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Dealing with Asbestos during the Remodeling Process.

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Presentation on theme: "Dealing with Asbestos during the Remodeling Process."— Presentation transcript:

1 Dealing with Asbestos during the Remodeling Process

2 Asbestos Mineral Natural occurring mineral Mined in open pits or underground Three largest asbestos producers are Canada, China and Brazil

3 What is Asbestos? Asbestos is the name applied to six naturally occurring minerals that are mined from the earth. The different types of asbestos are: Amosite Chrysotile Tremolite Actinolite Anthophyllite Crocidolite

4 What is Asbestos? Chrysotile (white) is the most common Amosite (brown / off-white), or Crocidolite (blue) as well.

5 Common Types of Asbestos Chrysotile Amosite Crocidolite

6 Chrysotile Asbestos

7 Amosite Asbestos

8 Crocidolite Asbestos

9 Tremolite Asbestos

10 Asbestos Properties Heat, cold and sound insulator Tensile strength Resistant to chemicals

11 Asbestos Properties Asbestos fibers are also virtually indestructible They are resistant to chemicals and heat, and they are very stable in the environment They do not evaporate into air or dissolve in water, and they are not broken down over time Asbestos is probably the best insulator known to man

12 Asbestos Products Adhesives and mastics Appliance components Brake linings Gaskets Joint Compound Ceiling tilesCement pipes Packing materialChalkboards Clutch facingsCooling towersDuctsElectrical Elevator components Filters Transite Fire blankets/curtains Fire doors Floor tileFlooringGalbestos InsulationCaulkingLab gloves, hoods, tables, sinks Lamp socket collarsPlasterPaints, Coatings StuccoRoofingSpackling Thermal paper/tapeWall coveringsWallboard/Sheetrock

13 Aerodynamic Properties Because asbestos fibers are so small, once released into the air, they may stay suspended there for hours or even days (i.e. 72 hours)

14 When is Asbestos Dangerous? The most common way for asbestos fibers to enter the body is through breathing.

15 When is Asbestos Dangerous? Asbestos containing material is not generally considered to be harmful unless it is releasing dust or fibers into the air where they can be inhaled or ingested Many of the fibers will become trapped in the mucous membranes of the nose and throat where they can then be removed, but some may pass deep into the lungs, or, if swallowed, into the digestive tract Once they are trapped in the body, the fibers can cause health problems

16 When is Asbestos Dangerous? Damage and deterioration will increase the friability of asbestos-containing materials. Water damage, continual vibration, aging, and physical impact such as drilling, grinding, buffing, cutting, sawing, or striking can break the materials down making fiber release more likely

17 Problems with Asbestos Breaks into fibers versus dust Aerodynamic Unable to detect visually or by smell

18 Health Effects Because it is so hard to destroy asbestos fibers, the body cannot break them down or remove them once they are lodged in lung or body tissues. They remain in place where they can cause disease There are three primary diseases associated with asbestos exposure: Asbestosis Lung Cancer Mesothelioma

19 Health Effects of Asbestos Healthy Lungs Asbestosis Mesothelioma

20 Defense Mechanisms Nose and MouthNose and Mouth Mucous Lined Breathing PassagesMucous Lined Breathing Passages Cilia in TracheaCilia in Trachea

21 Smoking Impact Impairs Body’s Defense MechanismImpairs Body’s Defense Mechanism Increased Risk of Lung CancerIncreased Risk of Lung Cancer

22 Relationship Between Smoking and Asbestos Risk of Lung Cancer 2% - Non smoker with no asbestos exposure 5% - Non smoker with asbestos exposure 10% - Smoker with no asbestos exposure 50% - Smoker with asbestos exposure

23 Asbestosis Asbestosis is a serious, chronic, non-cancerous respiratory disease. Inhaled asbestos fibers aggravate lung tissues, which cause them to scar. Symptoms of asbestosis include shortness of breath and a dry crackling sound in the lungs while inhaling. In its advanced stages, the disease may cause cardiac failure. Why?

24 Asbestosis There is no effective treatment for asbestosis; the disease is usually disabling or fatal. The risk of asbestosis is minimal for those who do not work with asbestos; the disease is rarely caused by neighborhood or family exposure Those who renovate or demolish buildings that contain asbestos may be at significant risk, depending on the nature of the exposure and precautions taken

25 Lung Cancer Lung cancer causes the largest number of deaths related to asbestos exposure. The incidence of lung cancer in people who are directly involved in the mining, milling, manufacturing and use of asbestos and its products is much higher than in the general population The most common symptoms of lung cancer are coughing and a change in breathing. Other symptoms include shortness of breath, persistent chest pains, hoarseness, and anemia

26 Mesothelioma Mesothelioma is a rare form of cancer that most often occurs in the thin membrane lining of the lungs, chest, abdomen, and (rarely) heart. About 200 cases are diagnosed each year in the United States. Virtually all cases of mesothelioma are linked with asbestos exposure. Approximately 2 percent of all miners and textile workers who work with asbestos, and 10 percent of all workers who were involved in the manufacture of asbestos-containing gas masks, contract mesothelioma.

27 Mesothelioma People who work in asbestos mines, asbestos mills and factories, and shipyards that use asbestos, as well as people who manufacture and install asbestos insulation, have an increased risk of mesothelioma So do people who live with asbestos workers, near asbestos mining areas, near asbestos product factories or near shipyards where use of asbestos has produced large quantities of airborne asbestos fibers

28 Other Cancers Evidence suggests that cancers in the esophagus, larynx, oral cavity, stomach, colon and kidney may be caused by ingesting asbestos

29 Famous Persons – Mesothelioma Steve McQueen Warren Zevon Bruce Vento Paul Gleason Bob Miner Terrence McCann Merlin Olsen

30 What Is An Asbestos Containing Material (ACM)? Any material that is >1% asbestos –Thermal System Insulation (TSI): pipe, boiler, duct & furnace insulation –Surfacing Materials: plaster & textured ceilings –Miscellaneous Materials: siding & floor tile Over 3,000 products may contain asbestos

31 MDH Definition of Friable Material "Friable asbestos material" means any material containing more than one percent asbestos by microscopic visual estimation by area, that hand pressure can crumble, pulverize, or reduce to powder when dry.

32 MDH Definition of Friable Material Friable asbestos material includes previously non-friable asbestos material which becomes damaged to the extent that when dry all or a portion of the material may be crumbled, pulverized, or reduced to powder by hand pressure.

33 Common Asbestos-Containing Materials Insulation around heating, air and water systems

34 Common Asbestos-Containing Materials Wall and ceiling insulation (vermiculite)

35 Vermiculite Has been used in approximately million homes. Recently identified as being contaminated with asbestos. May not be “regulated”, but has shown to create a health hazard in the form of high airborne fiber concentrations in materials with low asbestos concentrations.

36 Common Asbestos-Containing Materials Fireproofed Ceiling Space

37 Common Asbestos-Containing Materials Textured ceilings and ceiling tiles

38 Common Asbestos-Containing Material Floor tiles and linoleum backing

39 Common Asbestos-Containing Materials Transite roofing, siding, panels, and flue pipes

40 Common Asbestos-Containing Materials Plasters and joint compounds

41 Example of Category I Nonfriable: Vinyl Floor Tile

42 Example of Category I Friable: Vinyl Floor Tile

43 Linoleum/Vinyl Sheet Flooring – Backing Generally Friable


45 Example of Category II: Not Regulated Unless Broken Transite board (Johns Mansville)

46 Textured Ceiling Spray – Friable

47 Milboard (Black Paper Layer) – Friable

48 Insulation on Pipes – Friable

49 Preformed Pipe Wrap – Friable

50 Heating-system Insulation – Friable

51 High-temp Insulation – Friable

52 Mud-pack on Elbow – Friable

53 Transite Pipe – Regulated When Broken

54 Insulation – Friable (tape and wrap may be asbestos)

55 Roofing (Category I) – Usually Not Friable

56 Asbestos Building Surveys MPCA and MNOSHA require surveys –When there is no survey –When the survey does not include the material that will be disturbed Surveys must be completed by a MN certified asbestos inspector MDH rules define sampling and reporting protocols

57 Building Survey Report Must contain exact locations of all asbestos- containing materials (ACM) Must be signed and dated by the MN certified inspector Must include a copy of the MN certified inspector’s certification

58 Asbestos Bulk Sampling

59 Regulated Asbestos Work Material is greater than 1% asbestos by microscopic determination Material is Friable Material amounts are greater than 160 square feet, 260 linear feet, 35 cubic feet in a commercial setting or greater than 6 square feet, 10 linear feet, 1 cubic foot in a residential setting

60 Regulation of ACM in Minnesota? Minnesota Department of Health (MDH) –Protects Public Health Minnesota Statues, sections – Minnesota Rules, parts – Minnesota Pollution Control Agency (MPCA) –Protects the Environment Environmental Protection Agency – Title 40 CFR Part 61, Subpart Minnesota Department of Labor & Industry (MNOSHA) –Protects Workers US Dept of Labor & Industry – Title 29 CFR Part

61 Regulated Asbestos Work Requires the following: Notification of the Project Use of Appropriate Work Practices Use of Licensed Asbestos Contractors Use of Certified Asbestos Disciplines

62 Asbestos Abatement Activities EncapsulationEncapsulation EnclosureEnclosure RemovalRemoval

63 Asbestos Abatement Activities Survey to identify ACM?Survey to identify ACM? Specifications/project designSpecifications/project design NotificationNotification Work Area ContainmentWork Area Containment Posting of Work AreasPosting of Work Areas Engineering Controls/PPEEngineering Controls/PPE Air Monitoring – I/OAir Monitoring – I/O Disposal of ACM WasteDisposal of ACM Waste Clearance TestingClearance Testing

64 Who Can Remove Asbestos- Containing Materials? MDH and MPCA requires MN licensed asbestos abatement contractors to: –Submit a notification –Employ and use certified workers and supervisors –Comply with MDH work practices MDH allows homeowners to do own removal in the residence they live in and own MNOSHA requires a competent person at a minimum

65 Suspect Material – ACM? Before starting a project make sure that asbestos-containing material will not be disturbedBefore starting a project make sure that asbestos-containing material will not be disturbed Assume all suspect material contains asbestos if no dataAssume all suspect material contains asbestos if no data If you encounter suspect material when performing work STOP immediatelyIf you encounter suspect material when performing work STOP immediately

66 What To Do? If you see something that strikes you as wrong or suspicious, do not enter the area Instruct other workers, contractors and building occupants to stay out of the area Contact MDH, MPCA or MNOSHA

67 Agency Assistance Provide clarification/interpretation of regulations Assist property owners or contracting entities in understanding their responsibilities Assist licensed asbestos contractors and other contractors in maintaining compliance with the regulations Provide lists of: –licensed asbestos contractors –environmental consulting firms –analytical laboratories –Hazardous waste landfills Provide compliance history

68 Why does MDH conduct compliance inspections? To determine compliance with the Minnesota Asbestos Abatement Act and Rules To protect Public Health and the Environment

69 Agency Inspections Three Primary Types Pre-Project (variance) Scheduled (based on notifications) Complaint (workers, contractor, homeowner)

70 How are violations determined? Violations are identified –On-site observation –Through project documentation review







77 What are the Types of Violations? Administrative Violations Work Practice Violations

78 Common Administrative Violations Certification (Hard Card) Issues –Expired –Not On Site License, Permit, Notification Issues Project Plan Issues –Incomplete Manometer Record Issues –Not Recorded –Missing Records

79 Common Work Practice Violations Installation of Critical Barriers Containment Decontamination Units Removal of ACM Completion of Abatement Glove Bag Procedures Facility Component Removal (Wrap and Cut) Air Monitoring

80 What Causes Violations? Multiple Distractions Working Too Fast Working Carelessly Relying On The Hygienist

81 Questions? MDH – MPCA – MNOSHA –

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