IICRC HST Exam Study Guide Questions
and Correct Answers| Updated
Industrial Hygiene
Science and art devoted to the anticipation, recognition, evaluation, prevention,
and control of those environmental factors or stresses arising in or from the
workplace which may cause sickness,, impaired health and well being, or
significant discomfort among workers or among citizens of the community.
Occupational Health and Safety
Same definition as "industrial hygiene" ;
Science and art devoted to the anticipation, recognition, evaluation, prevention,
and control of those environmental factors or stresses arising in or from the
workplace which may cause sickness,, impaired health and well being, or
significant discomfort among workers or among citizens of the community.
Principles of health and safety hazard identification rely on these 3 basic criteria
Recognition - of a hazard or potential hazard
Assessment - and eval of the hazard
Controls - that are implemented to minimize hazard
,Hazard
Any source or situation with a potential for harm in terms of a human injury or ill
health, damage to property, damage to the workplace environment, or any
combination of these.
Risk
It is the chance or probability that a person will be harmed or experience an
adverse health effect if exposed to a hazard. May also apply to situations with
property or equipment loss.
What is the purpose of a hazard/risk assessment?
to identify hazards and risks in the workplace so that workers are made aware of
unsafe conditions at a worksite.
Occupational Illness
A health problem caused by exposure to health hazards in workplace
Occupational injury
Injury that results from a work-related accident or exposure involving a single
incident in the work environment.
Hazard-Contributing Factors:
People
Equipment
Materials
,Environment
Process
Kinds of Hazards:
Machine
Energy
Confined Space
Material Handling
Work practice/Ergonomic
Chemical/Biological
Aim of hazard/risk assessment process is to
remove a hazard or reduce the level of risk by adding precautions or control
measures as necessary.
Levels of Risk involved with Hazard
Very Low
Low Medium
Medium
High
Very High
, Hazard Level: Very Low
Considered acceptable
Hazard Level: Low
No controls required unless can be implemented at low cost
Hazard Level: Medium
Consideration should be whether the risks can be lowered, where applicable, to a
tolerable level and preferably to an acceptable level, but the cost of additional risk
reduction measures should be taken into account
Hazard Level: High
Substantial efforts should be made to reduce the risk. Risk reduction measures
should be implemented urgently within a defined period of time and it might be
necessary to consider suspending or restricting the activity, or to apply interim risk
control measures, until this has been completed. Arrangements should be made
to ensure that controls are maintained, particularly if the risk levels are associated
with extremely harmful consequences
Hazard Level: Very High
These risks are considered unacceptable. Substantial improvements in risk control
measures are necessary so that the risk is reduced to a tolerable and acceptable
and Correct Answers| Updated
Industrial Hygiene
Science and art devoted to the anticipation, recognition, evaluation, prevention,
and control of those environmental factors or stresses arising in or from the
workplace which may cause sickness,, impaired health and well being, or
significant discomfort among workers or among citizens of the community.
Occupational Health and Safety
Same definition as "industrial hygiene" ;
Science and art devoted to the anticipation, recognition, evaluation, prevention,
and control of those environmental factors or stresses arising in or from the
workplace which may cause sickness,, impaired health and well being, or
significant discomfort among workers or among citizens of the community.
Principles of health and safety hazard identification rely on these 3 basic criteria
Recognition - of a hazard or potential hazard
Assessment - and eval of the hazard
Controls - that are implemented to minimize hazard
,Hazard
Any source or situation with a potential for harm in terms of a human injury or ill
health, damage to property, damage to the workplace environment, or any
combination of these.
Risk
It is the chance or probability that a person will be harmed or experience an
adverse health effect if exposed to a hazard. May also apply to situations with
property or equipment loss.
What is the purpose of a hazard/risk assessment?
to identify hazards and risks in the workplace so that workers are made aware of
unsafe conditions at a worksite.
Occupational Illness
A health problem caused by exposure to health hazards in workplace
Occupational injury
Injury that results from a work-related accident or exposure involving a single
incident in the work environment.
Hazard-Contributing Factors:
People
Equipment
Materials
,Environment
Process
Kinds of Hazards:
Machine
Energy
Confined Space
Material Handling
Work practice/Ergonomic
Chemical/Biological
Aim of hazard/risk assessment process is to
remove a hazard or reduce the level of risk by adding precautions or control
measures as necessary.
Levels of Risk involved with Hazard
Very Low
Low Medium
Medium
High
Very High
, Hazard Level: Very Low
Considered acceptable
Hazard Level: Low
No controls required unless can be implemented at low cost
Hazard Level: Medium
Consideration should be whether the risks can be lowered, where applicable, to a
tolerable level and preferably to an acceptable level, but the cost of additional risk
reduction measures should be taken into account
Hazard Level: High
Substantial efforts should be made to reduce the risk. Risk reduction measures
should be implemented urgently within a defined period of time and it might be
necessary to consider suspending or restricting the activity, or to apply interim risk
control measures, until this has been completed. Arrangements should be made
to ensure that controls are maintained, particularly if the risk levels are associated
with extremely harmful consequences
Hazard Level: Very High
These risks are considered unacceptable. Substantial improvements in risk control
measures are necessary so that the risk is reduced to a tolerable and acceptable
