2. Hazard
Hazard is an agent,
condition or activity.
Potential to cause
harm that, if left
uncontrolled, may
adversely affect the
well-being or health
of exposed persons
For example, hazards
can include
substances such as a
toxic chemical,
energy forms such as
a high voltage power
supply, machines, or
the way work is
carried out
3. Hazards in
the
workplace
physical e.g..
noise, radiation,
light, vibration
chemical e.g.
poisons, dusts
biological e.g.
viruses, plants,
parasites
mechanical/elec
trical e.g. slips,
trips and falls,
tools, electrical
equipment
psychological
e.g. fatigue,
violence,
bullying.
Ergonomic e.g
workstation
design, lifting
procedures
4. Risk
• Risk is a combination of the likely severity and
probability that somebody will actually be harmed
by a specific hazard.
• The two factors (severity and probability) used to
estimate the risk.