As the temperatures start to rise in the Spring and Summer, keep a close eye out for heat stress-related signs and symptoms. I have witnessed, or been involved in, two heat stress-related incidents in the last two years. Neither turned out to be serious, but they could have been if we were not observing the individuals at the time. Both involved new workers to our sites so we were unfamiliar with these individuals, their habits, their acclamation to the summer heat, and their conditioning for physical labor. As with most of our safety incidents, new workers at a site (whether subcontractors or new hires) are the folks that are most vulnerable to being involved in a safety incident, and we want to observe them very closely for a few days. Use the buddy system, and make note of any unusual behavior or actions that may tell you that an individual is struggling. In both cases of heat stress, there were clear signs that the worker was not feeling well and needed a break from the heat even though they did not ask for one. I have seen the tendency to ignore or even antagonize individuals who may be struggling and out of shape physically. But, this is a mistake. Give workers the benefit of the doubt and allow them to cool down and get rehydrated, even if it seems unfair to other workers who are better conditioned and more productive. Everybody is different and works at different paces.
Heat Stress (Exhaustion) Symptoms:
• Headache, dizziness, fainting
• Weakness, wet skin
• Irritability or confusion
• Thirst, nausea, or vomiting
• Pale or flushed complexion
• Muscle cramps
• Slightly elevated body temperature
• Fast and shallow breathing
Safety