Exposure:
Inhaling Digesting Skin Contact Mold: Causes structural
deterioration. Can render a property inhabitable Result of:
water intrusion high levels of humidity Conditions Conductive
toÉ.
The US Consumer Product Safety Commission and American Lung
Association estimates that 30 to 50% of all structures have
damp conditions favorable to amplification of biological pollutants.
The Scope
There are 94.7 million households or units in the US.
- 61
million are owner occupied
- 33
million are renter occupied
- 59
million are single structures
So...
By the Preceding Data Approximately 27.8 million homes have
Conductive Conditions (Dampness) Of these, approximately _
or 7 million have a microbial concern. The Fire Water Restoration
Industry estimates 5.6 million New Water Restoration jobs
annually. Of these, we estimate 1.5 million with microbial
concern.
According
to the previous data it is estimated that 8.5 million structures
have a true microbial concern.
Mold
Awareness
What is mold? Mold-n.. A growth of minute fungi of various
kinds, esp. those of great groups. Hyphomycetes and Physomycetes,
forming on damp or decaying organic matter. Fungi Basics
3 Main Classifications
-
Zygomycota-bread mold
- Ascomycota-
Some bread yeasts, powdery mildews, blue-green, red and
brown molds and edible morels and truffles.
- Basidiomycota-Fungi-mushrooms,
toadstools.
Others
can cause negative health effects such as asthma or allergic
reactions Most mold found indoors comes from outdoors Mold
needs 3 things to survive
- Moisture
-
Food source
- Surface
to grow on
Body
plan of Fungus
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Mold in bathroom.
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Mold under sink
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Most fungi are filamentous molds consisting of long, branched
threadlike strings (or filaments) of cells called: Hyphae
Many fungi particularly those that cause disease in humans:
dimorphic Mold Metabolism & Growth
Spores contact appropriate substrate then germinate Hyphae
emerge from spore and start to grow Hyphae secrete enzymes
into substrate degrading its organic compounds for absorption
Fungi grow best in dark moist habitats Moisture necessary
for growth and can obtain this for atmosphere and food source
Dry environment= dormacy= spore production When is it a Problem?
- When
Growing in large concentrations
- Actively
producing spores and gases that become airborne and are
inhaled in large numbers
- Breaks
down building materials
What
causes mold to Grow?
Moisture
-30 to 50% of all properties have water infiltration this
year.
- Building
materials (food source)
-
Limited ventilation
- Poor
construction
What
causes Mold to Grow at Home? Tight
houses- in the 70s we began building our structures tighter.
-
Energy efficiency
-
Poor maintenance and/or unknown leaks
-
Lack or timely repairs and maintenance by the occupant
or owner-largely contributes to problems
Health
Effects of Mold Exposure
Outdoor
air mold concentration effects everyone.
Heavy indoor air concentrations are a concern Health
effects attributed to 2 components
- Mold
spores
- Mold
toxins (naturally forming compounds that initiate a toxic
response in humans)
Potential
producers or indoor toxins: Penicillium & Aspergillus
About
50 million Americans are affected with asthma or allergy
sensitivity, many of these are related to mold exposure.
" The
prevailing medical opinion has been that mold accounted
for 6 to 7% of all chronic sinusitus...we found that it
was 93%, the exact opposite."- Newsweek, Sept/Oct 2000
Population
Most Effected
- Children
- Pets
- Expecting
- Elderly
- Immune
Suppressed
Health
Effects
- Respiratory
failure/asthma
- Flu
symptoms/ headaches
- Nose
bleeds/ bleeding lungs
- Neurological
disorders
"Red
Flags" = Conditions Conductive to Microbial Growth
- Visible
signs of mold
- Mold
smell
-
Evidence of water penetration
- Evidence
of conditions that would allow water penetration
- Construction
defects
- Dirty/
Poorly maintained HVAC
-
Improperly vented appliances
Inspecting
for "Red Flag" Conditions
- Foundation
& grade conditions
- Window
systems and flashing conditions
-
Decks/ Patios/ Balconies
- Roof
systems and flashing
- Any
interior plumbing leaks and water stains
-
HVAC system conditions
- Smell/
Visible mold
Carefully
Look at All Areas
- -behind
refrigerator
-
-window frames
-
-under the sinks
-
-door frames
-
-around toilets
-
-ceiling tiles
- -laundry
room
-
-HVAC system
-
-crawl space
- -condensation
pan
-
-attics
- -vents
-
-baseboards
-
-filter
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