Estimation of the SO2 source term for the Holuhraun event and its influence on central Europe air quality.

Arnold, D.; Kristiansen, N.I.; Theys, N.; Brenot, H.; Maurer, C.; Wotawa, G.; Stebel, K.; Holla, R.; Gilge, S.; Flemming, J.; Stohl, A.; Hirtl, M.