Dust exposure, effects, limits, control
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Presentation given at the Northern Ireland Safety Group meeting on 19 May 2014
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Dust exposure, effects, limits, control
- 1. Industrial Dust Matters Exposure / Effects / Limits / Control Mike Slater BOHS President 2014/15
- 4. How many people are exposed to dust at work?
- 5. Estimated as 9,200,000 4% 11% 9% 5% 9% 8% 9% 24% 9% 9% Source: John Cherrie, IOM
- 6. How does exposure occur?
- 20. Dust exposures typically occur when: Handling powders Cutting, grinding, drilling etc. Handling friable materials Disturbing dust settled on surfaces
- 21. What are the health effects?
- 23. Fibrosis
- 26. Lung Cancer
- 27. 0 1000 2000 3000 4000 Other agents Working as painter Shift work Mineral oils Diesel exhaust emissions Silica Asbestos Occupational cancer deaths by cause in Great Britain, 2005
- 28. 0 1000 2000 3000 4000 Other agents Working as painter Shift work Mineral oils Diesel exhaust emissions Silica Asbestos Occupational cancer deaths by cause in Great Britain, 2005
- 29. Respiratory disease Irritation Fibrosis COPD Asthma Lung cancer
- 39. HSG173 - A Structured Approach Initial Appraisal Basic Survey Detailed Survey
- 43. Brick Making – Silica Exposures 19% 40% 41% > WEL > 50% WEL < 50% WEL
- 45. Stone Cutting– Silica Exposures 29% 44% 27% > WEL > 50% WEL < 50% WEL
- 46. Risk of silicosis 0 5 10 15 20 25 0 0.04 0.08 0.12 0.16 0.2 0.24 0.28 Exposure to Air Concentration of RCS for 15 Years mg.m-3 PercentageRiskofSilicosis After15YearsWork
- 47. Risk of silicosis 0 5 10 15 20 25 0 0.04 0.08 0.12 0.16 0.2 0.24 0.28 Exposure to Air Concentration of RCS for 15 Years mg.m-3 PercentageRiskofSilicosis After15YearsWork
- 48. “Low toxicity” dusts “Substantial concentration of dust” • 10 mg/m3 inhalable • 4 mg/m3 respirable
- 49. “until safe limits are put in place, employers should aim to keep exposure to respirable dust below 1 mg/m³ and inhalable dust below 5 mg/m³” Institute of Occupational Medicine
- 50. “try to ensure that employers follow a precautionary standard of 2.5 mg/m³ for inhalable dust … and 1 mg/m³ for respirable dust.” TUC advice to safety representatives:
- 51. Cherrie J, Brosseau LM, Hay A, Donaldson K (2013) http://annhyg.oxfordjournals.org
- 52. Controlling exposure to dust
- 63. Prevention Engineering Work practices PPE Reduce exposure time Increase distance Working methods Standard procedures