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The amount of moisture available on a surface that mold can use to support growth is known as
the... ✔Correct Answer-water activity
How do molds replicate? ✔Correct Answer-Sporulation
What molds produce respirable particles? ✔Correct Answer-Aspergillus, penicillium
Respirable ✔Correct Answer-Can be deeply inhaled into lungs; 5 microns
4 common viruses found in sewage ✔Correct Answer-rotavirus, GI virus, adenovirus, hepatitis
Name 3 primary sewage biohazards ✔Correct Answer-virus, bacteria, parasites
3 secondary sewage biohazards ✔Correct Answer-endotoxins/exotoxins, mycotoxins, mold
4 common gram negative bacteria found in sewage ✔Correct Answer-e. coli, salmonella, shigella,
psuedomonas
Pathogenic ✔Correct Answer-disease causing
MC that can support mold growth ✔Correct Answer-16
MC that can support wood decaying fungi ✔Correct Answer-20
What federal agency governs indoor air quality? ✔Correct Answer-none
What factors affect mold growth? ✔Correct Answer-temperature, light, water, oxygen, pH,
nutrients/food source
What is the nutrient that mold grows best on? ✔Correct Answer-Cellulose
Define ERH ✔Correct Answer-equilibrium relative humidity (moisture at the surface)
Example of hydrophilic mold ✔Correct Answer-stachybotrys chartarum
Example of mesophilic mold ✔Correct Answer-aspergillus & penicillium
Example of xerophilic mold ✔Correct Answer-aspergillus & penicillium
4 ways to be exposed to bioaerosols ✔Correct Answer-ingestion; cut/puncture/injection; dermal;
inhalation
How do viruses replicate? ✔Correct Answer-injection of RNA into live host cell
What is the common route of entry for mold exposure? ✔Correct Answer-inhalation
, What is the common route of entry for exposure to category 3 water? ✔Correct Answer-ingestion
What does MVOC stand for? ✔Correct Answer-microbial volatile organic compounds
What are MVOCs? ✔Correct Answer-odor (gaseous waste by-products) released by actively
growing molds
3 sources for MVOCs ✔Correct Answer-reactivated pet urine, wet building materials, bacteria
The presence of MVOCs can be an indicator of: ✔Correct Answer-unacceptable indoor air quality,
active microbial growth, incomplete remediation
What is a micron? ✔Correct Answer-unit of measurement equal to 1/1,000,000 meters
What is the definition of viable? ✔Correct Answer-able to reproduce (germinate)
What is the definition of non-viable? ✔Correct Answer-not capable of germination
What is the definition of settled spores? ✔Correct Answer-spores landed on surface but not
actively growing
What is the definition of mycotoxins? ✔Correct Answer-toxigenic compound produced by molds
under certain conditions
Why do molds produce mycotoxins? ✔Correct Answer-defense mechanism
What is the carcinogenic mycotoxin produced by aspergillus? ✔Correct Answer-aflotoxin
What are the immunizations that water and mold technicians are recommended to have?
✔Correct Answer-hepatitis a&b, tetanus
What is the time frame for stachybotrys to colonize? ✔Correct Answer-7-12 days
What is the time frame for aspergillus to colonize? ✔Correct Answer-48-72 hours
What is the size of most mold spores found in indoor water damaged environments? ✔Correct
Answer-2-20 microns
What are the molds associated with bird & bat droppings? ✔Correct Answer-histoplasma
capsulatum, Cryptococcus neoformans
What are the 4 populations of individuals that are considered to be at a higher risk for exposure to
mold & bacteria? ✔Correct Answer-elderly, children, pregnant women, immuno-compromised
Why should initial sampling be conducted? ✔Correct Answer-remediation work plan, reduction of
false claims, identify condition 2 environments
Why is post-remediation sampling conducted? ✔Correct Answer-verify effectiveness of
remediation, re-occupancy, resolve liability