Safety is the state of being safe the condition of
being protected against physical hazards. Unsafe
conditions threaten people’s health in all
environments—in trafﬁc, at home, on the job,
producing huge numbers of illnesses, injuries, and
deaths. In most cases, these health problems could
have been avoided if the victim or other people had
used reasonable safety precautions
occurs when a vehicle collides with another vehicle. A
number of factors contribute to the risk including
vehicle design,speed of operation, road design, road
environment, driver skill and driver behavior.
Worldwide, collisions lead to death and disability as
well as financial costs to both society and the
Government data reveal that
accidental injury is:
• The leading cause of death of
individuals under age 45.
• Responsible for over 30% of all
deaths of children 1 to 14 years
• The fifth most frequent cause of
death in American population
Prevention and Causes of road
Around 400 people a year are
killed in crashes in which
someone exceeds the speed
limit or drives too fast for the
• Disregarding of road signs
and warning signs.
Around 280 people die a year in
crashes in which someone was over
the legal drink drive limit.
Careless or Distracted Driving:
deaths a year
Another approach addresses the role of cell
phones in accidents: the risk of trafﬁc mishaps is
four times as likely during or shortly after the
driver uses a phone, even a hands-free phone.
Trafﬁc injuries and deaths can also be
prevented if drivers and passengers will use
protective equipment, such as seat belts in cars
and helmets when riding motorcycles or
Environmental hazard' is the state of events
which has the potential to threaten the
surrounding natural environment and
adversely affect people's health.
Today we know that excessive exposure to
the sun’ ultraviolet rays make the skin age
and can cause skin cancers.
Ultraviolet radiation is only one of many
environs- mental hazards people need to
Many harmful chemicals and gases exist in
households, work- sites, and general
Asbestos is a substance that was used in
buildings and equipment as a ﬁre
retardant. People who have regular contact
with it risk developing lung cancer.
Lead poisoning, which can damage children’s
nervous system and impair intelligence if they
ingest it, such as by mouthing objects painted
with lead-based paints, or drinking acidic
beverages from lead-glazed ceramics.
Radon, a radioactive odorless gas that can
cause lung cancer with long-term
exposure, enters dwellings from the
ground; ventilating a basement can reduce
which can occur with
one very high- level
exposure or long-term
causes cancer. It can
be released into the
many sources, such as
nuclear testing sites
and power plants,
hospitals, and military
facilities be done.