About the Presenter: Geoffrey A. Clark, MSc, CIH, ROH - WorkSafe BC Geoff Clark is a Senior Occupational Hygienist at WorkSafe BC.  He is a Certified Industrial Hygienist (CIH), a Registered Occupational Hygienist (ROH) and holds a Masters degree from the University of British Columbia.  Geoff has conducted thousands of assessments in many areas of occupational hygiene, […]