HAZARD: Carbon Monoxide fumes entering vehicle cabs

Safety Alert Type: 
British Columbia
Date of Incident / Close Call: 
Company Name: 
Details of Incident / Close Call: 

There have been several incidents reported recently where truck drivers have become overwhelmed by exhaust fumes within the cab of their truck.

The carbon monoxide fumes enter the cab of the truck through a leak or cracked flex pipe. The drivers have all complained of feeling dizzy or light headed and nauseous after inhaling the fumes even for just a short period.

Potential Hazards: Exposure to carbon monoxide gas will impair a driver’s ability to safely operate a truck, as the signs & symptoms include:

  • Dull headache
  • Weakness
  • Dizziness or Confusion
  • Nausea or vomiting
  • Shortness of breath
  • Blurred vision, and eventually
  • Loss of consciousness.


Learnings and Suggestions: 
  • Thorough pre-trip inspection to be conducted by the driver, specifically checking the condition of the flex pipe. A break or leak in the pipe can be identified by black marks appearing on the pipe from the escaping exhaust.
  • Regular periodic inspections completed by a certified shop mechanic.
  • Carbon monoxide detectors installed inside the cab of trucks as an early warning system before drivers begin to experience the associated negative effects. https://sensorcon.com/


For more information on this submitted alert: 

Tyson von den Steinen, Canadian Forest Products Ltd. (250) 962-3229



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