Fibrous minerals and dust – managing the risks Part 2 Dust management in drilling operations
Please read this before using presentation Ø Ø This presentation is based on content presented at the Exploration Safety Roadshow held in December 2010 It is made available for non-commercial use (e. g. toolbox meetings) subject to the condition that the Power. Point file is not altered without permission from Resources Safety Supporting resources, such as brochures and posters, are available from Resources Safety For resources, information or clarification, please contact: RSDComms@dmp. wa. gov. au or visit www. dmp. wa. gov. au/Resources. Safety 2
Is this a problem? 3
Definitions Ø Dust § § Ø Generic term Range of potentially hazardous particulates Nuisance dust § § Dust with no inherent toxic profile Excess can overload lungs 4
Other particulates Harmful health effects Ø Silica – lung damage Ø Metal dusts § § § nickel – cancer manganese – manganism lead – damage to central nervous system, kidneys, blood cells 5
Latent health effects Ø Delayed § Ø Onset of health effects following exposure Insidious § Progressive and often irreversible changes to health 6
Dust management Ø Ø Regulatory focus on fibre and dust management in mining Statutory obligation to manage dust emissions in drilling operations Obligation to monitor exposures to atmospheric contaminants Ensure exposures do not exceed occupational exposure standards (OES) 7
Dust emission points 8
Controlling dust Use water Ø Fog Ø Foam Ø Binders Ø Surfactants 9
Potential controls Ø Trialling of dust suppression agents (e. g. foam, fog) Ø Automated sampling Ø Sample conveyors Ø Remote operating controls Ø Operating cabins 10
Any questions? For further information please contact: Chris White chris. white@dmp. wa. gov. au 0417 956 999 11
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