Temperature and heat hazard by mzgin m. ayoob
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what is the hazards of temperature and heat
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Temperature and heat hazard by mzgin m. ayoob
- 1. Heat and Temperature Hazards Prepared by: Mzgin M. Ayoob M.Sc.student
- 2. Objectives • What is the heat and temperature hazards? • How Heat Affects the Body • What is the hot stress? • Who to suppress risk?
- 3. k
- 4. heat: measure of the ability of a substance, or more generally of any physical system, to transfer heat energy to another physical system
- 5. Temperature is the average movement of the molecule at specify volume
- 6. Normal Temperature Average Human temperature is 98.6 98.6°F -/+ 0.9°F Or 37°C -/+ 0.5 °C
- 7. Extreme heat is defined as temperatures which hover 10 degrees or more above the average high temperature for a region Extreme heat
- 9. Very hot and very cold environments can be dangerous to your health
- 10. • by losing water through the skin and sweat glands and as the last extremity is reached by panting, when blood is heated above 98.6degrees • The heart begins to pump more blood flow • water diffuses through the skin as perspiration • The heart is pumping a torrent of blood through dilated circulatory vessels; the sweat glands are pouring liquid-including essential dissolved chemicals, like sodium and chloride onto the surface of the skin. How Heat Affects The Body
- 11. Heat Stroke Heat Stroke is the most serious heat heatrelated disorder. Body becomes unable to control its temperature. – Body temperature rapidly rises – Sweating mechanism fails – Body is unable to cool down Body temperature can rise to 106 106°F or higher in 10 to 15 minutes. Heat stroke can cause death or permanent disability if emergency treatment is not given
- 12. Heat Exhaustion •dehydration causes blood volume to decrease. •The body’s s response to excessive loss of water and salt. •Usually through excessive sweating. • Workers most prone to heat exhaustion are the elderly, employees with high blood pressure and those working in hot environments
- 13. . Heat Cramps Heat cramps usually affect workers who sweat a lot during strenuous activity. This sweating depletes the body's salt and moisture levels. Low salt levels in muscles causes painful cramps. Heat cramps may also be a symptom of heat exhaustion.
- 14. The Concept of Extreme Cold Extreme Cold conditions typically accompany Winter Storm events, . In the South, near freezing temperatures are considered extreme cold. Freezing temperatures can cause severe damage to citrus fruit crops and other vegetation. Pipes may freeze and burst in homes that are poorly insulated or without heat. In the North, extreme cold means temperatures well below zero.
- 15. Why not just use a thermometer?
- 16. Heat Index •The U.S. National Oceanographic and Atmospheric Administration (NOAA) developed the Heat Index system. •Find heat index •What the conditions like.
- 18. Fatality Due to Heat • Mike • Dishwasher in kitchen of a restaurant • Died July 7 • Last exposure to heat July 3 • 39 year old Male
- 19. Designate a Person to Oversee the Heat Stress • Hazard Identification • Water.Rest.Shade • Modified Work Schedules • Training • Monitoring for Heat Illness Symptoms
- 20. Summary • Working in extreme temperatures can have immediate and long-term health effects • Humidity and air movement influence the effects of extreme temperatures • Use the hierarchy of controls to find solutions to temperature-related work problems • What information was useful to you?
- 21. Video
Editor's Notes
- Are extreme temperatures a comfort issue or a safety issue?
- Extreme cold is as dangerous as unguarded machinery or other serious safety hazards. Here is just one example of an amputation due to extreme cold from OSHA’s files. We’ll discuss some aspects of this case later in the training.
- It’s clear that there are real hazards associated with working in extreme temperatures. These hazards are not just acute hazards – bad things that can happen immediately, but there are also long term health effects. We are going to evaluate heat and cold by looking at the potential hazards – who can be affected and how. We will then look at how we evaluate the exposure – How do we measure exposure? How much is too much? What factors are important to consider? Then we’ll look at controls – can we eliminate or reduce the hazard? What responsibilities do employers have? What can workers do on their own? Finally, we’ll look at enforcement – What are the laws, and how are they enforced? What role can the union play?