Personal, ambient & remote monitoring/sensing, Physicochemical or geochemical

• Martin, R. S., Mather, T. A., Pyle, D. M., Power, M., Tsanev, V. I., Oppenheimer, C., Allen, A. G., Horwell, C. J., Ward, E. P. W., (2009), Size distributions of fine silicate and other particles in Masaya's volcanic plume, Journal of Geophysical Research – Atmospheres, 114(D09217), 1-13, 10.1029/2008JD011211
• Allen, A. G., Baxter, P. J., Ottley, C. J., (2000), Gas and particle emissions from Soufriere Hills Volcano, Montserrat, West Indies: characterization and health hazard assessment, Bulletin of Volcanology, 62(1), 8-19, 10.1007/s004450050287

Physicochemical or geochemical

• Martin, R. S., Mather, T. A., Pyle, D. M., Power, M., Allen, A. G., Aiuppa, A., Horwell, C. J., Ward, E. P. W., (2008), Chemical and morphological characterisation of volcanic aerosols and nanoparticles from Mt Etna, Journal of Geophysical Research – Atmospheres, 113, D17, Art. No. D17211, 10.1029/2007JD009648
• Allen, A. G., Mather, T. A., McGonigle, A. J. S., Aiuppa, A., Delmelle, P., Davison, B., Bobrowski, N., Oppenheimer, C., Pyle, D. M., Inguaggiato, S., (2006), Sources, size distribution, and downwind grounding of aerosols from Mount Etna, Journal of Geophysical Research-Atmospheres, 111(D10302), 10.1029/2005JD006015

Personal, ambient & remote monitoring/sensing

• Horwell, C. J., Patterson, J. E., Gamble, J. A., Allen, A. G., (2005), Monitoring and mapping of hydrogen sulphide emissions across an active geothermal field: Rotorua, New Zealand, Journal of Volcanology and Geothermal Research, 139(3-4), 259-269, 10.1016/j.jvolgeores.2004.08.010
• Horwell, C. J., Allen, A. G., Mather, T. A., Patterson, J. E., (2004), Evaluation of a simple passive sampling technique for monitoring volcanogenic hydrogen sulphide, Journal of Environmental Monitoring, 6, 630-635, 10.1039/b400746h
• Mather, T. A., Allen, A. G., Oppenheimer, C., Pyle, D. M., McGonigle, A. J. S., (2003), Size resolved particle compositions of the tropospheric plume of Masaya volcano, Nicaragua, Journal of Atmospheric Chemistry, 46(3), 207-237, 10.1023/A:1026327502060
• Allen, A. G., Oppenheimer, C., Ferm, M., Baxter, P. J., Horrocks, L. A., Galle, B., McGonigle, A. J. S., Duffell, H. J., (2002), Primary sulfate aerosol and associated emissions from Masaya Volcano, Nicaragua, Journal of Geophysical Research-Atmospheres, 107(D23), 8, 10.1029/2002JD002120