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Indoor mold
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Transcript

  • 1. By Eric C. Ratcliff
  • 2. Mold Investigations• CCGHD investigates mold complaints• Accept written complaints from currenttenants or close relatives• Don’t inspect owner occupied homes• Investigate only indoor mold issues• Don’t take samples – not useful
  • 3. Black Mold• CCGHD interested only in black mold• Recommend removal of other varieties• Mold & mildew are synonymous• An allergen like pollen• No scientific evidence of adverse healtheffects• Anecdotal evidence of health effects
  • 4. Health Effects of Mold• Mainly respiratory – coughing, sneezing, sorethroat, runny nose, congestion• Other allergic reactions – headaches, burningeyes, skin rash, etc.• Irritant• Does not cause colds• Can aggravate colds, flu, & Asthma
  • 5. Exposure Limits• No exposure limits• Link to health effects not scientificallysubstantiated• Not known what quantity is acceptable• Sensitivity to mold varies from person toperson
  • 6. “Toxic Mold”• “Toxic mold” a misnomer• Mold itself isn’t toxic• Produce mycotoxins as a by-product• Toxic only if ingested• Stachybrotrys - “toxic” variety < 1% of mold• CCGHD assumes all black mold is “toxic”
  • 7. “Killer Mold”• “Killer mold” - media hype• Began by flawed study in Cleveland• CDC retracted entire study• Misinformation perpetuated by media &lucrative lawsuits
  • 8. Mold Problem ?• Sanitarian identifies mold problem visually &by odor• Musty odor, & 10 sq. ft. or more of visibleblack mold indicates a mold problem
  • 9. Mold Removal• < 10 sq. ft. is a small amount• 10 sq. ft. or more is generally the landlord’sresponsibility• < 10 sq. ft. - responsibility of the tenant
  • 10. Large Amount Small Amount
  • 11. Large Amount Small Amount
  • 12. Mold Not An Issue• If sanitarian can’t see it or smell it• In wall or ceiling cavity – provided there areno holes• In unfinished attic• In unfinished basement• In garage
  • 13. County Requirements• Require removal in occupied rental units• No requirement for removal in vacant units• No requirement for removal in owneroccupied dwellings• Will issue NOV to landlord if appropriate
  • 14. Outdoor Mold• Not a health nuisance issue• Cannot be controlled• Not regulated• No requirement for removal
  • 15. Algae on Buildings• Green color• Algae is not mold• No adverse health effects• No requirement for removal
  • 16. Window & Door Frames• Responsibility of tenant to clean windows,window frames, & door frames• Recommend regular cleaning
  • 17. Bathroom Fixtures• Tenant’s responsibility to clean bathrooms, &remove mold caused by showering• Also tenant’s responsibility to clean toilets
  • 18. Water Stains• Water stains not a violation• Water stains can be confused with mold
  • 19. Causes of Indoor Mold• Water leaks• Excessive moisture• Mold needs moisture or water to grow• The key to controlling mold is controllingmoisture
  • 20. Mold Prevention• Repair leaks such as roof leaks, plumbingleaks, etc.• Direct water away from buildings• Repair downspouts• Clean gutters
  • 21. Mold Prevention• Eliminate sources of moisture• Vent clothes dryer properly• Remove water on windowsills• Wipe down shower stall• Use bathroom vent• Purchase dehumidifier
  • 22. Mold Prevention• Keep furniture 4” - 6” away from outside wall• Keep interior doors open• Provide adequate ventilation• Maintain adequate heat• Report water leaks to landlord
  • 23. Mold Removal Procedure• If you see mold, remove it• Clean affected area w/ detergent & water• Rinse• Sanitize w/ 10% bleach solution• Let dry• Paint or seal if desired
  • 24. Personal Protective Equipment (PPE)• Respirator – half face w/ dust cartridges• Gloves – especially when using bleach• Coveralls or long sleeves
  • 25. Containment• Not required – mold isn’t asbestos• Doesn’t prevent mold – it’s already present• Keeps other areas clean• Limits exposure
  • 26. Moldy Carpet• Should be discarded, along with pad• Mold develops in wet carpet in ~ 6 days• Mold cannot be removed from textiles• Wet carpet should be taken up & dried• At least wet vac carpet
  • 27. Other Moldy Items• Professionally clean upholstered furniture• Clean leather w/ saddle soap• Separate books & papers – let dry• Wash & dry fabrics• Discard items
  • 28. Mold Remediation Companies• No state certification• Contact BBB• Get 3 estimates & a written contract• Costs $10,000.00 for basement• Save money - use elbow grease
  • 29. Professional Mold Inspections• No state certification• Air samples - $300.00 each• Complete air study - $3,000.00+• Air study includes indoor & outdoor sampling• Establishes relative concentrations
  • 30. Mold Test Kits• Available in hardware stores• Various kits available• Not recommended by CCGHD• If you test for mold, you will find it• If you can see it, remove it
  • 31. Resource List• www.clermonthealthdistrict.org• www.cdc.gov• www.epa.gov• www.aiha.org
  • 32. The End