University of Hertfordshire

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By the same authors

Real-time detection of airborne asbestos by light scattering from magnetically re-aligned fibers

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Original languageEnglish
Pages (from-to)11356-11367
Number of pages12
JournalOptics Express
Publication statusPublished - May 2013


Inadvertent inhalation of asbestos fibers and the subsequent
development of incurable cancers is a leading cause of work-related deaths
worldwide. Currently, there is no real-time in situ method for detecting
airborne asbestos. We describe an optical method that seeks to address this
deficiency. It is based on the use of laser light scattering patterns to
determine the change in angular alignment of individual airborne fibers
under the influence of an applied magnetic field. Detection sensitivity
estimates are given for both crocidolite (blue) and chrysotile (white)
asbestos. The method has been developed with the aim of providing a low-
cost warning device to tradespeople and others at risk from inadvertent
exposure to airborne asbestos.


This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: doi:10.1364/OE.21.011356. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law


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