3 factors that should be considered when choosing a biocide - (ANSWER)1. Type and extent of
contamination
2. Limitations
3. Hazards
6 limitations of all antimicrobial biocides - (ANSWER)1. Concentration
2. Temperature
3. pH
4. Inactivated by organic matter
5. Contact time
6. Dwell Time
three types of antimicrobial biocides - (ANSWER)1. Disinfectants
2. Sanitizers
3. Sterilants
Product is referred to as a "bound product" - (ANSWER)Antimicrobial Agent
types of antimicrobial agents - (ANSWER)1. Bacteriostat
2. Fungistat
Biocide - (ANSWER)A chemical or physical agent that is designed to kill or inactivate one or more
group of microorganisms
Antimicrobial - (ANSWER)An agent that is incorporated or applied to a product or surface to inhibit
microbial growth
,Sanitizer - (ANSWER)A biocide that significantly reduces the number of vegetative environmental
bacteria of public health importance
Disinfectant - (ANSWER)A biocide that significantly reduces or kills up to 99.99% of recognized human
pathogens and may kill some bacterial spores
Sterilant - (ANSWER)A biocide that can completely kill or inactivate significant challenges of resistant
bacterial spores
Fungistat - (ANSWER)A product that suppresses fungal growth
Bacteriostat - (ANSWER)A product that suppresses bacterial growth
Ozone - (ANSWER)A gaseous phase biocide that is toxic to humans and is not recommended for
microbial remediation
UV Light - (ANSWER)Used inside HVAC ducts, crowded waiting rooms, airlocks and laboratories in an
effort to control infectious agents
Why should initial sampling be conducted? - (ANSWER)1. Determine scope
2. Protect the contractor
3. I.D. areas that may be impacted with settled spores
Why is post remediation sampling conducted? - (ANSWER)1. Verify successful remediation
2. Re-occupancy
3. Liability
What is the air sample of choice for verification and why? - (ANSWER)Spore traps because they are
quick and provide the total microbial load
benefit of collecting a viable air sample - (ANSWER)The cultures can speciated
,4 common types of surface samples - (ANSWER)1. Bulk
2. Swab
3. Contact plate
4. Tape
requirements for an IEP - (ANSWER)Certification, education, training, and experience
requirements for reading samples - (ANSWER)Education, special training, and extensive experience
water activity - (ANSWER)The amount of moisture available on a surface that mold can use to support
growth
3 primary sewage biohazards - (ANSWER)1. Bacteria
2. Parasites
3. Viruses
3 secondary sewage biohazards - (ANSWER)1. endotoxins
2. fungi
3. mycotoxins
4 common sewage viruses - (ANSWER)1. rotavirus
2. hepatitis
3. adenovirus
4. G.I. virus
Pathogenic - (ANSWER)Disease causing
Carcinogenic - (ANSWER)Potential to cause cancer
, Who governs indoor air quality? - (ANSWER)No one
Hydrophobic - (ANSWER)Does not like water
example of a hydrophilic mold - (ANSWER)Stachybotrys
example of xerophilic mold - (ANSWER)Aspergillus and Penicillium
Sporulation - (ANSWER)The point in a fungal organism life cycle that it begins to produce and release
spores
Mold that can colonize in 48-72 hours under ideal conditions - (ANSWER)Aspergillus and Penicillium
Mold that can colonize in 7-12 days under ideal conditions - (ANSWER)Stachybotrys
factors that affect mold growth - (ANSWER)1. Temperature
2. Oxygen
3. PH
4. Nutrients
5. Moisture
6. Light
nutrient that mold grows best on - (ANSWER)Cellulose
ERH - (ANSWER)The relative humidity take at the surface
water activity Hydrophilic molds prefer - (ANSWER)>0.90