asbestos and health l.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Asbestos and Health PowerPoint Presentation
Download Presentation
Asbestos and Health

Loading in 2 Seconds...

play fullscreen
1 / 28

Asbestos and Health - PowerPoint PPT Presentation


  • 149 Views
  • Uploaded on

Asbestos and Health. Overview. Background on asbestos Uses of asbestos Health Effects Risk factors Medical tests Proper handling Standards/ guidelines. What is Asbestos?. Mineral Fibrous White/grey Indestructible Fireproof. How Long Has it Been a Problem?.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Asbestos and Health' - cato


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
overview
Overview
  • Background on asbestos
  • Uses of asbestos
  • Health Effects
  • Risk factors
  • Medical tests
  • Proper handling
  • Standards/ guidelines
what is asbestos
What is Asbestos?
  • Mineral
  • Fibrous
  • White/grey
  • Indestructible
  • Fireproof
how long has it been a problem
How Long Has it Been a Problem?
  • Early Greek miners wore face masks from animal bladders
  • Insurers stopped selling insurance in 1915
  • Cancer cases in 1930’s
  • Asbestos industry withheld information
  • Selikoff studies in 1960’s
  • Banning of some uses in 1980’s
uses of asbestos
Uses of Asbestos
  • Fireproofing of buildings
  • Heat insulation
  • Strengthen building materials
products that can contain asbestos
Products that can contain asbestos
  • Spray insulation
  • Pipecovering
  • Asbestos cloth
  • Cements, mastic, sealants
  • Roofing materials
  • Floor & ceiling tiles
  • Plaster & taping compound
hazards of asbestos
Hazards of Asbestos
  • Harmful only when breathed in (maybe when swallowed)
  • Fiber shape: long, thin
  • Travels in air, gets deep in lungs
  • Sharp shape gets stuck in lungs
  • Doesn’t break down
asbestos diseases
Asbestos Diseases
  • Asbestosis
  • Pleural Plaques
  • Cancer
    • Lung
    • Mesothelioma
    • G-I Tract
asbestos diseases9
Asbestos Diseases
  • No completely safe levels
  • Higher the exposure, higher the risk
  • Low exposures have low risk
  • Everyone exposed to asbestos
  • Lag time (latency) of 10-40 years
  • No acute effects
asbestosis
Asbestosis
  • Not cancer
  • Scarring of lungs
  • From high exposures
  • Causes shortness of breath
pleural plaques
Pleural Plaques
  • Scars on lungs
  • Shows up on x-rays
  • Marker of asbestos exposure
  • Half of heavily exposed will have
  • “Not a disease”: no symptoms
  • Does not change into cancer
  • Legally considered a disease
lung cancer
Lung cancer
  • Most common problem with asbestos
  • Heavily exposed workers have 5-7 times increased risk over lifetime
  • About same level of risk as a pack a day cigarette smoking
  • Interacts with cigarettes: 50-90 times increased risk for both combined
  • Quitting smoking reduces risk
other cancers
Other Cancers
  • Mesothelioma
    • Cancer of lining of the lungs
    • Only caused by asbestos
    • Smoking not a risk factor
  • G-I tract cancer
    • 2-3 times increased risk for heavily exposed
medical tests
Medical tests
  • Physical
  • History
  • X-rays
  • Lung function tests
what is risk
What is Risk?
  • Studies are from heavily exposed asbestos workers
  • Construction trades working with asbestos have 1/4 or less risk than asbestos workers
  • Chemical plant maintenance has about 1/8
  • Other maintenance workers are much lower
  • Asbestos has been phased out & removed in many areas
safe handling of asbestos
Safe handling of asbestos
  • Find out where the asbestos is
  • Management plan
  • Remove if needed by licensed contractors
  • Only dangerous if is in the air
    • Removal may be more dangerous than leaving
    • If is bound in material (tiles, etc) is not a hazard
  • Should be labeled if left in place
safe handling of asbestos17
“Safe” handling of asbestos
  • No absolutely safe exposure
  • Wet methods
  • HEPA vacuums and respirators
  • Never dry sweep or compressed air
  • Stays in air for days
  • Small fibers can’t be seen
  • “Friable” asbestos means it can be crumbled
maintenance asbestos
Maintenance & asbestos
  • Do not drill, sand, or saw asbestos materials
  • Wet mop rather than dry sweep or dust
  • Do not use a regular vacuum: only HEPA
  • Do not disturb asbestos materials
  • If use a face mask, only HEPA
  • If are air filters, use wet methods, do not shake
training removal
Training/ removal
  • Removal by certified contractors
    • Enclosures, ventilation, wet methods, HEPA
    • Glove bags, wetting agents, signs
  • Encapsulation
  • Training needed based on level of exposure
  • Level 4 for clean up of asbestos containing materials
  • Proper disposal while still wet; labeled bags
regulations
Regulations
  • EPA regulations on removal
  • OSHA Standard for general industry or construction
  • State licensing for asbestos removal
  • Workers’ compensation
  • Reporting of suspected occupational diseases
epa control of asbestos in buildings
EPA:Control of Asbestos in Buildings
  • Survey to see if asbestos is present
  • Operations and Management Program
  • Assess the asbestos
  • Abatement if needed
survey
Survey
  • Appoint manager & team
  • Check building records
  • Locate & document all asbestos in records
  • Inspect for friable
  • Collect & test samples
  • Document
operations and maintenance
Operations and Maintenance
  • Contact building managers & maintainers
  • Educate employees and occupants
  • Train custodians/ maintainers
  • Clean using HEPA & wet methods; regular basis
  • Special precautions for construction work
  • Inspect twice a year
  • Continue program until all asbestos removed
assess asbestos
Assess Asbestos
  • Assess current conditions and chances of disturbance
  • Determine
    • Need for further action
    • When it needs to be done
    • What abatement methods to use
conduct abatement if needed
Conduct Abatement if Needed
  • Hire contractor:
    • To select:
      • Precise contract
      • Check references
      • Interview
      • Insurance
      • Best, not low bid
managing abatement
Managing Abatement
  • Inspect 4 times a day
    • Containment barrier
    • Coveralls & respirators
    • Changing & decontamination facilities
  • Stop work if problem
  • Release only when
    • Cleaned at least twice
    • Visual test
    • Airborne asbestos test
osha standard
OSHA Standard
  • Applies if over maximum exposure
  • Maximum of 0.2 fibers per cc of air (8 hour)
  • Maximum of 1 fiber per cc (30 minute)
  • Exposure monitoring if above action level (0.1 fiber per cc)
  • Engineering controls where feasible
  • Proper respirators
osha standard 2
OSHA Standard (2)
  • Regulated areas
  • Labels
  • Recordkeeping for 30 years
  • Protective clothing
  • Change rooms & showers
  • Medical Exams