Basic concept of hazard

For discussion purpose

1. Basic Concept of Hazard Jelo Hagos

2. Learning competencies The learners: 1. Define hazards; 2. Give examples of the types of hazards; and 3. Explain the impact of various hazards on different exposed elements.

3. Definition of Hazard A hazard is a situation that poses a level of threat to life, health, property or environment. Most hazards are dormant or potential, with only a theoretical risk of harm; however, once a hazard becomes “active” it can create an emergency. One key concept in identifying a hazard is the presence of stored energy that, when released, can cause damage.

4. Hazardous situations

5. 3 Modes of Hazards Dormant. The situation presents a potential hazard, but no people, property, or environment is currently affected. Armed. It refers to people, property, or environment. Active. A harmful incident involving the hazard has actually occurred. Often this is referred to not as an “active hazard” but as an incident, emergency, incident, or disaster.

6. Common Types of Hazards Chemical Hazards – Chemicals can affect the skin by contact or the body either through the digestive system or through the lungs if air is contaminated with chemicals, vapor , mist or dust.

7. Common Types of Hazards 2. Noise Hazards – excessive noise can disrupt concentration, interfere with communication, and result in loss of hearing.

8. Common Types of Hazards 3 . Radiation Hazards – equipment such as radioactive trace element used in analytical chemistry produce ionizing radiation.

9. Common Types of Hazards 3. Electrical hazards – these include the risk of injury from all forms of electrical energy.

10. Common Types of Hazards 3. Lighting hazards – Inadequate lighting levels are a potential safety hazard.

11. Common Types of Hazards 3. Vibration hazards – This includes whole-body vibration and also more localized vibration effects.

12. Common Types of Hazards 3. Temperature hazards – Extremes of cold or heat can cause problems such as tiredness, vulnerability to infections or reduced capacity to work.

13. Common Types of Hazards 3. Biological hazards – these include insects, bacteria, fungi, plants, worms, animals and viruses.

14. Common Types of Hazards 3. Ergonomic hazards – covers risk of injury from manual handling procedures, incorrectly designed desks or work stations, audio and visual alarms, and color coding control mechanisms.

15. Common Types of Hazards 3. Other hazards – Include stress, fatigue, the effects of shift work, and even assaults from other people.

16. Effects of Chemical Hazards Effects on central nervous system, lungs, digestive, digestive system, circulatory system, skin, reproductive system. Short term (acute) effects such as burns, rashes, irritation, feeling unwell, coma and death. Long term (chronic) effects such as mutagenic (affects cell structure), carcinogenic (cancer), tetra genic (reproductive effect), dermatitis of the skin, and occupational asthma and lung damage.

17. Effects of Noise Hazards High levels of industrial noise will cause irritation in the short term, and industrial deafness in the long term.

18. Effects of Temperature Hazards Personal comfort is best between temperatures of 16 degree Celcius and 30 degree Celcius , better between 21 degree Celcius and 26 degree Celcius . Working outside these temperature ranges may lead to becoming chilled, even hypothermia in the colder temperatures, and may lead to dehydration, cramps, heat exhaustion, and hyperthermia in warmer temperatures.

19. Effects of Being struck by moving object Hazards This hazard could be a projectile , moving object or material. The health effect could be lacerations, bruising, breaks, eye injuries and possibly death.

20. Effects of Being struck by Crushed by Heavy Equipment Hazards A typical example of this hazard is tractor rollover. Death is usually the result.

21. Effects of Vibration Hazards It can affect the human body in the hand arm with white-finger or Raynaud’s Syndrome, and the whole body with motion sickness, giddiness, damage to bones and audits, blood pressure and nervous system.

22. Effects of Radiation Hazards Radiation can have serious effects. Skin cancer, other cancers, sterility, birth deformities, blood changes, skin burns and eye damage are examples.

23. Activity 1: Questions to Ponder 1. Can you identify possible hazards in your place? 2. What are the impacts of the hazards to your health and to your performance at work? 3. Does your community conduct information dissemination regarding the various hazards? What are the steps taken by your community so as not to put their citizens at risk?

24. Online sources https://www.google.com.ph/ search?hl = en-PH&authuser =0&biw=1366&bih=657&tbm= isch&sa =1&ei=iqnzW6P5JMvpwQPwrImQBA&q= powerpoint+background&oq = powerpoint+background&gs_l =img.3..0l10.1811463.1815908..1816156...0.0..0.292.2688.6j13j2......0....1..gws-wiz-img.......0i67.zZ-uA-0rf30#imgrc=F6WtTSsw_jJu6M: https://www.google.com.ph/ search?biw =1366&bih=657&tbm= isch&sa =1&ei=fMr0W46iDYub8wXsrImwBA&q= electrical+hazards +& oq = electrical+hazards +& gs_l =img.3...3091.3091..4038...0.0..0.0.0.......0....1..gws-wiz-img.S4mUYgtWfWc#imgrc=Glu5-kPZ3Qc8fM : https://www.google.com.ph/ search?biw =1366&bih=657&tbm= isch&sa =1&ei=YMn0W9u_J4OG8wXk2ZawAQ&q= radiation+hazards&oq = radiation+hazards&gs_l =img.3..0i67j0l9.278594.280767..281567...0.0..0.186.1474.0j10......0....1..gws-wiz-img.......0i7i30.CiUgIuRSPUE#imgrc= aoruLOzYwDCpTM : https://www.google.com.ph/ search?biw =1366&bih=657&tbm= isch&sa =1&ei=acf0W8jOCsej8AXg46PQCw&q= noise+hazards&oq = noise+hazards&gs_l =img.3..0l6j0i7i30l2j0i5i30j0i24.499254.499961..500292...0.0..0.218.838.0j3j2......0....1..gws-wiz-img.va9CPtp59Hw#imgrc=t8u0oqVz18xw1M : https://www.google.com.ph/search?q=chemical+hazards&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjviu68vOTeAhWDyrwKHe_XDnMQ_AUIDigB&biw=1366&bih=657#imgrc=Q4JEXDoRfGBArM : https://www.google.com.ph/ search?biw =1366&bih=657&tbm= isch&sa =1&ei=9v_1W5uWEsXgvgSkmYrADQ&q= incorrectly+designed+desks&oq = incorrectly+designed+desks&gs_l =img.3...35825.35825..36438...0.0..0.157.157.0j1......0....1j2..gws-wiz-img.6wVFORIOtuU#imgrc=5IEgT9kwo4e_eM:

25. https://www.google.com.ph/search?q=lightning+hazards&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjb84Hs0uTeAhXLXbwKHfyNDvcQ_AUIDigB&biw=1366&bih=657#imgrc=ZisgZs7oa_XiUM : https://www.google.com.ph/ search?biw =1366&bih=657&tbm= isch&sa =1&ei=1v31W8nfM4rbvASg1KbADQ&q= aids&oq = aids&gs_l =img.3..0i67l2j0l2j0i67j0l5.81970.83744..83942...0.0..0.200.676.0j3j1......0....1..gws-wiz-img.BLDGfixG6qQ#imgrc=rhNIXjsi2g0GYM : https://www.google.com.ph/ search?biw =1366&bih=657&tbm= isch&sa =1&ei=YP31W7eqJoHrvASI4K_4DQ&q= hepatitis&oq = hepatitis&gs_l =img.3..0l10.114044.116169..116473...0.0..0.170.1378.0j9......0....1..gws-wiz-img.zJmnDQTYARU#imgrc= FCktzpJSIxOJpM : https://www.google.com.ph/ search?biw =1366&bih=657&tbm= isch&sa =1&ei=t_z1W8n4IsrevASc_IfQCA&q= brucellocis&oq = brucellocis&gs_l =img.3..0i10i24.164373.167162..167496...0.0..0.199.1911.0j11......0....1..gws-wiz-img.......0j0i67j0i10.haQm7V6fMzY#imgrc=iFyi5hHKaeVTlM : https://www.google.com.ph/ search?biw =1366&bih=657&tbm= isch&sa =1&ei=aPn1W8mhD5iavQT6oLjoDw&q=allergy+in+bird%27s+feather&oq=allergy+in+bird%27s+feather&gs_l=img.3...827569.834842..836113...0.0..0.1112.7593.3-1j1j2j5j1......0....1..gws-wiz-img.......0j0i67.lqoCB25Y77g#imgrc=SqYUd8q80yBGTM : https://www.google.com.ph/ search?biw =1366&bih=657&tbm= isch&sa =1&ei=IPj1W_X4HMXrvgTDvILAAw&q=temperature++ hazards&oq =temperature++ hazards&gs_l =img.3..0i7i5i30l2.314961.322175..322485...0.0..0.2275.7146.7-1j2j1......0....1..gws-wiz-img.5N7nnT53IkI#imgrc=1-f5q03c8YuTGM:

26. https:// www.youtube.com/watch?v=uka1HXm8VWQ https:// www.youtube.com/watch?v=M5CCzD-Hfds https://www.youtube.com/watch?v=0SeJfbr2cH4

27. https://www.google.com.ph/ search?biw =1366&bih=657&tbm= isch&sa =1&ei=rgD2W_nuCsKAvwTyi5zQCw&q= manual+handling+procedures&oq = manual+handling+procedures&gs_l =img.3..0j0i5i30j0i24l8.17563.17563..18027...0.0..0.155.155.0j1......0....1j2..gws-wiz-img.9gdecY2MJZc#imgrc=cb4dwFSn3Z_kRM : https://www.google.com.ph/ search?biw =1366&bih=657&tbm= isch&sa =1&ei=wQD2W_qXM8vyvgTWwo-QCA&q= stress&oq = stress&gs_l =img.3...0.0..7...0.0..0.0.0.......0......gws-wiz-img.sTh7WoG0yxc#imgrc=ywdNb16EfFOlvM : https://www.google.com.ph/ search?biw =1366&bih=657&tbm= isch&sa =1&ei=UAH2W-WJOYPdvgTyz7aABg&q= fatigue&oq = fatigue&gs_l =img.3..0i67l2j0j0i67j0l2j0i67j0l3.63322.65000..65291...0.0..0.158.995.0j7......0....1..gws-wiz-img.xzPmTYrcc2s#imgrc= ApDliirOnsJSFM : https://www.google.com.ph/ search?biw =1366&bih=657&tbm= isch&sa =1&ei=xwH2W8uDEY-QwgP25oiwBg&q= assaults+from+other+people&oq = assaults+from+other+people&gs_l =img.3...39287.48059..48332...1.0..0.322.4485.0j22j4j1......0....1..gws-wiz-img.......0j0i67j0i5i30j0i24j0i8i30.z28H7w-jjOU#imgrc=RZnS9--Nozza3M : https:// www.youtube.com/watch?v=v8iQ3eiinaE https://www.youtube.com/results?search_query=effects+of+noise+hazard