Designated Hazardous
Substance Inspections

In Canada, Designated Hazardous Substances (DHS) are commonly found in buildings that generally pre-date 1978, and typically include materials such as acrylonitrile, arsenic, asbestos, benzene, coke oven emissions, ethylene oxide, isocyanates, lead, mercury, silica, and vinyl chloride.

DHS are required to be identified and managed appropriately for due diligence, occupant health and safety, or for demolition permit requirements. AiMS Environmental’s highly experienced DHS Inspectors conduct building inspections and bulk sampling surveys along the lines of the Occupational Health and Safety Act to identify any potential hazardous building materials.


Designated Hazardous Substance Inspections
Our DHS Inspections include:
  • Interior visual survey to identify any suspected hazardous building materials
  • Sampling of suspected materials
  • Laboratory analysis of bulk samples for building contaminants
  • Reporting, including Recommendations for Management strategies and/or third party abatement
  • Clearance air testing following abatement
AiMS Environmental also provides Hazardous Substance Awareness Seminars for property managers that outline the key issues surrounding hazardous substances, including:
  • Health effects of hazardous substances
  • Identification and sampling methods
  • Current regulatory framework
  • Management/Abatement strategies
  • Air testing
Designated Hazardous Substance Inspections