Heat Stress Training


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Heat Stress Training

  1. 1. Heat Stress
  2. 2. Hot work environments • Outdoor work in hot weather • Foundry work or smelting • Brick-firing, ceramics or glass manufacture 1a
  3. 3. Hot work environments • Rubber manufacture • Work in bakeries, confectioneries, kitchens • Laundry operations • Plastic Mold Operations 1b
  4. 4. Personal risk factors • Age, weight, physical fitness • Metabolism, medications, alcohol or drugs • Water and caffeine consumption • Medical conditions • Acclimatization 2a
  5. 5. Environmental risk factors • • • • Air temperature Humidity Radiant heat Conductive heat sources • Protective clothing • PPE 2b
  6. 6. Fatigue • • • • Blood circulates to upper layers of skin Less blood for internal organs Performance declines Coordination and alertness decline 3a
  7. 7. Response to fatigue • Rest in cool, shaded area • Take heat-relief breaks • Gradually adjust to working in heat 3b
  8. 8. Heat rash • • • • • • Results from the body’s natural cooling Body releases heat through sweat Sweat ducts become plugged Skin inflammation develops Prickly rash is uncomfortable Rash can become infected 4a
  9. 9. Response to heat rash • • • • Rest in a cool area Wash the skin Allow skin to dry Seek medical attention, if infected • Regularly bathe and dry skin 4b
  10. 10. Fainting • Blood accumulates in lower part of body • Brain does not get adequate blood supply • Sudden loss of consciousness 5a
  11. 11. Response to fainting • Rest in cool, shaded area • Gradually adjust to working in heat • Move around to circulate blood 5b
  12. 12. Muscle cramps Occurs in tired muscles when the worker sweats profusely and drinks large quantities of water 6a
  13. 13. Muscle cramps • Painful contractions in the muscle • Uncomfortable and temporarily disabling • Low salt level can cause spasms • Too much salt can cause cramps 6b
  14. 14. Response to muscle cramps • Rest in cool, shaded area • Drink about 5 to 7 ounces of fluids every 15 to 20 minutes • Avoid caffeinated beverages or alcohol 6c
  15. 15. Response to muscle cramps • Drink salted or carbohydrate replacement liquids for recovery • Gradually adjust to working in heat 6d
  16. 16. Heat exhaustion • Large amounts of fluid lost by sweating • Symptoms resemble early heat stroke • • • • Physically weak, fatigued, or faint Giddy, irritable, or mentally confused Nauseous Headache, dizziness, and/or lightheadedness 7a
  17. 17. Heat exhaustion • • • • Person continues to sweat Skin is clammy and moist Body temperature remains normal Person may vomit or lose consciousness 7b
  18. 18. Response to heat exhaustion • Rest in a cool, shaded area • Drink about 5 to 7 ounces of fluids every 15 to 20 minutes • Lay person down • Seek medical attention, if severe 7c
  19. 19. Heat stroke • Life-threatening condition • Body’s temperature regulatory system fails • Sweating becomes inadequate 8a
  20. 20. Heat stroke • • • • Person’s skin is hot and dry Skin appears red in color o Body temperature is above 103 F Person is mentally confused or delirious • Person can have convulsions or become unconscious 8b
  21. 21. Response to heat stroke • • • • • Get immediate medical attention Remove to cool, shaded area Soak clothing with cool water Fan body vigorously Never leave unattended 8c
  22. 22. What can you do? • Report symptoms or signs immediately • Respond to heat illness • Know company procedures 8d
  23. 23. Measuring heat exposures • Heat index system • Health and safety agency testing 9a
  24. 24. Measuring heat exposures Work classifications: • • • • • • Light hand work Heavy hand work Heavy work with one arm Light work with two arms Moderate work with the body Heavy work with the body 9b
  25. 25. Controlling heat exposure Engineering controls • • • • • • • Shade Ventilation Air cooling Air circulation Shielding from radiant heat sources Insulating radiant heat sources Use of power assists and tools 10a
  26. 26. Controlling heat exposure Personal protective equipment • • • • Ice vests Water-cooled garments Air supply systems Wet clothing, headbands, or bandanas 10b
  27. 27. Controlling heat exposure Work practices • • • • • • • • • Use intermittent rest periods Drink small quantities of water frequently Use relief workers Use the buddy system Pace the work Reduce physical demands Provide cool recovery or shaded rest areas Schedule work for cooler times of the day Wear light, loose-fitting, breathable clothing 10c
  28. 28. REVIEW If you notice a person with the following symptoms: Physically weak, fatigued, faint, giddy, irritable, mentally confused, nauseous, headache, dizziness, and/or lightheadedness. These are signs of? Heat Exhaustion
  29. 29. Review Cont. If a person’s skin is hot and dry skin appears red in color body temperature is above 103°F person is mentally confused or delirious person can have convulsions or become unconscious These are signs of? Heat Stroke
  30. 30. Review Cont. What do you do when a Coworker is ill from the heat? Call a Supervisor for help, or 911 if Supervisor is not available. Move to a cooler location. Fan and mist water on person and apply ice bags Provide cool drinking water
  31. 31. Review Cont. Name some Preventive Measures: •Ventilation •Air cooling •Air circulation •Ice vests •Water-cooled garments •Wet clothing, headbands, or bandanas •Use intermittent rest periods •Drink small quantities of water frequently •Provide cool rest areas •Wear light, loose-fitting, breathable clothing
  32. 32. Questions?