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Asbestos Awareness. Developed by: State Safety and Industrial Hygiene Unit Department of Employee Relations September 2000. Asbestos Awareness. Purpose of training:. Provide all employees with basic information about asbestos and its hazards,

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asbestos awareness

Asbestos Awareness

Developed by:

State Safety and Industrial Hygiene Unit

Department of Employee Relations

September 2000

asbestos awareness2
Asbestos Awareness

Purpose of training:

  • Provide all employees with basic information about asbestos and its hazards,
  • Identify typical asbestos-containing materials within employee work areas,
  • This training does not qualify employees to work with asbestos-containing materials
asbestos awareness3
Asbestos Awareness

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%)




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Asbestos Awareness

Where does asbestos come from???

  • Mined from the ground
  • Contaminant with other minerals (vermiculite)
  • physical properties ideal for building
  • materials

Why do we use asbestos???

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Asbestos Awareness
  • What makes asbestos unique?
  • Abundant
  • Cheap
  • Fibers cleave into smaller fibers
  • What makes asbestos dangerous?
  • Extremely small fibers are very aerodynamic
  • (Fibers can remain airborne for extended periods of time and inhaled into the deep lung)
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Asbestos Awareness
  • Friable vs. Nonfriable - what’s more hazardous?
  • Friable - easily crumbled to dust using hand pressure
    • Spray fireproofing
    • Pipe insulation
  • Nonfriable - not easily crumbled by hand but can be crumbled by mechanical means
    • Floor tile
    • Roofing products
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Asbestos Awareness
  • Physical properties
  • Thermal resistance
  • Forms fibers with high tensile strength
  • Chemically inert
  • Absorbs sound
  • Electrical insulator
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Asbestos Awareness
  • History of uses:
  • Used in classical times by greeks and romans
  • Modern use began in 1880’s
  • Extensively used by US during WWII
  • Used in buildings extensively 1940’s-1970’s
  • Limited asbestos products still available today
  • asbestos use extensive in developing
  • countries
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Asbestos Awareness
  • How do we know if something is asbestos-containing?
  • Requires laboratory analysis with microscope
  • Certain products routinely contain asbestos
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Asbestos Awareness
  • 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

Floor tile and adhesive

Linoleum backing

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Asbestos Awareness

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

Asbestosis fatalities

Spray-on use ends

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Asbestos Awareness

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
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Asbestos Awareness

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
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Asbestos Awareness

Asbestos is extensively regulated!

  • Regulated by:
    • State and federal OSHA
    • Environmental Protection Agency (EPA)
    • Minnesota Pollution Control Agency (MPCA)
    • Minnesota Department of Health (MDH)
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Asbestos Awareness

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
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Asbestos Awareness

EPA and MPCA 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
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Asbestos Awareness

MDH regulations

  • Requires building survey prior to construction work
  • Requires building owners to maintain asbestos- containing materials in good condition
  • Requires certification of people working with asbestos
  • Identifies notification requirements
  • Establishes specific removal procedures
  • Establishes clearance criteria for removal projects
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Asbestos Awareness

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 or asbestos coordinator
  • Verify that building materials you will be working with are not asbestos-containing
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Asbestos Awareness

Asbestos-containing materials in our facility: