Stay safe at work while beating the heat this summer
As summer temperatures rise, so does the risk of heat stress. Thousands of Canadians working in both indoor and outdoor environments – from mining mills to sawmills – are affected by heat stress-related issues each year. Exposure to warmer working environments can become dangerous if the right precautions aren’t taken.
Heat stress occurs when the body can’t cool itself down properly. Lighter symptoms include dizziness, headaches, and muscle cramps, but these symptoms can escalate into more serious cases resulting in heat stroke.
It’s important to be on the lookout for these heat stress-related symptoms:
- Higher body temperatures
- Hot, dry skin
- Increased heart and breathing rates
- Headaches, nausea, dizziness, and vomiting
- Muscle cramps
Later symptoms can affect consciousness, resulting in fainting and seizures. Some people present other symptoms, including confusion, hostility, or seemingly intoxicated behaviours.
Heat-related illness can affect anyone, especially during long hours of physical activity in hot environments. To stay safe on the job, follow these important tips:
- Drink plenty of water, even if you’re not feeling thirsty. A general rule to follow is consuming one cup (250 millilitres, or half a regular-sized bottle of water) every 20 minutes.
- Take regular breaks in a cool or shaded area. If you have access to a covered area, such as an awning, tree covering, or gazebo, take advantage of it during breaktime.
- Wear lightweight, breathable clothing and a hat if you’re outside. Darker colours retain heat while lighter colours refract sunlight and contribute to coolness.
- Watch for signs of heat stress in yourself and your coworkers. Be sure to speak up if someone seems unwell.
Employers and supervisors have a responsibility to provide a safe workplace. To protect workers from heat stress hazards, it’s important to provide access to drinking water and other cooler beverages, including ice pops. Regular rest breaks and training on how to prevent heat-related illness also help keep workers safe and healthy.
Workplace Safety North (WSN) offers a series of resources from various health and safety system partners to support you in maintaining a safe and cool workplace.
Related
Beat the Heat – Safety Meeting Talk and Leader Guide – WSN
Hazard Alert – Heat Stress can be a Killer – WSN
Ontario Mine Rescue Heat Stress Report and Heat Exposure Standard – WSN
Heat Stress vs. Heat Stroke – Comparison Poster – SAIF
Heat Stress Toolkit – Occupational Health Clinics for Ontario Workers
Managing Heat Stress at Work – MLITSD