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1
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- Back to the basics
- Mycology 101
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2
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3
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- Your speakers today are:
- The most knowledgeable in the field
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4
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- Your speakers today are :
- The most knowledgeable in the field
- Are very respected at the health department.
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5
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- Your speakers today are :
- The most knowledgeable in the field
- Are very respected at the health department.
- Very funny in real life.
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6
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- Your speakers today are :
- The most knowledgeable in the field
- Are very respected at the health department.
- Very funny in real life.
- Sometimes delusional ( but this makes for some great laughs )
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7
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- Unfortunately this is a very boring subject to some.
- I took plenty of mycology in college but I didn’t have to study
because……
- I will try to inject humorous pictures
- Gus on the other hand will thrill you with disease and danger. Don’t be fooled, his part of the talk
is just as boring.
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8
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- Various types of damaging growths
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- Various types of damaging growths
- Requirements for indoor growth
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10
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- Various types of damaging growths
- Requirements for indoor growth
- Identification
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- Various types of damaging growths
- Requirements for indoor growth
- Identification
- Sampling
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12
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- Various types of damaging growths
- Requirements for indoor growth
- Identification
- Sampling
- Toxicological effects on humans
- Personal protective equipment
- Remediation
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13
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- What is the fungus among us?
- Aspergillis Nigerà
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14
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- What is fungus?
- Fungi are not plants.
Living things are organized for study into large, basic groups
called kingdoms. Fungi were listed in the Plant Kingdom for many years.
Then scientists learned that fungi show a closer relation to animals, but
are unique and separate life forms. Now, Fungi are placed in their own
Kingdom.
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15
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- What is fungus?
- Fungi are not plants.
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16
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- What is fungi?
- Molds are Fungi
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17
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- What is a mold?
- Molds are small organisms found almost everywhere, inside and outside,
including on plants, foods and dry leaves. They can be nearly any color
– white, orange, green or black. Molds are beneficial to the environment
and are needed to break down dead material. Very tiny and lightweight,
mold spores travel easily through the air.
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18
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- What is a mold?
- Most building surfaces can provide adequate nutrients to support the
growth of mold. When mold spores land on material that is damp – for
example, walls, floors, appliances (such as humidifiers or air
conditioners), carpet or furniture – they can begin to multiply. When
molds are present in large numbers, they may cause allergic symptoms
similar to those caused by plant pollen.
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19
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- What is a mold?
- You are exposed to some mold every day, usually by touching, eating or
breathing it. When mold is growing on a surface, spores can be released
into the air where they can be easily inhaled. A person who ingests or
inhales a large number of spores may suffer adverse health effects.
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20
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- Why does mold smell?
- The musty odors produced by molds are known as Microbial Volatile
Organic Compounds. (These compounds are abbreviated as mVOCs.) Some
mVOCs produce musty and moldy odors, which result from the chemical
changes taking place during the mold life process. They are waste
products given off by actively growing molds.
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21
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- Why does mold smell?
- Health effects such as headaches, dizziness and nausea have been linked
to exposure to mVOCs, but research is only beginning. Odors from mVOCs
are a sign that mold is actively growing and so may indicate a level of
mold contamination requiring remediation.
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22
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- How does a mold eat?
- Molds digest food by producing enzymes outside of their cells. The
enzymes break down foods in their environment into small molecules, and
then the mold brings back the molecules into its cells for continued
digestion and energy.
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- How does a mold eat?
- This, of course, is the opposite of what people do - we eat foods from
outside of our bodies, and the enzymes to break the food down are inside
of our stomach.
- - they literally digest their way through the material!
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- Some molds make good neighbors-
- Penicillin, yeast, cheese, beer and wine
- Some molds are bad seeds-
- Stachybotrys, Aspergillis, Saddam Husseinillis
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- What is a mold?
- Beer– just making sure you understand the benefits of fungi.
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- What is a mildew?
- Mildew is Fungi
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- What is a mildew?
- "What is mildew?" The answer depends on whether you ask a
scientist or a non-expert. Mycologists, who study fungi, use the term
"mildew" only for fungi that grow on plants. When mycologists
say "Mildew," they mean the white growth that causes diseases
in plants.
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- What is a mildew?
- People who are not scientists use the term "mildew"
differently. For them, mildew is the discoloration caused by mold in
buildings. The molds that grow around windows or in bathrooms are called
"mildew."
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29
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- What is a mildew?
- Is mildew different than mold? The mycologist would say they are
different. Mildew only grows on plants outdoors. The non-expert,
however, sees the effects of mold growing indoors and calls it
"mildew."
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30
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- That was fecal matter from a spider and not a mold spore.
- Back to our discussion.
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- To be more specific, we should ask, "How long does it take for a
mold spore to germinate?" Then we should ask, "How long does
it take growing mold to colonize?"
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- To grow, molds need a food source, a certain temperature and moisture.
Where these conditions are present, molds can germinate and colonize.
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- How fast growth occurs depends on the combination of conditions. Spores
can germinate after only 12 hours in some conditions and some germinate
in 24 to 48 hours.
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- Houses offer an ample food supply—drywall, wood, insulation, paper. When
these materials become damp or wet, settled spores can become growing
molds.
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- Molds may colonize in 1 to 12 days depending on the type of mold.
Following are several types of molds and the number of days in which
colonization may take place:
- Mucor sp. colonizes between 1 and 2 days.
- Rhizopus sp. colonizes between 1 and 2 days.
- Aspergillus sp. colonizes between 2 and 3 days.
- Penicillium sp. colonizes between 2 and 3 days.
- Stachybotrys chartarum colonizes between 8 and 12 days.
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- Reservoirs for spores:
- Carpet, furniture, upholstery, surfaces such as walls, ceilings and
window sills
- Controlled damp surfaces such as shower curtains, air conditioning
components.
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- Factors effecting growth
- Temperature – most mesophilic
- Light – dark areas usually mean moistness (once thought that spores
loved darkness)
- pH – most like slight acidic environment
- Food – Not Pizza and Bud Light like once thought.
- H2O, Water, Clear gold, etc, etc.
BIG ONE HERE. We will
discuss later.
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- FUNGI: How do we identify
Fungi? Well
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40
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- FUNGI:
- WILL NOT Carry a driver’s license.
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- FUNGI:
- WILL NOT Carry a driver’s license.
- WILL NOT Answer questions without a lawyer present.
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- FUNGI:
- WILL NOT Carry a driver’s license.
- WILL NOT Answer questions without a lawyer present.
- WILL NOT Come out without a fight.
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- FUNGI:
- WILL NOT Carry a driver’s license.
- WILL NOT Answer questions without a lawyer present.
- WILL NOT Come out without a fight.
- Will pretend to be beer making yeast.
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44
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45
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- FUNGI: The official word is…
- The Centers for Disease Control and the Environmental Protection Agency
say that some of the most extreme health risks of mold, such as brain
damage and memory loss, have not yet been proven.
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46
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- FUNGI:
- BUT…Since January 1993, there have been 44 cases of unexplained
pulmonary hemorrhage in Cleveland, and 140 nationwide. In all but two of
the 29 cases, stachybotrys mold has been documented in the homes.
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- On the other hand though.
- Smoking family members may have skewed the results due to heavy smoking
inside the home.
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48
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- Why are there no standards for mold exposure?
- Health hazards from exposure to environmental molds and their
metabolites relate to four broad categories of chemical/biological
attributes. These materials may be: 1) irritants, 2) allergens, 3)
toxins, and rarely 4) pathogens.
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- Why are there no standards for mold exposure?
- Different mold species may be more or less hazardous with respect to any
or all of these categories. However, risks from exposure to a particular
mold species may vary depending on a number of factors. Uncertainty is
complicated further by a lack of information on specific human responses
to well-defined mold contaminant exposures.
- Confounding factors and not enough research.
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50
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- The next slide brings us to our second mental break.
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51
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- Another break
- Hint. When you run over a parking
meter with your city car, don’t bring it back to the office and ride it
like a horse with the Director in the same room. Oh and take the batteries out of the
digital camera.
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- So what do we do as health professionals concerning possible mold
contamination and adverse health effects in citizen’s homes?
- Well, I have always used the inclusive method that all mold in the home
should be treated as hostile. WHY
though?
- It’s all in the indication.
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53
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- Let’s move on to sampling.
- What is the general rule of sampling?
- DON’T DO IT
- WHY?
- What is Canton’s policy.
- What I always tell the complainant is..
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54
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- There are three stages to the IAQ investigation.
- Initial Stage
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55
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- There are three stages to the IAQ investigation.
- Initial Stage
- Sampling Stage
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56
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- There are three stages to the IAQ investigation.
- Initial Stage
- Sampling Stage
- Follow-up Stage
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- The initial stage is used to gather information.
- Visual inspection of:
- Complaint area, surrounding areas and ventilation system
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- A questionnaire is distributed to occupants. (Health Dept.)
- The questionnaire is analyzed. (Health Dept.)
- Formulation of hypothesis (Health Dept.)
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- If sampling is done then it must be done by the health department or
other qualified, trained, certified professional. The major issue here is sample
integrity.
- Sampling will let us know what, how much, who’s dating whom…..etc. But it does not tell us if it is
causing a problem or not.
- METHODS USED..
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- Follow-up done by the health department and the abatement contractor.
- This section is covered by funGUS
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- Some current scams
- Insurance Adjuster Scammers
- Ozone generators
- House Cooking
- Fraudulent mold testing
- Mold remediation shortcuts
- Websites claiming they have the knowledge and suddenly suggest that
chlorine can’t do the job but their product will.
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62
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- There is no relationship between “fungus” and a Fun Gus
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63
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- Trichome Constituents of Calamintha ashei
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- Everybody is exposed to molds on a daily basis
- Some molds taste delicious
- Some molds are toxic
- Use common sense…don’t taste the mold to find out
- Dead or alive…still potentially dangerous
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- Inhalation – Respiratory system
- Dermal – Skin
- Ingestion – GI
- Injection – cuts, punctures
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- Acute
- 1-time
- Chronic
- Repeated
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- Microbial volatile organic compounds:
- Body odor generated by live mold-depends on what they eat
- Odors- “earthy”, “weedy”, “musty”, “nutty”
- Good indicator that you have a mold problem
- Currently being researched
- Olfactory and nervous system stimulus
- Irritation, discomfort, nausea, vomiting, runny nose
- Psychosomatic
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- Mycotoxins
- Secondary chemical products
- Produced as a defense mechanism
- Induced by environment- not always produced- why…we do not know
- Most are cytotoxic
- Humans are not the targets…but we are a large group of organized cells
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- Mold concentrations are increased
- Exposure time is increased
- A person is hypersensitive
- A person has a compromised immune system
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- No adverse effects
- Allergic reactions and or irritation
- Organic dust toxic syndrome
- Hypersensitivity pneumonitis
- System specific toxicity
- Cancer
- Death
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- Hay Fever like symptoms
- Coughing, fatigue, runny nose, congestion, sneezing, difficult
breathing, headaches, nausea and vomiting.
- Burning or itching sensation in the eyes, nose, throat, skin and lungs.
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- Precautions should ALWAYS be taken when mold levels are elevated above
outdoor levels.
- When mold is disturbed the risk of exposure is increased.
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- Respirator
- Goggles
- Rubber Gloves
- Protective Clothing
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- Minimum : N-95 Respirator which filters 95% of particulates
- Limited : Full or half face air purifying respirator with HEPA filter
- Full: Full face powered air
purifying respirator with a HEPA filter
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- Eye protection that prevents the molds and particulates from getting
into eyes.
- Full face respirators
- (GOGGLES)
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- Regular household rubber gloves
- The use of biocide requires gloves made of natural rubber, polyurethane,
neoprene, nitrile or PVC
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- Limited: disposable paper overalls
- Full: Overalls made of breathable
material such as TVEK, feet coverings
- Use duct tape to seal off at wrists and ankles
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- Are other people in the building?
- What is the extent of mold contamination?
- What kind of barrier system erected?
- Does the containment area need to be under negative pressure?
- Do not forget to shutoff or seal HVAC system.
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- Recommended for mold areas that are 10-100 squared feet
- Single layer of 6 mil, fire retardant polyethylene sheeting
- Isolate HVAC system
- Maintain enclosure under negative pressure during cleanup.
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- Recommended for greater than 100 SQ ft.
- Double layer of 6 mil, fire retardant polyethylene sheeting
- Decontamination chamber/airlock at entry
- Isolate HVAC system
- Maintain enclosure under negative pressure during cleanup.
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- Fix the water problem…or all is lost
- Double bag and seal contaminated materials
- Clean with detergent and water
- Vacuum with HEPA
- Use biocides when necessary.
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