Occupational exposure to flour dust and grain dust in federally regulated workplaces

From: Employment and Social Development Canada

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Do you have concerns

Is this your workplace or industry

  • Flour mill
  • Grain elevator
  • Other grain-handling facility
  • Transportation of bulk grain or flour

If you answered “Yes”, refer to the Occupational exposure limit (OEL) for flour dust - Requirements and recommended best practices for minimizing employee exposure to flour dust and grain dust in flour mills in Canada.


  • Are you exposed to any flour dust or grain dust at your workplace?
  • Have you experienced any health symptoms like breathing difficulties or sore eyes or throat?
  • Have you experienced any skin and/or eye irritation?
  • Have you experienced symptoms of ill health not associated with a cold such as rhinitis (runny nose), red eyes fever or rashes?
  • Do you worry that any exposure to flour dust or grain dust in your workplace can make you ill?

Action to take

If you answered “Yes” to one or more of these questions, raise the issue with your supervisor and refer to the Internal complaint resolution process website.


Refer to Labour Program by telephone 1-800-641-4049 or consult canada.ca/workplace-health-safety.

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