T. Harris Environmental Management

Industrial workplaces involve complex hazards that require strong, consistent safety practices.

Ontario Regulation 851/90 outlines key requirements for machine guarding, workplace conditions, material handling, and worker training to help prevent injuries and maintain compliance.
Learn how to assess your facility and strengthen your safety program: https://tharris.ca/ontario-regulation-851-90/

After nearly 20 years with T. Harris Environmental Management Inc. (THEM), Richard Quenneville, CIH, ROH has transitioned to semi-retirement.

Richard has made significant contributions to the occupational hygiene profession and to our clients through his technical expertise, leadership, and dedication. We thank him for his many years of service and wish him all the best in this next chapter.

Read more about Richard's career and transition:
https://tharris.ca/richard-quenneville-transitions-to-semi-retirement/

When should employers conduct a heat stress assessment?
Our latest guide outlines key risk factors, symptoms, and practical considerations to help organizations prepare for warmer conditions.

Read the 2026 Heat Stress Guide: https://tharris.ca/when-to-conduct-a-heat-stress-assessment/

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Quand les employeurs devraient-ils effectuer une évaluation du stress thermique?
Notre guide le plus récent présente les principaux facteurs de risque, les symptômes et les considérations pratiques pour aider les organisations à se préparer à des conditions plus chaudes.

Lisez le guide 2026 sur le stress thermique : https://tharris.ca/fr/quand-effectuer-une-evaluation-du-stress-thermique/