HAZARD & RISK

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How would you define the terms hazard and risk?. A . hazard. is a source of danger which can be defined as “a condition or situation that exists in the work environment that could result in physical harm, injury and/ or damage”.. ID: 559779 Download Presentation

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HAZARD & RISK




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Slide1

HAZARD & RISK

Slide2

How would you define the terms hazard and risk?

A

hazard

is a source of danger which can be defined as “a condition or situation that exists in the work environment that could result in physical harm, injury and/ or damage”.

Risk

relates to exposure to the danger and is defined as “the probability of any injury or loss occurring from the hazard”.

Slide3

TYPES OF HAZARDS

Slide4

Can you give me some examples of a visible hazard?

Untidy

Working area

Missing machine guards

Broken or damaged ladders

Slippery surface.

Slide5

Can you give me some examples of a hidden hazard?

Toxic/asphyxiating gases

Vapors inside a confined space

Emission from a radioactive source

Slide6

Can you give some examples of a developing hazard?”

Building and structural damage due to vibration or moisture

Corrosion and weathering of metal components

Exposure to constant noise which is above the recommended levels

Abnormal wear and tear on critical parts of machinery, plant and equipment

Deterioration from ultra-violet radiation or chemical reaction

Slide7

Working at Heights

Slide8

Operatives not wearing safety helmets

No edge protection to roof nothing to stop materials falling offRoof ladder not long enoughAccess ladder tied to gutterLadder leaning on gutterAccess ladder too shortManual handlingUnprotected skylightOperative kneeling on fragile roof materialsOperative not wearing sensible clothingLoose tools in bag liable to fall out onto persons belowCarrying tools up ladder. Only one hand available to steady operative on the ladderNo safe access onto roof

Working at Heights

Slide9

Ground Excavations

Slide10

Ground Excavations

No ladder or safe access

Operatives not wearing safety helmetsTimbering inadequate to safety support the sides of the excavationCable crossing excavation both unprotected and unsupportedEdges of excavation unsafe and breaking awaySome wedges used to tighten up timbering missingNo securing pins in screw jackOperatives not wearing correct safety footwear Operative climbing on screw jackBoard incorrectly toed inSpoil heap in dangerous positionSoil slipping between trench supportsUnwedged strut across excavationCan of fuel incorrectly stored

Slide11

Lifting Operations

Slide12

No safety clip on crane hook

Shackle between crane hook and sling ringKnot in right-hand slingAngle between legs of sling too wideInsecure slinging method, chain too near end of load. Is load secure?Spare sling legs not hooked backLoad off levelWhat is SWL of sling?Signaller not wearing safety helmetCorrect hand signals not being usedAdjacent excavation not guardedOutrigger of crane too near to edge of trench on unstable groundTag rope not being usedDriver cannot see signalerNails in timber sticking upSpoil heap causing possible trip hazardSpoil heap sited too close to edge of excavation

Lifting Operations

Slide13

CATEGORIES OF HAZARDS

Slide14

Does anyone know the 6 general categories of hazards?

Physical (noise, vibration, temperature)

Chemical /Substances

(exposure to cyanide, acids, caustic soda, lead)

Ergonomic ( work area layout, equipment design, instrument layout)

Radiation (ultraviolet exposure from the sun or welding, infra-red from drying or heating processes)

Biological (viruses, bacteria, parasites)

Psychological (work load, shift arrangement, workplace violence)

Slide15

ASSESSING THE RISK

Slide16

“Does anyone remember the definition of risk?”

RISK

relates to exposure to a danger and is defined as “the probability of any injury or loss occurring from the hazard”

Slide17

What would be an example in each category?

Some

Consequences of

high risk

examples would be:

Loss of life

Permanent disability

Loss of body part

Extensive loss of structure, equipment or material

Slide18

“What would be an example in each category?” cont..

Some

Consequences of

medium risk

examples would be:

Serious injury or illness that results in a temporary disability

Property damage that is disruptive but less severe

than

a high risk hazard

Slide19

“What would be an example in each category?” cont..

Some

Consequences of

Low

risk

examples would be:

Minor, on-disabling

injury or illness

Non-disruptive property damage

Slide20

DEALING WITH HAZARDS

Slide21

EliminationReplacementIsolation Control (work permits )Personal Protective EquipmentDisciplines (Procedures, work instruction )

Can

anyone suggest what these are

?

Slide22

How can we, as individuals, help to eliminate hazards and protect ourselves and others?

Clean up after the job

Store and stack items correctly

Post hazard warning signs

Barricade the work area if a short term hazard exists

eg

welding /excavation

Operate equipment correctly

Follow the specified safe work procedures

Not walk away from a hazard – fix or report it

Slide23

SUMMARY

During the talk we have discussed how to:Identify different types of hazardsCategorize hazardsAssess the risk associated with hazardsEliminate hazard

Slide24

How do I develop a Task Hazard analysis for a critical job

Divide the task into sequences of basic steps.

Hazard Identification – Identify all potential hazards in each basic step .

Slide25

Consequences Categories 5MajorCausing death to one or more people. Loss or damage is such that it could cause serious business disruption (e.g. major fire, explosion or structural damage). Loss/ damage in excess of a financial value4SeverCausing permanent disability. (e.g. loss of limb, sight or hearing). Loss/ damage in excess of a financial value.3Significant Causing temporary disability. (e.g. fractures). Loss/ damage in excess of a financial value.2MinorCausing significant injuries. (e.g. sprain, bruises, and lacerations). Loss/ damage in excess of a financial value e.g. damage to fixtures and fittings.1SlightCausing minor injuries. (e.g. cuts, scratches). No lost time likely other than for first aid treatment. Loss/ damage in excess of a financial value e.g. superficial damage to interior decorations.

Estimate the consequence or severity of the event

How do I develop a Task Hazard analysis for a critical job

Slide26

Likelihood Categories 5CertainAbsence of any management controls. If conditions remains unchanged there is almost 100% certainty that an accident will happen. (e.g. broken rung on a ladder, live exposed electrical conductor, and untrained personnel).4ProbableSerious failures in management controls. The effect of human behavior or other factors could cause an accident but is unlikely without this additional factor (e.g. ladder not secured properly, oil spilled on floor, poor trained personnel).3PossibleInsufficient or substandard controls in place. Loss is unlikely during normal operation, however it may occur in emergencies or non routine conditions (e.g. keys left in forklift trucks; obstructed gangways; refresher training required).2likelyThe situation is generally well managed, however occasional lapses could occur. This also applies to situations where people are required to behave safely in order to protect themselves but are well trained.1ImprobableLoss, accident or illness could only occur under exceptional conditions. The situation is well managed and all reasonable precautions have been taken. Ideally, this should be the normal state of the workplace.

Determine the Likelihood or probability of event occurring

Slide27

How do I develop a Task Hazard analysis for a critical job

Evaluate the Risk- Likelihood X Severity

Certain

5

10

15

20

25

Probable

4

8

12

16

20

Possible

3

6

9

12

15

Improbable

2

4

6

8

10

Negligible

1

2

3

4

5

LIKELIHOOD

 

 

SEVERITY

Slight

Minor

Significant

Severe

Major

Slide28

How do I develop a Task Hazard analysis for a critical job

Risk Management – by setting control measures.

Re

evaluate the risk after control measures.

Slide29

ANY QUESTIONS

THANKS


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