Occupational Hygeine Flashcards
A potential source of harm to life or property is the definition of:
A Hazard
Hazards can be categorised as:
Acute
Chronic
What is an Acut Hazard?
Immediate in their effect
Safety type problems with potential to cause immediate physical injury
What is a Chronic Hazard?
Take a long time to take effect
Difficult to identify
Eg. Occupational Cancer, poorly designed office
Pysical states of hazardous substances
Solids
Liquids
Gases
Routes of entry for hazardous substances?
Inhalation
Absorption
Injection
Radiation
Ingestion
How can the adverse health effects of toxins be categorised?
Local
Systemic
_______ effects are those signs that are localised in an area & usually involve the entry sit of the toxin into the body.
Only the site is effected - rest of the body shows no ill effects.
Local
_______ effects are experienced by the rest of the body, independent of the site of entry.
The effects are experienced by the bodies systems or organs.
The body as a whole is adversely affected as a result of entry by a toxin.
Systemic
What is TIME WEIGHTED AVERAGE?
TWA is the average concentration which should not be exceeded over an eight hour working day for a five day working week.
What are SHORT TERM EXPOSURE LIMITS?
STEL is the maximum average concentration which should not be exceeded over 15 minutes at any one time or for more that 4 periods in a week.
Must break for more than 60min between exposures.
What are EXCURSION LIMITS?
The duration of time a worker can spend in the presence of a known toxic materail under specific conditions.
What are Ceiling Values?
Definite limits which chemical concentraions should not be permitted to exceed.
10 common types of environmental hazards
- Poor lighting
- Heat
- Cold
- Noise
- Vibration
- Confines Spaces
- Electricity
- Radiation
- Communicable diseases
- Stress
How might cummunicable diseases be transfered to a firefighter?
Inhalation
Ingestions
Direct Contact.
