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DHEC ◦ Disturbance of ACBM during renovations and

demolitions◦ Focus on environmental impact

OSHA◦ Disturbance of ACM during renovations,

demolition, maintenance◦ Work practices, training, exposure limits◦ Focus on worker protection

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Separate into smaller and smaller fiber bundles when disturbed or handled – up to 700 times smaller than human hair

Resistant to heat, bacteria and chemicals

Great tensile strength and stiffness

Excellent electrical and thermal insulator

Noise insulator

Resistant to effects of friction and wear

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1973 – banned in thermal, surfacing, fireproofing materials

Commonly found ino Floor tiles (9” x 9” and 12” x 12”) – most commono Ceiling tileso TSI (water, steam and chilled water lines)o Fireproofing (Jones PSC, Law Center, Capstone)o Transite panelso Tank insulationo Acoustical spray (popcorn) ceilingo Roofing felts and shingleso High temperature gaskets and valve packing's

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Fireproofing material – sprayed on steel beams, columns and decking

Added to concrete or other materials to enhance strength (i.e. siding, roofing shingles, wallboard, pipes, asphalt, vinyl)

Acoustical plaster, textured ceilings Insulation of pipes/equipment

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ACM – asbestos containing materials ACBM – asbestos containing building

materials Friable – can be reduced to powder by

hand pressure when dry EPA and OSHA define ACM as materials that

contain more than 1% asbestos, by weight.

Asbestos content can only be determined through analysis of bulk samples!

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Majority of people who have died from asbestos exposure were asbestos workers, exposed to high concentrations each day with little or no protection.

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Asbestosis

Lung Cancer

Pleural Mesothelioma

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• Scarring of lung tissue • Macrophages• Clear dose-response relationship• Shortness of breath• Latency period of 15 – 30 years

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Entrances to mechanical rooms

Entrances to regulated abatement areas

Entrances to crawl spaces

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“Occupational Exposure” – exposure at or above 0.1 fibers per cubic centimeter (f/cc)

Maintenance, repair, renovation, demolitions that disturb ACM

Fiber release fromo Fallout (old/deteriorated ACM)o Contact (striking, cutting, drilling, air erosion)o Reentrainment (sweeping, dusting, unfiltered

vacuuming of settled dust)

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Damage and deteriorationo Avoid touching or disturbing ACM on ceilings,

pipes, boilerso Do not drill, sand or scrape ACMo Do not attempt to clean friable ACMo Cleanup only by HEPA vac and wet methodso Do not go above ceiling grid in PSC, Law Center,

or Capstone

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Applied in a friable state (fireproofing, acoustical insulation)

Physical disturbance◦ Contact with asbestos ceiling◦ Damaged ceiling tile when removing◦ Air erosion◦ Delamination

Water leaks from ceiling causes ceiling asbestos coating to pull away (delaminate) from base material.

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Floor careo Do not sand or scrape asbestos flooringo Strip only with wet methods at speeds < 300 rpm.o Do not dust, dry sweep or vacuum dirt/debris

where there is damaged ACMo Jones PSC – wet wiping and HEPA vacs only for

routine cleaning

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Be familiar with health hazards of asbestos Be aware that some areas can contain ACM Report evidence of disturbance or damage

to Work Management @ 7-4217. Report improper actions which could

damage ACM

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Due to recent soil sampling, all crawl spaces and mechanical rooms with dirt floors are being treated as contaminated

Entry will be restricted to asbestos certified employees until poly is applied in the space

Asbestos signs will be posted – DO NOT ENTER if you see this sign

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DO NOT ENTER SOIL IS CONTAMINATED SOIL IS CONTAMINATED

WITH ASBESTOS WITH ASBESTOS CONTAINING MATERIALCONTAINING MATERIALIF ACCESS TO THIS SPACE IS IF ACCESS TO THIS SPACE IS

REQUIRED, CALL FACILITY REQUIRED, CALL FACILITY SERVICES @ 7-4217SERVICES @ 7-4217