Horwell, C. Sargent, P. Andronico, D. Lo Castro, M. Tomatis, M. Hillman, S. Michnowicz, S. Fubini, B. Additional file 1: of The iron-catalysed surface reactivity and health-pertinent physical characteristics of explosive volcanic ash from Mt. Etna, Italy Figure S1. Correlation plot of health-pertinent size fractions (sub-4 and sub-10 Οm) for historical and INGV samples. (DOCX 12 kb) Etna;Volcanic ash;Respiratory health;Surface reactivity;Fenton chemistry;Volcanic hazard 2017-08-17
    https://springernature.figshare.com/articles/journal_contribution/Additional_file_1_of_The_iron-catalysed_surface_reactivity_and_health-pertinent_physical_characteristics_of_explosive_volcanic_ash_from_Mt_Etna_Italy/5324776
10.6084/m9.figshare.c.3857026_D1.v1