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SITE HEALTH & SAFETY PLAN GEOMATRIX i P 5.2.4 Heat Stress Hazards Heat stress is a major hazard, especially for workers wearing protective clothing. To avoid heat stress, drink plenty of fluids and take periodic work breaks. The signs,symptoms, and treatment f of heat stress include: • Heat rash,which may result from exposure to heat or humid air. • Heat cramps, which are caused by heavy sweating with inadequate electrolyte re- placement. Signs and symptoms include: muscle spasms and pain in the hands, feet, and abdomen. Persons experiencing these symptoms should rest in a cooler area, drink cool (not cold) liquids, and gently massage cramped muscles. • Heat exhaustion,.which occurs from increased stress on various body organs includ- ing inadequate blood circulation due to cardiovascular insufficiency or dehydration. Signs and symptoms include: pale, cool, moist skin; heavy sweating; dizziness; nau- sea; and fainting. Persons experiencing these symptoms should lie down in a cooler area, drink cool liquids with electrolytes (Gatorade, etc.),. remove any protective clothing, and cool body with wet compresses at forehead, back and neck, and/or arm- pits. • Heat stroke is the most serious form of heat stress. Temperature regulation fails and . P the body temperature rises to critical levels. Immediate action must be taken to cool the body before serious injury and death occur. Competent medical help must be ob- tained. Signs and symptoms are: red,hot, usually dry skin; lack of or reduced perspi- ration; nausea; dizziness and confusion; strong,rapid pulse; and coma. 5.2.5 Cold Stress Hazards Exposure to cold can cause the body's internal temperature to drop to a dangerously low level. This is called hypothermia. Exposure to temperatures below freezing can-cause frostbite of hands, feet, and-face. Symptoms of hypothermia include: vague, slow; slurred speech, + for etfulness memo g memory lapses, �i • inability-to use hands, • frequent-stumbling, • - drowsiness. To prevent hypothermia, stay dryand avoid exposure. Wear sufficient clothing in layers such that outer clothing is wind- and waterproof and inner layers retain warmth(wool or polypropylene). Keep hands and feet well protected at all times. I:IPROJECT 6508.0001document16508-04.doc