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Asbestos Awareness

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Asbestos Awareness Developed by: State Safety and Industrial Hygiene Unit Department of Employee Relations September 2000 Asbestos Awareness Provide all employees ... – PowerPoint PPT presentation

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Title: Asbestos Awareness


1
Asbestos Awareness
  • Developed by
  • State Safety and Industrial Hygiene Unit
  • Department of Employee Relations
  • September 2000

2
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

3
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)
  • Actinolite
  • Anthophyllite
  • Tremolite

4
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???
5
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)

6
Asbestos Awareness
  • Friable vs. Nonfriable - whats 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

7
Asbestos Awareness
  • Physical properties
  • Thermal resistance
  • Forms fibers with high tensile strength
  • Chemically inert
  • Absorbs sound
  • Electrical insulator

8
Asbestos Awareness
  • History of uses
  • Used in classical times by greeks and romans
  • Modern use began in 1880s
  • Extensively used by US during WWII
  • Used in buildings extensively 1940s-1970s
  • Limited asbestos products still available today
  • asbestos use extensive in developing
  • countries

9
Asbestos Awareness
  • How do we know if something is asbestos-containing
    ?
  • Requires laboratory analysis with microscope
  • Certain products routinely contain asbestos

10
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
11
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

12
Asbestosis fatalities
Spray-on use ends
13
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

14
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

15
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)

16
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

17
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

18
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

19
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

20
Asbestos Awareness
Asbestos-containing materials in our facility
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