1 Disaster Site Worker Safety Module 9 Safe Work Practices: Health Hazards.
Hazard Recognition Instructional Goal: the participant will know what conditions in the waste site...
Transcript of Hazard Recognition Instructional Goal: the participant will know what conditions in the waste site...
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Hazard RecognitionHazard RecognitionInstructional Goal:Instructional Goal: the participant the participant will know what conditions in the will know what conditions in the waste site work environment could waste site work environment could result in worker hazards and the result in worker hazards and the importance of accident or exposure importance of accident or exposure prevention.prevention.
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HazardHazard
any substance, situation, or any substance, situation, or condition that is condition that is capablecapable of of harming human health, property, harming human health, property, or the environmentor the environment
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RiskRisk
a measure of the a measure of the probabilityprobability and and severityseverity of a hazard to harm human of a hazard to harm human health, property, or the health, property, or the environmentenvironment
Risk Risk 00
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SafetySafety
defined as a defined as a judgment of the judgment of the acceptability of riskacceptability of risk
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Site-Specific HASPSite-Specific HASP
For safety of workers protective For safety of workers protective methods must be identified.methods must be identified.
A model can be utilized to help A model can be utilized to help recognize hazards involved in each recognize hazards involved in each task performed at the waste site.task performed at the waste site. Job Safety Analysis - Task specificJob Safety Analysis - Task specific
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Job Hazard StepsJob Hazard Steps
identify the site tasks that have identify the site tasks that have the potential for injury or illnessthe potential for injury or illness
list the steps involved to list the steps involved to perform the taskperform the task
use the steps to identify use the steps to identify potential hazards associated potential hazards associated with each stepwith each step
determine the best method of determine the best method of protectionprotection
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Hazard RecognitionHazard Recognition
an accurate assessment of all the an accurate assessment of all the hazards posed by the waste site is hazards posed by the waste site is nearly impossible due to the large nearly impossible due to the large number and variety of substancesnumber and variety of substances
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Chemical Hazard ID Chemical Hazard ID SystemsSystems
NFPA 704 SystemNFPA 704 System
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Chemical Hazard ID Chemical Hazard ID SystemsSystems
DOT LabelsDOT Labels
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Hazard RecognitionHazard Recognition
ionizing radiation ionizing radiation chemical health hazardchemical health hazard chemical physical hazardchemical physical hazard site and equipment hazardssite and equipment hazards environmental hazardsenvironmental hazards biological hazardsbiological hazards
A working environment may be characterized by any combination of the following hazards
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Multiple hazardsMultiple hazards Materials may have more than one hazard.Materials may have more than one hazard.
11, primary hazard, primary hazard22 ,secondary hazard or subsidiary hazard. ,secondary hazard or subsidiary hazard.
EXAMPLE: gasoline1 fire hazard - flammable. 2 chemical health hazard - organic solvent
NOTE: A worker must be aware of the multiple hazards of the materials they deal with to be protected from them.
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Ionizing RadiationIonizing Radiation
Ionizing radiation is radiation that Ionizing radiation is radiation that has sufficient energy to remove has sufficient energy to remove electrons from atoms. electrons from atoms.
alphaalpha betabeta gammagamma
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Chemical Health HazardChemical Health Hazard
Corrosive class substances
polychlorinated biphenyls
target organ poisons
irritants mutagens teratogens asphyxiants carcinogens
Health hazards cause adverse health effects and may be encountered on a waste site.
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Chemical Physical HazardChemical Physical Hazard
Chemical hazards that cause physical injury.
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combustible liquids, flammable gases, combustible liquids, flammable gases, aerosols and liquidsaerosols and liquids
flammable solidsflammable solids
explosives; pyrophoricsexplosives; pyrophorics
oxidizers; organic peroxidesoxidizers; organic peroxides
unstable/reactives; water reactivesunstable/reactives; water reactives
Fire and ExplosionsFire and Explosions
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Fire PreventionFire Prevention
only qualified personnel to monitoronly qualified personnel to monitor use proper precautions and use proper precautions and
proceduresprocedures isolate potential ignition sourcesisolate potential ignition sources use non-sparking, explosion proof use non-sparking, explosion proof
equipmentequipment follow established safe work follow established safe work
practicespractices
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Oxygen DeficiencyOxygen Deficiency
displacement by displacement by another gasanother gas
consumption consumption during a chemical during a chemical reactionreaction
combustioncombustion
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Site and Equipment HazardsSite and Equipment Hazards
holes or ditchesholes or ditches precariously positioned objectsprecariously positioned objects sharp objectssharp objects
steep gradessteep grades uneven terrainuneven terrain unstable surfacesunstable surfaces
slippery surfacesslippery surfaces
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NoiseNoise
effects of noise can effects of noise can include:include:workers being startled, workers being startled,
annoyed, or distractedannoyed, or distractedphysical damage to the physical damage to the
ear, pain, and temporary ear, pain, and temporary or permanent hearing or permanent hearing lossloss
inability to communicate, inability to communicate, interferenceinterference
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Electrical HazardsElectrical Hazards
overhead power linesoverhead power lines downed electrical linesdowned electrical lines unmarked buried cablesunmarked buried cables defective insulationdefective insulation charged capacitorscharged capacitors lightninglightning
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Prevent Electrical AccidentsPrevent Electrical Accidents
regular inspection of equipmentregular inspection of equipment training on power toolstraining on power tools use of low voltage and GFCIsuse of low voltage and GFCIs assure groundingassure grounding energy isolation (LOTO)energy isolation (LOTO) suspend work during electrical suspend work during electrical
stormsstorms
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Other Site HazardsOther Site Hazards
heavy equipmentheavy equipment PPEPPE power toolspower tools lifting and moving lifting and moving
drums/containersdrums/containers slips, trips, fallsslips, trips, falls excavation hazardsexcavation hazards
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Environmental HazardsEnvironmental Hazards
Environmental conditions Environmental conditions posed by the site.posed by the site.
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Heat StressHeat Stress
avoid overprotectionavoid overprotection train personnel that will wear train personnel that will wear
PPEPPE frequently monitor personnelfrequently monitor personnel carefully schedule work and carefully schedule work and
rest periodsrest periods drink plenty of fluidsdrink plenty of fluids
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Normal
Loss of muscle control
Shivering
Possible Death
88
95
92
98.6
HypothermiaHypothermia
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Cold Exposure PreventionCold Exposure Prevention
To guard against these hazards: Wear appropriate clothing. Have warm shelter readily
available. Carefully schedule work and
rest periods. Monitor workers' physical
conditions.
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Cold Exposure TreatmentCold Exposure Treatment
Frost-damaged areas should be treated as follows: Seek medical attention immediately. Rewarm the frozen part quickly by
immersing it in warm water. Do NOT allow the victim to walk on
frozen feet. Elevate the feet after warming. Prevent contact between the injured
part and any surface except a sterile bandage.
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Other Environmental Other Environmental HazardsHazards
Plants that cause severe allergic reactions in some people. (poison ivy)
Venomous insects that can cause severe allergic reactions in some people. (hornets, wasps and bees)
Snake and animal bites. Insect bites can cause severe
illness. (ticks and spiders)
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Biological HazardsBiological Hazards
PathogensPathogens choleratyphoid
Bloodborne diseasesBloodborne diseaseshepatitis B virus (HBV)hepatitis B virus (HBV)human human
immunodeficiency immunodeficiency virus (HIV)virus (HIV)
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Minimize Exposure Minimize Exposure
Do not clean up blood or body fluids unless you have been trained.
Know what to do before an emergency occurs.
Be sure to wash your hands and remove any PPE before eating, drinking, smoking, or handling contact lenses.