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Mold by TPenney

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									        Mold
       Capital                             M
       Capital                             O
       Capital                             L
       Capital                             D
Your Green and Black Enemy is
    Knocking at your Door

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First do your Hazard Assessment




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               Considerations
Three Things Needed for Growth and Proliferation of Microbial
Organisms on Building Materials


Sources, Food and Moisture
1. Sources – All Around
• Airborne
• Waterborne
• Vectors




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                   Considerations
 2. Food
 Most building materials and building contents are great microbial food,
 including:


• Cloth upholstered products                          •    Gypsum wallboard;
                                                      •    Wood products;
• Any paper products;
                                                      •    Ceiling tiles; and
• Insulation (particularly                            •    Carpet
  paper backing)




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          Considerations
3. Moisture
• Standing water
• Humid air
• Wet surfaces




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 Considerations – Why
 Worry?
Health
• Direct illnesses from contaminated water and surfaces through
inhalation, ingestion or dermal contact
• Allergic Reactions - sensitivity to mold or other organisms
Liability
• High profile topic – many lawsuits
• O H & S requires appropriate worker protection for hazardous material
and environments
• Future users of building may be affected by inadequate cleaning and
remediation efforts
Time
• The longer conditions remain, the more growth will spread
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• The sooner the problem can be addressed, the better
                    What Do I Do?

•Address mold and moisture first to reduce risk to others who need to
work in the building


• EPA Recommendations:
    •Surfaces wet longer than 48 hours with“clean water” should be
    considered to be potentially contaminated;
    •Any surfaces in contact with “dirty water” should be considered to
    be contaminated




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 What’s the Plan for Cleanup?
• Assess size of moldy area (square feet)
• Consider the possibility of hidden mold
• Clean up small mold problems and fix moisture problems before
they become large problems
• Select qualified remediation manager for medium or large size
mold problem
• Identify source(s) or cause of water or moisture problem(s)
• Note type of water-damaged materials (wallboard, carpet, etc.)
• Check inside air ducts and air handling unit
• Throughout process, consult qualified professional if necessary or
desired

                                                                  (Source: EPA)
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                Can I Do It Myself?
                Personal Protection
Small Areas                                           Large Areas                       (more
(less than 10 square feet)                            than 100 square feet)
• N95 respirator, Gloves, Goggles; no                 • Gloves, disposable full body
containment necessary                                 clothing, head gear, foot coverings,
                                                      full-face respirator with HEPA filter;
Medium Areas (10-100 square feet)
                                                      • Full Containment
• Smaller Range Cleanup: Gloves,
N-95 respirator or half-face respirator               (from EPA: assumes “Clean Water”
with HEPA filter, disposable overalls,                situation with some mold growth;
goggles/eye protection; Limited                       “dirty water” situations should be
Containment                                           assessed by qualified professionals;
• Larger Range Cleanup: Gloves,                       O H & S regulations apply for
disposable full body clothing, head                   Respiratory and Personal Protective
gear, foot coverings, full-face                       Equipment)
respirator with HEPA filter; Full
Containment
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Categories of Water During
     Water Damage


  • Category 1 – Clean Water
  • Category 2 – Gray Water
  • Category 3 – Black Water




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   Category 1 – “Clean Water”


Water that
originates from
sources that do not
have additives,
contaminants, or
large numbers of
pathogenic
microorganisms



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     Category 2 – “Gray Water”


• Contains biocontaminants (fungal, bacterial,
viral, algae)
• Contains contaminants that microorganisms
use for nutrients
• Can cause discomfort or sickness to humans
• If left untreated for 48 hours or longer, may
change to Category 3 (“Black Water”)


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 Potential Health Effects from
Categories 1 & 2 Water Damage

• Allergic asthma
• Allergic rhinitis
• Hypersensitivity pneumonitis (lung tissue inflammation)
• Burning eyes, skin irritation
• Low grade inflammatory response such as nausea, headache,
fever




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   Possible Infectious Agents in
  Categories 1 & 2 Water Damage

Bacteria:                                    Fungi and Molds
•Legionella pneumophila                      •Histoplasma capsulatum
•Escherichia coli                            •Cryptococcus neoformans
•Streptomyces                                •Aspergillus species
•Thermoactinomyces                           •Penicillium
Saccharopolyspora (endotoxins)               •Stachybotrys chartarum (atra)




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Possible Noninfectious Agents in
Categories 1 & 2 Water Damage

    Microbial Volatile
    Organic Compounds (MVOCs):
    •Give characteristic musty, moldy odor
    •Produced by active bacteria and fungi
    •Some individuals are extremely sensitive to MVOCs




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     Category 3 – “Black Water”

•Contains pathogenic agents, and results in unsanitary conditions
                                       and/or
• Contains silt and organic matter (visible)
                                       and/or
• Water has been contaminated with pesticides, heavy metals, or toxic
organic substances
• Color is not an indicator of Category 3 water




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Examples of “Black Water”

• Includes sewage (domestic, industrial, and non-point
sources: ground, surface, sea, river, and atmospheric
water)
• Toilet backflows originating from beyond the toilet trap
• All forms of flooding (sea water, ground and surface
water, rivers or streams)




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   Examples of Bacterial Agents
   in Category 3 Water Damage

•Bacteria – Escherichia coli, Salmonella, Shigella, Campylobacter,
Pseudomonas aeruginosa, Bacillus (spore producing)


•Soil organisms – Thermoactinomyces, Streptomyces,
Saccharopolyspora, Thermomonospora




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 Examples of Other Pathogenic
Organisms Possible in Category 3
        Water Damage


• Viruses – Rotovirus, Hepatitis A, Adenovirus, Norwalk-type Agent,
Echovirus, Coxsackievirus
• Parasites – Giardia lamblia, Cryptosporidium, Entamoeba histolytica,
Balantidium coli
• Helminths – Nematodes (roundworms), Cestodes (tapeworms)




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   Health Effects in Category 3
         Water Damage
•Severe diarrhea
•Dysentery
•Inflammation of the liver
•Respiratory and eye infections




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          Key Factors

• If it can be thrown away, throw it away;
Replacements may be less expensive in the long
term (and short term) than attempting to
decontaminate some surfaces
• If it cannot be disposed of, decontaminate and
then dry as thoroughly as possible; Moisture
removal is a key factor to preventing future growth
• Wallboard can often be cut to the point of
contamination (and some measure beyond) and
those sections replaced;




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    Key Factors (continued)



• Mold may be present that cannot be seen. It only takes a
little bit to grow to become a lot!
• Clean all tools after use, or dispose if possible
• Avoid direct contact as much as possible
Example: When cleaning silt and debris, use shovels and
other longer handled tools – clean after each shift




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          Other Hazards (few examples)
Shock Hazards
• Turning off the supply of electricity (circuit breakers) to damaged areas
• Anticipate that electricity may be restored suddenly without notice
Structural Integrity
• When in doubt, obtain an evaluation by a licensed and qualified builder or
structural engineer before entering
Chemical Mixtures
• Attempts to mix chemicals to clean can cause further damage
•Example – Ammonia & bleach mixed together can cause toxic gas release
Asbestos
• Asbestos-containing materials may have been disturbed during flooding, and
upon drying, fiber releases could occur
• Check inspection reports or inspect materials

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QUESTIONS AFTER
YOU PUT ON YOUR
PPE

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