Dennis Ryan is the president of Compass Health & Safety Ltd. Dennis is a graduate of Northern Alberta Institute of Technology, Biological Sciences and the University of Alberta (UofA) Occupational Health and Safety (OHS) diploma and certificate programs. During his 45-year career in health and safety he obtained certifications in safety (CRSP) and occupational hygiene (OHST). Over the last 30 years, he instructed various (OHS) courses at the UofA and at other secondary institutions. Dennis has written numerous articles that have been published in various health and safety publications in North America. http://compasshealthandsafety.com