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