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- New feeds of volcanic information at the GVP 12-Mar-08 08:07
- Paper on health-pertinent ash estimation 10-Jan-08 09:55
- Publication of pamphlets on health hazard 10-Jan-08 09:47
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Paper on health-pertinent ash estimation
A paper has recently been published that presents a formula to estimate the percentage of health-pertinent ash in a sieved sample. Currently one can only really accurately sieve to 63 um but finding out if volcanic ash is respirable (< 4 um) is critical for health hazard assessment. The formula allows rapid assessment using very basic equipment. The paper can be seen at
http://www.rsc.org/Publishing/ChemTech/Volume/2007/10/volcano.asp
http://www.sciencedaily.com/releases/2007/10/071010111923.htm
(or do a google search for rapid analysis of ash).
Ask Claire J. Orwell for more information: claire.horwell
durham.ac.uk