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

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Presentation on theme: "Asbestos Awareness Developed by: State Safety and Industrial Hygiene Unit Department of Employee Relations September 2000."— Presentation transcript:

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

2 Asbestos Awareness 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 Purpose of training:

3 Asbestos Awareness 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 What is Asbestos????

4 Asbestos Awareness Mined from the ground Contaminant with other minerals (vermiculite) Where does asbestos come from??? Why do we use asbestos??? physical properties ideal for building materials

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 - 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

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 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

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 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 Health hazards of asbestos exposure

12 Asbestosis fatalities Spray-on use ends

13 Asbestos Awareness Mesothelioma - cancer of the chest cavity –20-40 year latency period –Not necessarily associated with high dose exposure –Rare –Almost always fatal Health hazards of asbestos exposure

14 Asbestos Awareness 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 Health hazards of asbestos exposure

15 Asbestos Awareness Regulated by: State and federal OSHA Environmental Protection Agency (EPA) Minnesota Pollution Control Agency (MPCA) Minnesota Department of Health (MDH) Asbestos is extensively regulated!

16 Asbestos Awareness 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 OSHA Regulations

17 Asbestos Awareness 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 EPA and MPCA regulations

18 Asbestos Awareness 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 MDH regulations

19 Asbestos Awareness 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 Your responsibilities:

20 Asbestos Awareness Asbestos-containing materials in our facility:


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