Abstract relates to a poster presentation at the European Geosciences Union General Assembly 2015

Braban, Christine

Ilyinskaya, Evgenia

Leeson, Sarah

Loughlin, Susan

Twigg, Marsailidh

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Geophysical Research AbstractsVol. 17, EGU2015-9738, 2015EGU General Assembly 2015© Author(s) 2015. CC Attribution 3.0 License.Evidence of change in UK atmospheric composition as a result ofIcelandic volcanic emissions in 2014Marsailidh Twigg (1), Sarah Leeson (1), Evgenia Ilyinskaya (2), Susan Loughlin (2), and Christine Braban (1)(1) Centre for Ecology and Hydrology, Bush Estate, Penicuik, United Kingdom , (2) British Geological Survey, West MainsRoad, Edinburgh, United KingdomSince 31st August 2014 an effusive eruption in a remote area known as Holuhraun north of Vatnajökull ice cap hasbeen ongoing. The eruption does not produce ash but is known to emit high concentrations of gases and been foundto be rich in SO2 but poor in halogens. Since the start of the eruption, a number of plumes have been observedat a background site in South East Scotland, where a number of trace species are monitored in both the gas andaerosol phase. On the 22nd September 2014, the site experienced the elevated total aerosol loadings of 35 µg m−3and 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, SO−4 and HCl were clearly observed. One potential mechanism to explain theelevation HCl is that Cl− aerosol was displaced from sea salt by SO2 emissions. This study will try to investigatethis theory.

Evidence of change in UK atmospheric composition as a result of Icelandic volcanic emissions in 2014

http://nora.nerc.ac.uk/510669/7/N510669AB.pdf

Evidence of change in UK atmospheric composition as a result of Icelandic volcanic emissions in 2014

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