About Winnipeg Air Testing

Mission Statement

To help companies provide a safe and healthy workplace through the application of good science and sound judgement.


Douglas Wylie, CIH, ROH, CRSP, CRM, C.I.M.

  • Certified Industrial Hygienist
  • Registered Occupational Hygienist
  • Canadian Registered Safety Professional
  • Canadian Risk Manager Designation
  • Professional Designation in Management and Business Administration

Doug Wylie has a degree in health physics from McMaster University in Hamilton, Ontario and 30 years of experience in the field of occupational hygiene and environmental health. Mr. Wylie was an Occupational Hygienist at the Department of Occupational and Environmental Medicine at the Health Sciences Centre where he developed the chemical hazards programs as well as the hazardous waste program. Mr. Wylie served as an Industrial Hygienist for the Workplace Safety and Health Division, where he conducted exposure monitoring, and facility audits to verify regulatory compliance. Doug Wylie has conducted over 2,000 investigations involving identifying and quantifying exposures to chemical and physical agents in a vast variety of occupational and environmental settings. He has experience testifying as an expert witness on health and safety on topics such as mould and exposure to chemicals.


Winnipeg Air Testing offers services of professional and technical competence in the practice of occupational hygiene. To ensure a professional program, Winnipeg Air Testing prescribes to the goals and objectives of accrediting bodies, including their requirement for ongoing training and professional development requirements, and adherence to their codes of ethics. To ensure that all work meets professional standards, all projects are carried out by or under the direct supervision of occupational hygienists who are:

Registered with the Canadian Registration Board for Occupational Hygienists (CRBOH), and hold the designation of Registered Occupational Hygienist (ROH).
Certified by the American Board of Industrial Hygiene (ABIH), and hold the designation of Certified Industrial Hygienist (CIH).
Registered with the Association for Canadian Registered Safety Professionals (ACRSP), and hold the designation of Canadian Registered Safety Professional (CRSP).
The Global Risk Management Institute, Inc. (GRMI) is an institute that issues the CRM and is an alumni association of individuals who hold the Canadian Risk Management (CRM), Fellow in Risk Management (FRM) or RIMS Fellow (RF) designations.
Graduates of the program will have a broader knowledge of business and management principles and earn right to use the designation C.I.M. (“Certified in Management”). The program, which normally takes four years to complete, consists of seven required courses and one elective course

Selecting an Occupational Hygienist

In selecting an individual to perform a role in occupational hygiene, the employer is bound by “due diligence” considerations and “general duty” provisions. What are the consequences if the employer selects someone who does not have the knowledge and skill sets necessary to provide occupational hygiene services for the matter at hand, and the work is done in a manner that places one or more workers at risk? Not only may the worker(s) experience adverse consequences, but the employer faces a liability under provincial legislation. Regulatory inspectors require that the occupational hygiene related work be performed by qualified personnel. In some cases, workers or unions may be hesitant or unwilling to accept work performed by an unaccredited or uncertified individual. In addition, less qualified hygienist may compensate for their uncertainty in judgement by performing additional tests, inflating safety factors or recommending additional controls to compensate for their uncertainty. The employer bears the costs of these unnecessary and avoidable costs. Accordingly, it is in everyone’s best interest if those performing occupational hygiene work are before-the-fact demonstrably qualified. The most common way this demonstrated in any profession is by certification by a recognized professional body. Accreditation is a recognition of an individual’s knowledge and ability in the field of occupational hygiene. By selecting an accredited occupation hygienist, you are protecting yourself, the company, and your workers. You have accepted the decision of a professional association that has prequalified someone who has demonstrated the requisite characteristics to be designated as an accredited occupational hygienist. There are two widely recognized North American hygiene accreditations. The Canadian Registration Board of Occupational Hygienists grants the professional designation of Registered Occupational Hygienist (ROH). The American Board of Industrial Hygienists grants the professional designation Certified Industrial Hygienist (CIH). Information and rosters for each of these organizations can be bound at their respective websites

Websites for North American Accrediting Bodies

Canadian Registration Board of Occupational Hygienists American Board of Industrial Hygienists Accreditation is awarded by these boards on the basis of successfully meeting educational, professional experience and passing written and/or examinations. Generally speaking, the general criteria for achieving accreditation is as follows:

  • A minimum of a Bachelor’s Degree in a related science
  • Five (5) years of professional experience
  • Letters of reference from peers and supervisor
  • Eight to 14 hours of written and/or oral examination

In addition to meeting the above criteria, CIHs and ROHs must keep their skills current through the mandatory maintenance schedules set out by the respective professional boards. In addition, individuals bearing these credentials must adhere to a strict code of ethics intended to protect the client. The Code of Ethics for Occupational Health Professionals is provided below.

The Code of Ethics for Occupational Health Professionals

Industrial Hygienists shall: 1.    Practice their profession following recognized scientific principles with the realization that the lives, health and well-being of people may depend upon their professional judgment and that they are obligated to protect the health and well-being of people. 2.    Counsel affected parties factually regarding potential health risks and precautions necessary to avoid adverse health effects. 3.    Keep confidential personal and business information obtained during the exercise of industrial hygiene activities, except when required by law or overriding health and safety considerations. 4.    Avoid circumstances where a compromise of professional judgment or conflict of interest may arise. 5.    Perform services only in the areas of their competence. 6.    Act responsibly to uphold the integrity of the profession Anyone can call themselves an occupational hygienist. There is no legal protection of the use of the term. Therefore, the onus rests with the employer to select a competent occupational hygiene consultant. The simplest and most reliable way to do this is to use accredited professionals who carry the CIH and/or ROH designations. Unaccredited personnel may also be competent. However, when choosing to use unaccredited personnel, the onus rests with the employer to determine the suitability of their capabilities to a hygiene-related duty.

Partial List of Major Projects That Winnipeg Air Testing Staff has been involved in

  • Assessing former grow-ops for mould and moisture issues.
  • Magnetic fields from a 100,000 ampere cable
  • 2 year study of welding exposure across Manitoba under a grant from the Workers Compensation Board.
  • Expert witness on mould in Manitoba Court of Queen’s Bench.
  • Industrial hygiene program during clean up from train derailment involving benzene tanks.
  • Development and implementation of a worker and community exposure monitoring for a 4 month hazardous waste site remediation project in Winnipeg, Manitoba
  • Assessment of Environmental Impact of former wood treatment plant site, Winnipeg, Manitoba.
  • Predemolition hazard identification and mediation of the Canada Packers Meat plant, Winnipeg, Manitoba.
  • Mold and asbestos in the abandoned Metropolitan Theatre, Winnipeg, Manitoba
  • Study of carcinogens in the aerospace industry in Manitoba under grant by the Worker’s Compensation Board of Manitoba
  • Predemolition hazard identification and mediation of Manitoba Hydro Steam Plant, Amy Street, Winnipeg, Manitoba.
  • Evaluation of Laboratory Ventilation and Lab Practices in the Freshwater Institute, University of Manitoba campus, Winnipeg, Manitoba.
  • Performance of > 2000 occupational hygiene surveys in a wide range of industrial settings to evaluate compliance with existing standards.
  • Development of occupational and environmental exposure limits for chemicals for which there was no established standards.
  • Development of the Dermal Hazard Ratio: a system to predict the significance of dermal exposure to chemicals.
  • Environmental impact assessment of diesel fuel spill in a remote community in northern Manitoba.
  • Development of an industrial hygiene program for a northern mining company.
  • Testing for radiation contamination in metals waste from industrial processes.
  • Development of task-based risk assessment guide for printing company.
  • Development of a chemical storage system based on WHMIS and TDG labels/information.
  • Development of Manitoba provincial occupational radiation protection program.
  • Development of a hazardous waste program for a tertiary care and research hospital including both solid waste and wastes discharged to sewer.
  • Development of sampling/analytical strategy for pesticide storage facilities.
  • Emissions and Environmental Compliance from Burning of Railroad Ties.
  • Study of New Worker Training Programs in English-speaking Countries around the World conducted for the Worker’s Compensation Board.
  • Fire/Demolition at Manitoba Cold Storage Facility, Winnipeg.
  • Dermal assessment of waste oil and metals from diesel repair activities.