Lecture Industrial safety and environmental hygiene - Chapter 1: Common issues of labor safety present the content terminology accident, definition, hazard, risk, unsafe act, unsafe condition,...
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Nội dung Text: Lecture Industrial safety and environmental hygiene - Chapter 1: Common issues of labor safety
- 3/3/2016
Vietnam National University – HCMC
Ho Chi Minh City University of Technology
Faculty of Resource & Environment
INDUSTRIAL SAFETY AND
ENVIRONEMENTAL HYGIENE
Lecturer: Dr. TRAN BICH CHAU
Email: tbchau@hcmus.edu.vn
02/2016
Vietnam National University – HCMC
Ho Chi Minh City University of Technology
Faculty of Resource & Environment
Chapter 1:
Common issues of labor safety
Lecturer: Dr. TRAN BICH CHAU
Email: tbchau@hcmus.edu.vn
02/2016
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Terminology
WHAT IS AN ACCIDENT ???
“An accident is an
unplanned & uncontrolled
event which causes or is
likely to cause an injury”.
New view: “An accident is any unplanned
event that results in injury or ill health of
people or damage or loss to property, plant
materials or the environment or loss of a
business opportunity”
Accident 1
• A 37 years old
man had both 2
legs clamp in the
soil grinder.
• With the help
form doctors, two-
thirds of the
victim’s body was
taken out of the
machine, but 1 leg
was still stuck in
the machine.
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Accident 2
This worker was rolled up by a bulldozer while working
Terminology
WHAT IS A NEAR MISS ???
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Terminology
Definition
• A “near miss” is an unplanned event that did
not result in injury, illness or damage - but
had the potential to do so.
• Sometimes called a “near hit” or “close call”
– signals a system weakness that if not
corrected could lead to significant
consequences in the future.
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Terminology
Watch examples and do
discuss
1. What are the misktake of
the workers in this video
clip?
2. What would be the right
things to do in these case?
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Terminology
Watch examples and do
discuss
1. What are the mistake of
the workers in this video
clip?
2. What would be the right
things to do in these case?
Terminology
HAZARD
• Anything or condition with the potential
to cause harm
• A hazard takes many forms: chemical,
electricity ..
Activity: Can you name some hazards
in your daily life?
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Terminology
HAZARD
Source Example of Hazard Example of harm
Object Knife Cut
Substance Benzene Leukemia
Material Asbestos Mesothelioma
Source of energy Electricity Shock, electrocution
Condition Wet floor Slips, falls
Process Welding Metal fume fever
Practice/Task Hard rock mining Silicosis
Could you see this hazard ???
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Hazards include any force that is strong
enough to cause injury in an accident
Terminology
Exercise 1: Spot the trip hazards
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Solutions:
Terminology
HAZARD
• Question: Will exposure to hazards in the
workplace always cause injury, illness or
other adverse health effects?
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Terminology
RISK ???
Risk: chance or probability that a person will be
harmed or experience an adverse health effect if
exposed to a hazard.
Example: the risk of developing cancer from
smoking cigarette
Terminology
RISK ???
Influence factors of risk include:
• how much a person is exposed to a hazardous
thing or condition,
• how the person is exposed (e.g., breathing in a
vapour, skin contact), and
• how severe are the effects under the conditions
of exposure
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Terminology
HAZARD AND RISK ???
• Hazard: the possible consequences (e.g.,
lung cancer, emphysema and heart disease
from cigarette smoking).
• A Risk: a probability or likelihood of
developing a disease or getting injured
Exercise 2: Hazard recognition
What’s wrong
with this picture?
Do not overextend or
twist body
Use proper lifting
techniques
Ask for assistance in
lifting heavy items
Use proper posture
while working
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Incident Ratio Model – Heinrich’s
Theory
Serious Injury or Death
Most Accident 1
Investigations
Conducted
29
Biggest
Minor Injury
percentage
of injury
Few Investigations causing
Conducted potential!
300
Near Miss
3,000
Unsafe Acts, Behaviors or Conditions
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Terminology
What is PPE ???
• Equipment that creates a barrier
against workplace hazards
• Examples include hard hats,
goggles, gloves, and hearing
protection
• A temporary measure
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Terminology
Examples of PPE
Welding helmet
Safety harness Full face shield
Anti vibration gloves Cut-resistant Gloves Ear plug
Terminology
WHAT IS UNSAFE ACT ???
Unsafe act – performance of a task or other activity that is conducted
in a manner that may threaten the health and/or safety of workers.
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Terminology
UNSAFE ACT
Terminology
UNSAFE ACT
What is
wrong ???
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Terminology
UNSAFE CONDITION ???
ACT -- Condition
Terminology
UNSAFE CONDITION ???
Examples
- Inadaquate guards or barrier
- Congestion for restricted action
- Poor house keeping
- Hazardous environment condition
- Noise exposures
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Electricity and Water is a Dangerous
Combination
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Terminology
UNSAFE ACT or UNSAFE CONDITION ???
Does the picture show that
the man is performing an
unsafe act or that the man is
working in unsafe condition?
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Exercise 3: Hazard and unsafe act recognition
What’s wrong with
this picture?
Exercise 3: Hazard and unsafe act recognition
What’s wrong with
this picture?
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Where have we been so far?
- Accidnent
- Near miss
- Hazard
- Risk
- Unsafe Act
- Unsafe condition
- PPE
What Next?:
Labor safety
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