WITH Environment Canada issuing heat warnings for several regions of British Columbia and temperatures expected to climb into the mid-30s in some areas of the province this week, WorkSafeBC on Tuesday reminded employers to take steps to protect workers from heat-related illness.
“Elevated temperatures increase the risk of heat stress and heat stroke, which can be serious and even life-threatening,” says Todd McDonald, head of Prevention Services at WorkSafeBC. “These illnesses are preventable, and employers have a responsibility to take steps to protect workers, whether they are indoors or outdoors.”
Between 2021 and 2025, WorkSafeBC accepted 335 heat-related injury claims, including 47 in 2025. Workers in a range of industries face increased risk during hot weather. Outdoor workers in construction, agriculture, transportation, and public works are at higher risk. However, indoor workers — including those in kitchens, warehouses, and manufacturing facilities — may also be exposed to high heat, especially in spaces without air conditioning.
To prevent heat stress, WorkSafeBC requires employers to conduct workplace-specific risk assessments and develop plans that outline controls, training, and safe work procedures. Employers should engage workers and/or joint health and safety committees in the process and monitor and adjust these plans and controls as needed.
What employers should do:
* Provide cool drinking water and regular rest breaks.
* Set up shaded or cooled recovery areas.
* Schedule strenuous work during cooler parts of the day.
* Improve ventilation and cooling in indoor work areas.
* Rotate workers between hotter and cooler environments.
* Train workers to recognize the early signs of heat stress in themselves and others and how to seek first aid. Symptoms can include excessive sweating, muscle cramps, nausea, weakness, dizziness, agitation, or confusion.
* Encourage workers to report symptoms early and speak up if conditions become unsafe.
What workers should do:
* Drink plenty of water (one glass every 20 minutes).
* Wear light-coloured, loose-fitting clothing made of breathable fabric, such as cotton.
* Wear sunscreen and apply regularly.
* Take rest breaks in a cool, well-ventilated area.
* Know your personal risk factors, such as medications and any pre-existing conditions.
* Watch for signs and symptoms of heat stress in yourself and co-workers.
Resources:
WorkSafeBC resources help employers and workers prepare for summer conditions:
