alPHa Affiliate Representative - Bjorn Christensen. Bjorn Christensen has worked for Regional Niagara Public Health for over 35 years. Bjorn is certified as a public health inspector with the Canadian Institute of Public Health Inspectors and holds a Bachelor’s degree in Environmental Health (Ryerson University) as well as a Master of Education (Brock University). Currently he is the Director of Environmental Health for Regional Niagara and the past president of the Association of Supervisors of Public Health Inspectors for the Province of Ontario. Bjorn is an active member on a number of provincial and federal committee’s dealing with Environmental Health issues and a sitting member on the Environmental and Public Health Advisory Council to the Underwriters Laboratory.