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| Titel |
Evidence of change in UK atmospheric composition as a result of Icelandic volcanic emissions in 2014 |
| VerfasserIn |
Marsailidh Twigg, Sarah Leeson, Evgenia Ilyinskaya, Susan Loughlin, Christine Braban |
| Konferenz |
EGU General Assembly 2015
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 17 (2015) |
| Datensatznummer |
250109799
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| Publikation (Nr.) |
 EGU/EGU2015-9738.pdf |
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| Zusammenfassung |
| Since 31st August 2014 an effusive eruption in a remote area known as Holuhraun north of
Vatnajökull ice cap has been ongoing. The eruption does not produce ash but is known to
emit high concentrations of gases and been found to be rich in SO2 but poor in
halogens. Since the start of the eruption, a number of plumes have been observed at
a background site in South East Scotland, where a number of trace species are
monitored in both the gas and aerosol phase. On the 22nd September 2014, the site
experienced the elevated total aerosol loadings of 35 μg m-3 and 31μg m-3 for
PM2.5 and PM10 respectively, compared to the annual averages of 4.4 μg m-3
and 7.9 μg m-3. During this period elevated SO2, SO4- and HCl were clearly
observed. One potential mechanism to explain the elevation HCl is that Cl- aerosol was
displaced from sea salt by SO2 emissions. This study will try to investigate this theory. |
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