Volcanic ash : chemical composition, environmental impact, and health risks / edited by Danielle Graver. - New York : Novinka, 2015. - viii, 73 p. : ill. (some col.), col. maps ; 23 cm. - Earth sciences in the 21st century . Includes index. ISBN: 9781634635974 Subjects--Topical Terms: Volcanic ash, tuff, etc.Volcanic ash, tuff, etc.--Analysis. Volcanic ash, tuff, etc.--Environmental aspects.