Experiences with Asbestos Post         Earthquake       Dr Michael Gray
From http://www.rebuildchristchurch.co.nz/residential/suburbs/christchurch-central-city
Outline• What is asbestos and where is it found• Christchurch Earthquakes• Asbestos issues and earthquakes• Being prepared...
What is Asbestos?Naturally occurring mineral3 most common...  Chrysotile (white)  Amosite (brown)  Crocidolite (blue)
Why was it used?• Air pockets create good heat insulation• Heat and fire resistant• Fibres can be woven• Cheap and readily...
Why is asbestos a problem?    • Long term health effects      from inhalation of fibre        • Asbestosis        • Lung C...
Cement Board• Cladding / Soffits• Roofs
Interiors• Vinyls• Ceilings• Heating
Pipe Insulation• Old-style cellulose• Glass Fibre• Calcium silicate
Floor Penetration Fire Proofing• Floor Penetrations• Sprayed Material• Structural Metal
canterburyquakelive.co.nz
www.christchurchquakemap.co.nz
September   February
Red Zone Urgent Demolition• There will inevitably be contaminated  debris as it is not possible to identify and  isolate a...
Disposal• Asbestos waste          $336 per tonne• Clean hard fill         $25 per tonne(special earthquake rate)
Non-urgent work
We had an audit done       We’ve just had the10 years ago, do you    ceiling re-done… do youhave the records? (we   think ...
Residential Properties
• Asbestos issues discovered that were not  related to the earthquakes.
Other Asbestos ‘Incidents’
Asbestos Audits & Registers              What are you going to              do now?              Do you know for certain  ...
Audits & Registers
Responsibility as Principal• Ensure maintenance staff and contractors  are fully informed that asbestos is present.• Ensur...
www.chemsafety.co.nz
Experience with Asbestos Post-Earthquake
Experience with Asbestos Post-Earthquake
Experience with Asbestos Post-Earthquake
Experience with Asbestos Post-Earthquake
Experience with Asbestos Post-Earthquake
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Experience with Asbestos Post-Earthquake

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Michael J Gray Ph.D
Managing Director, Chemsafety Ltd
303 Blenheim Road, Christchurch
mike@chemsafety.co.nz

(P30, Friday 28, Civic Room 3, 11.30)

Published in: Health & Medicine, Technology
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Experience with Asbestos Post-Earthquake

  1. 1. Experiences with Asbestos Post Earthquake Dr Michael Gray
  2. 2. From http://www.rebuildchristchurch.co.nz/residential/suburbs/christchurch-central-city
  3. 3. Outline• What is asbestos and where is it found• Christchurch Earthquakes• Asbestos issues and earthquakes• Being prepared for any asbestos incident
  4. 4. What is Asbestos?Naturally occurring mineral3 most common... Chrysotile (white) Amosite (brown) Crocidolite (blue)
  5. 5. Why was it used?• Air pockets create good heat insulation• Heat and fire resistant• Fibres can be woven• Cheap and readily available
  6. 6. Why is asbestos a problem? • Long term health effects from inhalation of fibre • Asbestosis • Lung Cancer • Mesothelioma8
  7. 7. Cement Board• Cladding / Soffits• Roofs
  8. 8. Interiors• Vinyls• Ceilings• Heating
  9. 9. Pipe Insulation• Old-style cellulose• Glass Fibre• Calcium silicate
  10. 10. Floor Penetration Fire Proofing• Floor Penetrations• Sprayed Material• Structural Metal
  11. 11. canterburyquakelive.co.nz
  12. 12. www.christchurchquakemap.co.nz
  13. 13. September February
  14. 14. Red Zone Urgent Demolition• There will inevitably be contaminated debris as it is not possible to identify and isolate asbestos materials before demolition.• Issues for workers and those down-wind, dust suppression• Transportation• Disposal
  15. 15. Disposal• Asbestos waste $336 per tonne• Clean hard fill $25 per tonne(special earthquake rate)
  16. 16. Non-urgent work
  17. 17. We had an audit done We’ve just had the10 years ago, do you ceiling re-done… do youhave the records? (we think it could have been can’t find them) asbestos?Yes, the asbestos was all removed from the building years ago. What’s this then?
  18. 18. Residential Properties
  19. 19. • Asbestos issues discovered that were not related to the earthquakes.
  20. 20. Other Asbestos ‘Incidents’
  21. 21. Asbestos Audits & Registers What are you going to do now? Do you know for certain whether or not you have asbestos?
  22. 22. Audits & Registers
  23. 23. Responsibility as Principal• Ensure maintenance staff and contractors are fully informed that asbestos is present.• Ensure they are aware of procedures to follow• Recommend Asbestos Awareness Training, preferably tailored to your site.• Update asbestos register following removal or following new findings.
  24. 24. www.chemsafety.co.nz

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