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The AIOH has released a new Technical Paper providing practical guidance on minimising measurement uncertainties when using Direct Reading Dust Monitoring Instruments (DRDMIs), also referred to as real-time dust monitors, for airborne dust monitoring.
The paper focuses on improving confidence in dust measurements undertaken for both static (fixed location) and personal exposure monitoring, particularly where results are used to assess compliance with Workplace Exposure Limits (WELs). It does not cover DRDMIs designed to measure specific dust components such as crystalline silica or asbestos fibres.
The guidance highlights the importance of:
The Technical Paper also reinforces that reducing uncertainty is essential for producing reliable, repeatable and defensible results. Failure to manage uncertainty can reduce confidence in sampling data, potentially leading to incorrect conclusions about worker exposure and compliance with workplace exposure limits.
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Acknowledgements
AIOH activities are managed through committees drawn from occupational hygienists nationally. This Technical Paper has been prepared by the Technical Advisory subcommittee, with comments sought from AIOH members generally and active consultation with particular members selected for their interest and/or expertise in this area. Various AIOH members were contributors in the development of this Technical Paper.
Key contributors included: Brian Davies, David Noi, Linda Apthorpe, Ian Firth and Aleks Todorovic.
