Team Leads

Joanna Tam brings more than 25 years of experience in occupational hygiene, project safety management, and health and safety training. Over the course of her career with CrossSafety (previously REA), she has managed hundreds of client projects across industrial, institutional, infrastructure, government and construction environments. Her work has spanned manufacturing facilities, water and wastewater operations, transit projects, retail, warehousing, property management, and oil and gas— providing her with broad operational insight across both workplace and project settings.

Joanna holds an Honours Bachelor of Health Sciences, and a Master of Health Science in Occupational and Environmental Health from the University of Toronto’s Faculty of Medicine. She is a Certified Industrial Hygienist (CIH) through the Board for Global EHS Credentialing, an internationally recognized designation reflecting advanced expertise in exposure assessment and control.

Her technical expertise includes occupational hygiene assessments, confined space hazard analysis and program development, machinery safeguarding evaluations, electrical safety practices, lock-out/tag-out procedures, fall protection planning, and railway and marine operations safety. In addition, Joanna is an experienced instructor, delivering training in project safety management, supervisory competency, hazard assessment, incident investigation programs, WHMIS, confined space as well as Joint Health and Safety Committee certifications.

 As Managing Principal and Team Lead – Occupational Health and Hygiene, Joanna provides practical, systems-focused guidance that helps organizations manage risk, strengthen compliance, and build durable internal safety capacity across diverse operational environments.

LinkedIn: Joanna Tam MHSc CIH | LinkedIn