Source apportionment of carbonaceous aerosol in southern Sweden
A one-year study was performed at the Vavihill background station in southern Sweden to estimate the anthropogenic contribution to the carbonaceous aerosol. Weekly samples of the particulate matter PM<sub>10</sub> were collected on quartz filters, and the amounts of organ...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2011-11-01
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| Series: | Atmospheric Chemistry and Physics |
| Online Access: | http://www.atmos-chem-phys.net/11/11387/2011/acp-11-11387-2011.pdf |
| _version_ | 1819208695701045248 |
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| author | J. Genberg M. Hyder K. Stenström R. Bergström D. Simpson E. O. Fors J. Å. Jönsson E. Swietlicki |
| author_facet | J. Genberg M. Hyder K. Stenström R. Bergström D. Simpson E. O. Fors J. Å. Jönsson E. Swietlicki |
| author_sort | J. Genberg |
| collection | DOAJ |
| description | A one-year study was performed at the Vavihill background station in southern Sweden to estimate the anthropogenic contribution to the carbonaceous aerosol. Weekly samples of the particulate matter PM<sub>10</sub> were collected on quartz filters, and the amounts of organic carbon, elemental carbon, radiocarbon (<sup>14</sup>C) and levoglucosan were measured. This approach enabled source apportionment of the total carbon in the PM<sub>10</sub> fraction using the concentration ratios of the sources. The sources considered in this study were emissions from the combustion of fossil fuels and biomass, as well as biogenic sources. During the summer, the carbonaceous aerosol mass was dominated by compounds of biogenic origin (80%), which are associated with biogenic primary and secondary organic aerosols. During the winter months, biomass combustion (32%) and fossil fuel combustion (28%) were the main contributors to the carbonaceous aerosol. Elemental carbon concentrations in winter were about twice as large as during summer, and can be attributed to biomass combustion, probably from domestic wood burning. The contribution of fossil fuels to elemental carbon was stable throughout the year, although the fossil contribution to organic carbon increased during the winter. Thus, the organic aerosol originated mainly from natural sources during the summer and from anthropogenic sources during the winter. The result of this source apportionment was compared with results from the EMEP MSC-W chemical transport model. The model and measurements were generally consistent for total atmospheric organic carbon, however, the contribution of the sources varied substantially. E.g. the biomass burning contributions of OC were underestimated by the model by a factor of 2.2 compared to the measurements. |
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| format | Article |
| id | doaj.art-948156961aa14ef68bc31428aaeb0301 |
| institution | Directory Open Access Journal |
| issn | 1680-7316 1680-7324 |
| language | English |
| last_indexed | 2024-12-23T05:43:29Z |
| publishDate | 2011-11-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Atmospheric Chemistry and Physics |
| spelling | doaj.art-948156961aa14ef68bc31428aaeb03012022-12-21T17:58:07ZengCopernicus PublicationsAtmospheric Chemistry and Physics1680-73161680-73242011-11-011122113871140010.5194/acp-11-11387-2011Source apportionment of carbonaceous aerosol in southern SwedenJ. GenbergM. HyderK. StenströmR. BergströmD. SimpsonE. O. ForsJ. Å. JönssonE. SwietlickiA one-year study was performed at the Vavihill background station in southern Sweden to estimate the anthropogenic contribution to the carbonaceous aerosol. Weekly samples of the particulate matter PM<sub>10</sub> were collected on quartz filters, and the amounts of organic carbon, elemental carbon, radiocarbon (<sup>14</sup>C) and levoglucosan were measured. This approach enabled source apportionment of the total carbon in the PM<sub>10</sub> fraction using the concentration ratios of the sources. The sources considered in this study were emissions from the combustion of fossil fuels and biomass, as well as biogenic sources. During the summer, the carbonaceous aerosol mass was dominated by compounds of biogenic origin (80%), which are associated with biogenic primary and secondary organic aerosols. During the winter months, biomass combustion (32%) and fossil fuel combustion (28%) were the main contributors to the carbonaceous aerosol. Elemental carbon concentrations in winter were about twice as large as during summer, and can be attributed to biomass combustion, probably from domestic wood burning. The contribution of fossil fuels to elemental carbon was stable throughout the year, although the fossil contribution to organic carbon increased during the winter. Thus, the organic aerosol originated mainly from natural sources during the summer and from anthropogenic sources during the winter. The result of this source apportionment was compared with results from the EMEP MSC-W chemical transport model. The model and measurements were generally consistent for total atmospheric organic carbon, however, the contribution of the sources varied substantially. E.g. the biomass burning contributions of OC were underestimated by the model by a factor of 2.2 compared to the measurements.http://www.atmos-chem-phys.net/11/11387/2011/acp-11-11387-2011.pdf |
| spellingShingle | J. Genberg M. Hyder K. Stenström R. Bergström D. Simpson E. O. Fors J. Å. Jönsson E. Swietlicki Source apportionment of carbonaceous aerosol in southern Sweden Atmospheric Chemistry and Physics |
| title | Source apportionment of carbonaceous aerosol in southern Sweden |
| title_full | Source apportionment of carbonaceous aerosol in southern Sweden |
| title_fullStr | Source apportionment of carbonaceous aerosol in southern Sweden |
| title_full_unstemmed | Source apportionment of carbonaceous aerosol in southern Sweden |
| title_short | Source apportionment of carbonaceous aerosol in southern Sweden |
| title_sort | source apportionment of carbonaceous aerosol in southern sweden |
| url | http://www.atmos-chem-phys.net/11/11387/2011/acp-11-11387-2011.pdf |
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