonium nitrate (73â%). Moreover, two secondary factors were resolved, containing both organics and inorganics and were named more (MOA) and less oxidized aerosol (LOA). The relative contributions on a yearly average of these factors were HOA 7â%, COA 9â%, BBOA 3â%, ammonium nitrate 3â%, ammonium sulfate 28â%, MOA 24â% and LOA 26â%." @default.
- W4283764103 created "2022-07-02" @default.
- W4283764103 creator A5073307286 @default.
- W4283764103 date "2022-06-30" @default.
- W4283764103 modified "2023-10-18" @default.
- W4283764103 title "Reply on RC2" @default.
- W4283764103 doi "https://doi.org/10.5194/amt-2022-38-ac2" @default.
- W4283764103 hasPublicationYear "2022" @default.
- W4283764103 type Work @default.
- W4283764103 citedByCount "0" @default.
- W4283764103 crossrefType "peer-review" @default.
- W4283764103 hasAuthorship W4283764103A5073307286 @default.
- W4283764103 hasBestOaLocation W42837641031 @default.
- W4283764103 hasConcept C107872376 @default.
- W4283764103 hasConcept C162356407 @default.
- W4283764103 hasConcept C178790620 @default.
- W4283764103 hasConcept C185592680 @default.
- W4283764103 hasConcept C2779345167 @default.
- W4283764103 hasConcept C39432304 @default.
- W4283764103 hasConcept C40325409 @default.
- W4283764103 hasConcept C43617362 @default.
- W4283764103 hasConceptScore W4283764103C107872376 @default.
- W4283764103 hasConceptScore W4283764103C162356407 @default.
- W4283764103 hasConceptScore W4283764103C178790620 @default.
- W4283764103 hasConceptScore W4283764103C185592680 @default.
- W4283764103 hasConceptScore W4283764103C2779345167 @default.
- W4283764103 hasConceptScore W4283764103C39432304 @default.
- W4283764103 hasConceptScore W4283764103C40325409 @default.
- W4283764103 hasConceptScore W4283764103C43617362 @default.
- W4283764103 hasLocation W42837641031 @default.
- W4283764103 hasOpenAccess W4283764103 @default.
- W4283764103 hasPrimaryLocation W42837641031 @default.
- W4283764103 hasRelatedWork W1496350774 @default.
- W4283764103 hasRelatedWork W1697657832 @default.
- W4283764103 hasRelatedWork W1966370766 @default.
- W4283764103 hasRelatedWork W1968649757 @default.
- W4283764103 hasRelatedWork W1977191183 @default.
- W4283764103 hasRelatedWork W2055600681 @default.
- W4283764103 hasRelatedWork W2094816998 @default.
- W4283764103 hasRelatedWork W2120315712 @default.
- W4283764103 hasRelatedWork W2376736531 @default.
- W4283764103 hasRelatedWork W2899084033 @default.
- W4283764103 isParatext "false" @default.
- W4283764103 isRetracted "false" @default.
- W4283764103 workType "peer-review" @default.