Safety Bulletins
Heat Stress
During the summer months we want to be especially cautious of staying hydrated when working in high temperature conditions. As workers in the field and working in extreme temperatures we want to make sure you are adhering to the following;
- Drinking enough fluids to replace those lost through sweating and breathing
- Take breaks in the shade or a cool area, as needed to avoid heat exhaustion or collapse
- Report heat stress-related symptoms in themselves or co-workers
- Minimize intake of caffeine, and avoid sugary drinks
There are three types of heat illnesses; heat cramps, heat exhaustion and heat stroke. All of which can be caused by; the body's inability to maintain a normal temperature of 37 degrees Celsius, long exposure to hot conditions, overexposure to the sun, lack of fluids to replace lost body fluids, vigorous or hard labor in a hot environment.
Symptoms of Heat Exhaustion
- excessive sweating
- cold, clammy, pale skin
- weak and rapid pulse
- nausea and vomiting
- unconsciousness
- blurred vision
- dizziness
- cramps in legs and abdomen
Treatment for Heat Exhaustion would be to get worker in a cool place with legs elevated, give plenty of fluids and remove excessive clothing. If worker is vomiting or unconscious seek medical help immediately.
Symptoms of Heat Stroke (Life threatening and have two forms 1. Classic - when the body's temperature control fails & 2. Exertional - occurs as a result of heavy physical exertion in high temperatures)
- body temperature rising rapidly to 40 degrees Celsius and above
- pulse weakens more and more over time
- flushed, hot skin. May be dry or sweaty
- vomiting
- restlessness
- convulsions
- unconsciousness
- Headaches
- dizziness
Treatment for Heat Stroke would be to seek medical help immediately as heat stroke is deadly. Reduce body temperature to prevent brain damage (remove clothing and give a cool bath, cover with wet sheets/towels and use a fan to cool air overtop. Repeating until body temperature is under control.)