Heat Stress
Employees who are exposed to heat stress risk factors should receive training on how to recognize and prevent the early signs of heat stress and what to do if these symptoms occur. Warning signs of heat stress can range from visible sweating, dizziness, fainting, nausea, clumsiness, and confusion. These early symptoms should be taken seriously and monitored closely to prevent the progression to more serious conditions like heat stroke, which is a medical emergency. Details such as clothing must also be considered. In addition, the measurement of a hot environment involves more than just measuring the ambient air temperature. Radiant heat, air movement, and relative humidity are all factors that must be determined.
Signs and symptoms of heat-related illnesses:
- Blurred vision
- Confusion or erratic behavior
- Dizziness
- Fainting, collapsing
- Heavy sweating
- Muscle spasms
- Pale, clammy skin
- Weakness or fatigue
Recommendations for preventing heat stress include:
- Know the signs and symptoms and monitor yourself and coworkers
- Avoid working in direct sun or near other heat sources
- Use cooling fans and/or air conditioning and take frequent breaks
- Drink adequate amounts of water or an electrolyte drink (approximately 1 cup every 15 minutes)
- Wear lightweight, light-colored, and loose-fitting clothing
- Avoid alcohol, caffeinated drinks, or other diuretic drinks as well as heavy meals
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