WHMIS Your right to know!! Unit 2: WHMIS and Your Health.
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Transcript of WHMIS Your right to know!! Unit 2: WHMIS and Your Health.
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WHMISYour right to know!!
Unit 2: WHMIS and Your Health
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Workplace Hazardous Materials Information System
“An Information System designed to advise you on the Hazardous Materials you may encounter in your Workplace”
WHMIS and your Health
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Workplace Hazards
What and Why?
Knowledge of Health Risks and possible
Health Related Outcomesof Exposure to Hazardous Material
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Occupational (Workplace) Health
SOLID
LIQUID
GAS
Properties of Hazardous Materials
Fume
Dust
Smoke
Mist
Vapour
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Tiny particles of solids suspended in the air
Tiny particles of liquid suspended in the air
Gaseous material that is normally a liquid at room temperature
SOLID
LIQUID
GAS
Mist
Vapour
Definitions of Hazardous MaterialsFume
Dust
Smoke
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Routes of Entry...
Inhalation :Most common route of entry (i.e. Organic vapours causing central nervous system damage)
Ingestion : Swallowed (i.e. lead dust)
Injection: Accidental cut or force (compressed air…)(i.e. Blood/ Body Fluids - HIV, Hepatitis C)
Absorption:Through skin or open wounds(i.e. Formaldehyde- contact dermatitis
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Target organs along the routes of exit...
Complex chemical reactions in body organs canseverely damage these organs and their functions!
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Target organs along the routes of exit...
Liver: Complex chemical reactions in the liver break down unwanted and often harmful substances
Kidneys: Kidneys act as a filter for blood, separating and removing unwanted and harmful substances from the blood
Bladder: harmful and unwanted substances filtered out by the kidneys flow into the bladder for excretion from the body. Harmful substances may damage the bladder as well as the kidneys.
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Toxicity:The ability of a substance to
produce an undesired, harmful effect to the body
Hazard:A potential danger
Glossary of Important Terms
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The Body and Health Affects…..
Acute Effect: Chronic Effect: Latency Period:
Immediate harmful effectHarmful effect happening over a longer period of timeThe period of time between exposure and onset of harmful effect
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Definitions...Carcinogen: A substance or physical agent that can cause cancer in humans.
e.g. - Asbestos
Mutagen: A substance or physical agent that can cause changes in one or more heredity features by modifying genes.
e.g. - Ionizing radiation
Teratogen: A substance capable of causing changes to the developing fetus.
e.g. Thalidomide
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Controlling Hazards...The preferred method of control is:
At the source• elimination• substitution• isolation
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Controlling Hazards...
Along the path• ventilation• barriers• housekeeping
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Controlling Hazards...The least desired method of control is:
at the Worker•••
Personal Protective Equipment Work PracticesTraining
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Controlling Hazards....
At the source ...
Along the path …
At the worker… * Least Desirable Option
… substitute
… personal protection
engineering control …
…..ventilation
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Controlling Hazards...Examples of some Personal Protective Equipment symbols