pine tree isd asbestos awareness training tree isd... · the children of asbestos workers whose...
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Pine Tree ISDAsbestos Awareness Training
•Widely used, mineral basedmaterial
•Resistant to heat & corrosivechemicals
•Fibers may range from coarseto silky
WHAT IS ASBESTOS?
When is Asbestos Dangerous?
When it becomes airborne.Fibers are so light it hang in the air for days.If you step in asbestos you will push it backinto the air.It can go through air ducts, under doors, downhalls and stairs.
Air Sampling
Air pumps pull the air through a filter.The fibers collect on the filter.The fibers are counted with the
use of a microscope.Asbestos is measured in fibers
per cubic centimeter (f/cc) of air.
HumanHair
FiberglassFiber
AsbestosFiber
Asbestos Fibers are Hollow.
A Single Asbestos Fiber
* Suspended ceiling tiles* Thickening agents in paints
* Pipe insulation* Fireproof drapes and curtains* Vinyl flooring and mastic (glue)* Friction products (brake &clutch facings)
* Reinforcing materials (cement pipe &sheet materials)
* Primary insulation and lagging materialfor high temperature machinery,boilers, and piping
Areas Where Asbestos Can Be Found
Asbestos pipe and boiler insulation does notpresent a hazard unless the protective canvascovering is cut or damaged in such a way thatthe asbestos underneath is actually exposed tothe air.
Contains Asbestos Fibers
Avoid Creating Dust
Cancer & Lung Disease Hazard
Vinyl Floor Tiles Acoustical Ceiling Tile
Pipe Insulation Asbestos Board
Why is it used?
Good insulator for heat, sound, fire, etc.Plentiful (naturally occurring, easy to mine
and mill.Stronger than steel.
•Friable
•Non-friable
The Two States of AsbestosMaterials
Friable
Able to crumble into powder with handpressure when dry.Dangerous when airborne.Examples:
Boiler insulationSpray-on fireproofingPopcorn ceiling (Spray-on)
Non-Friable
May become Friable or airborne throughdeterioration or processes that disturb.Examples:
Vinyl Floor TileCeiling Tile
There is no way to visually identifyasbestos. Many materials thatcontain asbestos look justthe same as materials that don't. The only way toconfirm that a material is asbestos is to takesamples and analyze the material in a laboratory.Therefore, it is best to treat anything that lookslike it may contain asbestos as if it does until it isanalyzed and proven to not contain any asbestos.
Can asbestos beidentified visually?
Chrysotile
Amosite
Crocidolite
Three Types Found in Buildings
Unmilled mineral asbestos (chrysotile).
Chrysotile
Respirators
Protection Factor (PF)Maximum Use Levels (MUL)Permissible Exposure Limit (PEL)
EXPOSURE LIMITS
OSHA PEL = .1f/cc for 8 hr time weighted avgAverage adult breathes in 10 M3 of air/shiftPEL = 1 million fibers per shift.
Working Safely with ACM’s If you have reason to suspect that something is asbestos,
either because it is labeled as such, or because it somethingthat is likely to contain asbestos (9" floor tile, for example)DO NOT DISTURB IT. Never:
Drill Hammer Cut Saw Break Damage Move Disturb
Control Methods
Limited activity when in contact with ACMsEncapsulation.Enclosure.Repair.Removal.Operations and Maintenance.
Building Systems
StructuralMechanicalElectricalArchitectural FinishesOther
HVAC SYSTEM
Block or board insulationBlanket or batt insulation.Gasket materialRope fillerValve packingVibration-dampening cloth
Plumbing System
Pipe Insulating MaterialsTransite water supply lines.
Electrical System
Transite ducts for electrical cable runsPartitions in electrical panelsAsbestos cloth to bind bare wiresInsulation on stage lightingMill board templates behind knock-out panelsBraided wire insulation on incandescent
lighting.Braided wire insulation in older buildings.
Exposure to Asbestos
DiseasesAsbestosisLung CancerMesotheliomaDigestive System Cancer
ASBESTOSISA progressively restrictive fibrosis ofthe lung and is recognized as adisabling and fataloccupational disease.
MESOTHELIOMAA rare malignant tumor of the lungmembrane which linesthe chest andabdominal cavity.
Age - cases of mesothelioma have occurred inthe children of asbestos workers whose onlyexposures were from the dust brought homeon the clothing of family members whoworked with asbestos. The younger people arewhen they inhale asbestos, the more likelythey are to develop mesothelioma. This iswhy enormous efforts are being made toprevent school children from being exposed.
Mesothelioma
Digestive System Cancer
Change in bowel patternsBlood in BMFeeling tiredWeight loss
BRONCHIAL LUNG CANCER
Malignant tumor of the bronchial tubes,this disease is more common than theother three.
Other Cancers
Evidence suggests that cancers in theesophagus, larynx, oral cavity, stomach,colon and kidney may be caused byingesting asbestos. For more informationon asbestos-related cancers, contact yourlocal chapter of the American CancerSociety.
LATENCY PERIOD(How long it takes to get sick)
10 - 40 years after initial exposure.
How Your Lungs WorkDefense Mechanisms
Exhaling contaminants back outNose hairMucousCilia
Health Hazards of Asbestosand Tobacco
Smoking sedates the cilia, disabling one ofyour key defense mechanisms.A smoker who does not work with asbestos is
about 22 times more likely to get cancer.Asbestos workers who
smoke are about 80 timesmore likely to get lungcancer.
Hazard CommunicationWho should you contact when you recognize
a damaged condition?What do you tell them when you call?
a) nature of damageb) amount of damagec) location of damaged) description of the scenee) occupancy issues
EPAAHERA - schoolsASHARA - public & commercial buildingsNESHAP - air quality districts
NIOSH - equipment approval
OSHA - worker protections
Agencies
Asbestos Regulating Agencies
Occupational Safety & Health AdministrationTexas Department of Public HealthEnvironmental Protection AgencyDepartment of Toxic Substance ControlContractor’s State License Board
REMEMBER!
Don’t disturb any substance or material thought to contain asbestos.Notify your supervisor if you suspect an ACM
has been compromised.Don’t allow high speed buffers to be used on
vinyl tile thought to contain asbestos.Don’t allow walls to be disturbed without first
notifying the Maintenance Department.