Walkthrough Inspection 09/01/2019:
Inspection of the subject property by assessor after heavy rain.
Up to 6 buildings containing asbestos materials were pushed over by machine and buried in the grounds of the hospital several decades ago. This information was the result of confidential public interest disclosure, January 2019 at Richmond i.e. original knowledge.
Opinion 30/01/2019:
NOHSC who are the authors of the Membrane Filter Method provide this advice for a mixed dust environment:
It should be emphasised that in mixed dust situations the presence of other fibres and fibre-like particles may interfere with the interpretation of any results. The MFM does not distinguish between the different types of fibres, including organic fibres and synthetic mineral fibres.
The Membrane Filter Method for Estimating Airborne Asbestos Fibres (MFM) has limited value in this instance i.e. potential for false positives.
The dust of the subject areas is made up of dirt (very fine soil), plant matter (dried up grass and leaves) as well as other organic materials including insect debris. There is also construction waste of non-asbestos materials including synthetic mineral
SEM uses the membrane filter method (NOHSC 3003:2005) on the unused half of the filter to identify countable fibres and provide an empirical chemical analysis identifying the fibre (animal, vegetable or mineral)
Microanalysis Australia
Phone – Laboratory
(08) 9225 5810
Address
37 Kensington Street East Perth WA 6004