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Asbestos Awareness

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Title: Asbestos Awareness


1
Asbestos Awareness
  • 2014

2
Asbestos Awareness
Purpose of training
  • Provide all employees with basic information
    about asbestos and its hazards and proper
    protection measures,
  • Identify typical asbestos-containing materials
    (ACMs) within employee work areas,
  • This training does not qualify employees to work
    with asbestos-containing materials

3
Asbestos
What is Asbestos?
  • Naturally occurring fibrous mineral
  • Six different forms of asbestos
  • Chrysotile - most common type in US (95)
  • Amosite - 2nd most common (2-3)
  • Crocidolite - 3rd most common (1-2)
  • Actinolite
  • Anthophyllite
  • Tremolite

4
Asbestos Source
  • Asbestos is a naturally occurring mineral.
  • It is mined from the ground
  • Canada, Russia, Africa, and formerly in the
    Unites States

5
Asbestos Awareness
  • What makes asbestos desirable?
  • Abundant
  • Cheap
  • What makes it unique?
  • Fibers breakdown into microscopic fibers rather
    than dust particles.

6
Asbestos Value
  • Why is asbestos so commonly used?
  • It is a good insulator
  • It holds up well to heat, - fireproof under
    normal fire situations
  • When added to other materials, it strengthens
    them
  • It doesnt rot and is impervious to most
    chemicals

7
Two Application Examples
  • Asbestos strengthens concrete-
  • Concrete water mains and concrete board in the
    form of 4 x 8 sheets and shingle siding, owe
    their strength to asbestos fibers.
  • Asbestos has excellent insulating properties-
  • Boilers and steam pipes were insulated with
    asbestos containing material.
  • These materials often contain almost 100
    asbestos with only enough binder material to keep
    it in place

8
Hazardous Characteristics
  • What makes asbestos dangerous?
  • Extremely small fibers are very aerodynamic.
  • Remains airborne for very long periods.
  • Asbestos is a fiber that can be continually
    broken donw and still remain a fiber while
    typical materials breakdown to particles.
  • Asbestos will divide into microscopic fibers that
    are 1200 times smaller than a human hair (see
    photo).
  • .

Human hair
Asbestos fibers
9
Historical Perspective
  • During the 1930s, it was found that it improved
    almost any material that it was added to. It was
    sold as, and truly was, the Miracle Fiber
  • As was discovered later, it is not a healthy
    thing to expose people to asbestos fiber.

10
Fire Scene Caution
  • The lack of awareness or knowledge of the health
    dangers caused an uncontrolled and unregulated
    use of asbestos.
  • IT COULD BE ANYWHERE!

11
Historical Perspective
  • Asbestos use continued long after there was an
    indication that it created health problems in
    exposed people, but finally in the mid 1970s the
    government begin to curtail the use of asbestos.

12
Friability
  • Friable vs. Non-friable
  • Friable - easily crumbled to powder using hand
    pressure (high likelihood of airborne exposure)
  • Spray fireproofing
  • Pipe insulation
  • Nonfriable - not easily crumbled by hand but can
    be crumbled by mechanical means (possibility of
    airborne exposure)
  • Floor tile
  • Roofing products
  • Siding materials

13
Non Friable Asbestos Warning
  • When non-friable asbestos containing material
    (ACM) is subjected to intense heat, weather or
    mechanical forces, such as those encountered
    during structural fires, demolition or
    renovation, it can be crumbled, pulverized, or
    reduced to powder, and thereby release asbestos
    fibers.

14
Asbestos Presence
  • How is asbestos presence determined?
  • Laboratory analysis with microscope
  • Puget Sound Clean Air Agency requires certified
    inspection of all demolition projects in King
    County.
  • Certified contractors are required for removal of
    asbestos prior to demolition.

15
Asbestos Containing Materials
Pipe Insulation
Siding Materials
Roll Roofing
Floor Tiles
16
Asbestos Containing Materials
Old Wire Insulation
Fire Door Core
Ceiling Tile
Roofing Mastic
17
Asbestos Containing Materials
Spray-on Ceilings
Ceiling/Wall Coverings
18
ACM Summary
  • Common asbestos-containing materials

Pipe, boiler and duct insulation Sprayed or
troweled plaster Spray fire proofing Cement pipes
and panels Mechanical gaskets and packing Ceiling
tiles Popcorn ceiling Floor tile and
adhesive Linoleum backing
19
Asbestos in the Fire Building
  • Almost any material subjected to intense heat
    will burn away - except for asbestos
  • To the firefighter working in a structure fire
    with ACMs present, this means that you are
    working in a friable asbestos atmosphere.

20
Asbestos in the Fire Building
  • The hazardous and toxic atmosphere created by the
    fire often dissipates relatively quickly.
  • The hazardous atmosphere created by the release
    of asbestos fiber does not.

21
Asbestos in the Fire Building
  • The fibers that have the greatest potential for
    respiratory damage cant be seen.
  • These fibers can remain airborne for hours and
    in the area indefinitely.
  • The SCBA worn by the firefighter will protect
    from this exposure.

22
Asbestos in the Fire Building
  • Most filter masks, dust masks, wont filter these
    small fibers.
  • The HEPA filter half-mask (magenta cartridge)
    may stop some of the asbestos.
  • Filter masks are not appropriate for asbestos
    exposure.

23
Asbestos in the Fire Building
  • Protect your respiratory system by wearing SCBA
    during the fire and during salvage and overhaul.

24
Post Fire Operations
  • Respiratory protection- SCBAs- must be used
    during the fire investigation period if the
    damaged area is suspected to have asbestos
    contamination.
  • Once you suspect that an area is contaminated, it
    is not easy to change that suspicion.
  • There is no acceptable reason to allow an
    unmasked person, Fire Investigator, Fire Marshal
    or Chief, into a suspected contaminated area.

25
Response to Asbestos Abatement Sites
  • A Fire Call to a building where asbestos is being
    removed adds a new dimension.
  • Exits can be compromised by the containment.
  • The negative air machines are drawing air towards
    the containment.
  • The containment area is contaminated with
    asbestos fiber.

26
Response to Asbestos Abatement Sites (Non-Fire)
  • An EMS call for a worker in containment must be
    handled as a HazMat call by the medics.
  • Entry into the containment requires full
    protective gear.
  • The victim and all medics and equipment must be
    decontaminated prior to loading and transport.

27
Health Issues
Health hazards of asbestos exposure
  • Asbestosis - fribrotic scaring of the lungs
  • 10-20 year latency period
  • Associated with high dose exposure
  • Smoking creates synergistic effect
  • Increased chance of other asbestos diseases
  • Symptoms of asbestosis include shortness of
    breath and a dry crackling sound in the lungs
    while inhaling

28
Health Issues
Health hazards of asbestos exposure
  • Mesothelioma - cancer of the chest cavity
  • 20-40 year latency period
  • Not necessarily associated with high dose
    exposure
  • Rare
  • Almost always fatal

29
Health Issues
Health hazards of asbestos exposure
  • Lung cancer
  • 20-30 year latency period
  • Many other causes of lung cancer
  • Most frequent form of asbestos disease today
  • Smoking synergistic effect (50-90 times)
  • Associated with high doses

30
Regulation
Asbestos is extensively regulated!
  • Regulated by
  • State and federal OSHA
  • Environmental Protection Agency (EPA)

31
Regulation
OSHA Regulations
  • Requires employee training (i.e. This training)
  • Exposure monitoring when working with asbestos
  • Establishes permissible exposure level for
    employees 0.01 fibers per cubic centimeter (cc)
    of air (1 cc is approximately a sugar cube)
  • Identifies work practices
  • Identifies personal protection requirements
  • Identifies work practice prohibitions

32
Regulation
EPA Regulations
  • Requires building survey prior to construction
    work
  • Removal of asbestos containing materials before
    renovation or demolition
  • Establishes notification requirements
  • Defines proper transport and disposal
    requirements
  • EPA regulates asbestos in schools

33
Fire Incident Decontamination
  • Gross decontamination of firefighters prior to
    removal of SCBA face piece after operating in
    suspected hazardous areas.
  • Proper decontamination and controls of suspected
    contaminated protective clothing.
  • Protects firefighters health and well being.

34
Personal Responsibility
Your responsibilities
  • Do not damage or disturb any asbestos-containing
    materials
  • Immediately report the presence of damaged
    asbestos-containing or suspect asbestos-containing
    material to your supervisor.

35
Increased KnowledgeIncreased Safety
36
Enjoy Retirement
All this so we can Enjoy a Long Retirement
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