References Authors Buist, A. S. Category Ash hazards and impacts - respiratory Sub-Category Epidemiological, clinical & surveillance Reviews/ Overviews Year 1982 Publication Western Journal of Medicine Volume, Issue, Pages 137(4), 294 URL https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1274108/pdf/westjmed00206-0064.pdf Country/Overseas territory United States Volcano Mount St. Helens
