cold stress. training objectives by the end of the session you will: know what cold stress is...
TRANSCRIPT
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Training Objectives
• By the end of the session you will:• Know what cold stress is• Understand the WorkSafeBC Regulations• Understand the risks• Know how to control the risk• Be able to identify symptoms• Know first aid response
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Agenda
• Definitions• Regulations• Responsibilities• Hazard Identification
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Agenda
• Risk Assessment• Risk Controls• Recognizing Symptoms• First Aid Procedures
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Definitions
• Accidental Exposure• Artificially Cold Workplace• Cold-Related Injuries• Cold Stress• Equivalent Temperature• Hypothermia
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Regulation
• The Regulation applies if workers may be exposed to thermal conditions that:• May cause cold stress injury• Could cause core body temp to fall• Are below ACGIH acceptable levels
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Regulation
• Assessment and exposure control• Cold stress controls• Heated shelters• Clothing and PPE
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Responsibilities
• Employer• Conduct risk assessments• Develop and implement exposure control
plan• Provide training• Provide heated shelter or vehicle
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Responsibilities
• Employer – continued
• Maintain records• Ensure adequate first
aid coverage
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Responsibilities
• Managers• Ensure that a cold stress assessment is
performed• Provide administrative controls• Ensure protective clothing is available• Ensure workers receive training
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Responsibilities
• Supervisors• Known or reasonably foreseeable cold
hazards• Health and safety of all workers• Safe work practices
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Responsibilities
• Workers• Follow safe work procedures• Seek shelter if displaying symptoms of
hypothermia• Wear adequate clothing• Avoid getting wet
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Responsibilities
• Workers – continued
• Wear eye protection when warranted• Wear PPE
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Responsibilities
• Joint OHS Committee• Advise the Employer on procedures and
systems• Help evaluate workplace conditions• Deal with worker complaints• Help with incident investigations and
worksite inspections
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Risk Identification
• Environmental Hazards• Job or Task-Related Hazards• Personal Risk Hazards
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Risk Identification
• Environmental Risks• Observe conditions and note hazards • Determine risks of accidental exposure• Look at previous history of exposure to
cold• Conduct risk assessment if hazard(s) is
present
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Risk Identification
• Job / Task Related Risks• Observe the tasks• Determine hazards that may expose
workers to risk• If task-related hazard is present implement
controls
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Risk Identification
• Personal Risks• Poor physical fitness• Not used to working in the cold• Cold or other flu like symptoms• Chronic illness or circulatory problems• Using certain drugs or medication• Exhibiting symptoms of fatigue• Vibration white finger disease
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Risk Assessment
• Documentation• Taking measurements• Categorizing the risk• Vibration and accidental exposure• Accidental exposure• Conditions that require a mandatory
assessment
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Risk Assessment
• Cold Stress Risk Assessment Form• Section One• Section Two
• Measurements• Category and control• Hand/arm vibration• Accidental exposure
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Risk Assessment
• Conditions Requiring Assessment• Conditions that cold cause cold stress or
injury• Conditions that could cause worker’s core
body temperature to fall below 36C• Conditions below levels classed by ACGIH
as “little danger”
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Risk Controls
• Working in hazardous wind chill conditions
• Contact with cold surfaces• Bare hands in a cold environment• Administrative controls• Personal Protective Equipment &
Clothing
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Risk Controls
• Wind Chill Conditions• Heated shelter or vehicle to be available• Worker instructions• Workers must wear adequate protective
clothing
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Risk Controls
• Contacting Cold Surfaces• Protective clothing and equipment• Wear protective gloves, mittens and
footwear• Wear insulated gloves when surfaces are
colder than -7C• Avoid skin contact with cold surfaces
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Risk Controls
• Hand Protection• Warm air jets, radiant heaters or warm
contact plates for hand warming• Controls designed for operation by gloved
hands
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Risk Controls
• Administrative Controls• Adjustment to the cold• Reduce activities performed outdoors • Remain well hydrated• Eat properly according to the cold climate• Establish a buddy system
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Risk Controls
• Personal Protective Clothing and Equipment• Wear insulated outer
clothing• Use protective clothing in
controlled environments• Change out of wet
clothing
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Risk Controls
• Personal Protective Clothing and Equipment – continued• Immediately change to dry clothing if
immersed in water• Wear PPE if danger of frostbite
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Prevention
• Understanding the personal risk factors• Following safe work practices• Proper use of clothing• Using shelters• Following guidelines for eating and
drinking
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Prevention
• Personal Risk Factors• Poor physical fitness• Not used to working in the cold• Cold or other flu like symptoms• Chronic illness or circulatory problems• Using certain drugs or medication that
inhibit the body’s response to the cold or impairs judgment
• Vibration white finger disease
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Prevention
• Safe Work Practices• Use a “buddy system”• Do a regular “self-check” for symptoms• If you discover a cold-related injury
NOTE: this last point isn’t finished.
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Prevention
• Proper use of clothing• Under Layer• Insulating Layer• Outer Layer
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Prevention
• Use of Shelters• Provide shelters at -7C or below • Use shelters at regular intervals• Remove outer clothing and allow
ventilation• Assess cold injury or hypothermia victims
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Prevention
• Eating and Drinking Guidelines• High caloric intake is recommended for
cold work• Warm sweet drinks available• Drink frequently• Avoid coffee• Avoid alcohol
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Recognizing Symptoms
• Mild Hypothermia• Moderate Hypothermia• Severe Hypothermia• Frostnip & Frostbite
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Recognizing Symptoms
• Mild Hypothermia• Feel chilled / cold• Goose bumps• Limited hand movement• Poor judgment• Shivering• Numb hands
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Recognizing Symptoms
• Moderate Hypothermia• Violent shivering or shivering has stopped• Inability to think / focus• Mild confusion
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Recognizing Symptoms
• Moderate Hypothermia – continued
• Slow, shallow breathing• Slurred speech• Poor co-ordination• Slow, weak pulse
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Recognizing Symptoms
• Severe Hypothermia• Shivering has stopped• Unconsciousness• Little or no breathing• Weak, irregular or non-existent pulse
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Recognizing Symptoms
• Severe Hypothermia – continued
• Dilated pupils• Exposed skin blue and/or puffy• Similar symptoms to clinical definition of
death
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Recognizing Symptoms
• Frostbite / Frostnip• Top layers of skin tissue freeze• Skin appearance: white, waxy• Top layer of skin feels hard & rubbery• Deep tissue is still soft• Numbness
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Recognizing Symptoms
• Superficial Frostbite• Skin appearance: white• Wooden feeling throughout affected area• All layers of skin affected• Numbness, sensation may be absent
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Recognizing Symptoms
• Deep Frostbite• Skin appears white• Affected areas feels ‘wooden’ to touch• Includes all layers of skin• May include freezing of muscle or bone
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First Aid
• General Procedures• Frostbite• Managing & Re-warming Injuries• Accidental Exposure
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First Aid
• General Procedures• Handle victim gently• Remove from cold and assess• Give hot fluids only if victim is conscious• Do not attempt to exercise victim• Prevent further heat loss
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First Aid
• Frostbite• Rewarm the area gently• Do not rub the area• If area is large, use immersion method• Transport to hospital if necessary
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First Aid
• Management and Re-Warming• Minimize exertion• Remove wet clothing• Get the victim into warm, dry clothes• Wrap victim in warm blankets
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First Aid
• Management and Re-Warming - continued• Cover victim’s head• Place something warm and dry under the
victim • Move the victim to a warm environment
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First Aid
• Management and Re-Warming - continued• Do not make the victim exercise• Do not suppress shivering• Do not massage extremities or trunk• Do not place in warm bath or shower
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First Aid
• Accidental Exposure• Unplanned event• Clothing and equipment• Treat appropriately• Assessed by OFAA or physician
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Survival Kit
• A change of clothing• Emergency supplies• Light weight emergency rain poncho• Spare gloves, footwear, head covering
and face mask
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Survival Kit
• Protective eye wear• Sleeping bag stored in plastic vapor-
barrier wrapper• Means of communication i.e. cell phone,
2-way radio
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Summary
• WorkSafeBC OHS Regulation• Risk identification• Risk assessment• Risk controls• Symptoms• First aid
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Questions?