AMRT Review
What is the desired lower pressure to achieve and maintain inside the containment chamber?
-5.0 pa or -.02wc
P1 disposable suits hold out _______% of dry particulate whereas a P2/P3 holds out ________% of dry particulate.
1. 90% 2. 100%
What are the 5 principals of mold remediation stated in the S520? (introduction)
1. Provide for the Health and Safety 2. Document the Conditions and Work Processes 3. Control the Contaminant 4. Physically Remove the Contamination 5. Correct the Moisture Problem
What is a micron?
1/1,000,000 of a meter
The protection factor for a half-face respirator is?
10
What is the Moisture Content that can support mold growth?
16%
What is the size of most mold spores found in indoor water damaged environments?
2-20 Microns
What is the MC that can support wood decaying fungi?
20%
When the oxygen exceeds _______% it creates an oxygen- enriched environment.
23.5%
How often should the pre-filters be changed on an AFD?
3-4 PER DAY DURING REMOVAL, 1 PER DAY DURING CLEANING
What is the time frame for aspergillus to colonize?
48-72 Hours
The protection factor for a full-face respirator is?
50
What size of mold spores should a good secondary filter remove?
60% @ 1 Micron
What is the time frame for stachybotrys to colonize?
7-12 Days
What is the efficiency of a HEPA filter and what do the letters stand for?
99.97% @ .3 Microns and High Efficiency Particulate Air Filter
What is the carcinogenic mycotoxin produced by aspergillus?
AFLATOXINS
What is the sample method of choice for verification and why?
AIR SAMPLES, INDICATOR FOR FURTHER INVESTIGATION
What tool can be used to check the CFM of the AFD?
ANEMOMETER
What is the procedural guideline that the remediator should follow?
ANSI/IICRC S500 - S520
What is the definition of viable?
Ability to Germinate
What is the ultimate criteria for clearance of a microbial remediation project?
Ability to re-occupy without complaint
What is the concern with not wearing PPE?
Acquiring an illness
When should an antimicrobial biocide be applied to sewage contaminated building materials?
After Removal, and a Thorough Cleaning
When can the containment and NAM be removed?
After Successful Verification
What molds produce respirable particles?
Aspergillus
What is an example of a Mesophilic mold?
Aspergillus and Penicillium
What is an example of a Xerophilic mold?
Aspergillus and Penicillium
Identify 3 other sources for MVOCs, (musty odors)?
BACTERIA, RE-ACTIVATED URINE, OFF-GASSING WET MATERIALS
What is one cost effective method for remediating a sewage contaminated crawl space?
BIOREMEDIATION UNDER A VENTILATED GROUND COVER
What are the types of antimicrobial static agents?
BIOSTAT, FUGISTAT, BACTERIOSTAT
Define respirable?
CAN BE DEEPLY INHALED INTO THE LUNGS, SMALLER THAN 5 MICRONS
What are the concerns when attaching accessories or ducting to a NAM?
CFM Reductions
Name 6 limitations of antimicrobial biocides
CONCENTRATION, CONTACT TIME, APPLICATION REQUIREMENTS, MATERIAL COMPATIBILITY, TEMPERATURE, PH
What is the definition of complication?
CONDITION THAT ARISES AFTER THE START OF WORK
What should the remediator do when there is a concern of health effects?
CONSULT DOCTOR USE IEP
List the 4 common types of surface samples
CONTACT PLATE, TAPE, BULK, SWAB
What is the recommended procedure for changing the pre-filters on a HEPA filtration device?
CONTROLLED MANNER, WHILE EQ RUNNING, WHILE THE UNIT IS OPERATING
What does the OSHA General Duty Clause state?
CREATE A SAFE WORK ENVIRONMENT AND MONITOR SUCCESS
What is a benefit of collecting a viable air sample?
Can Determine Species
What should the remediation contractor provide on every remediation job rather than relying on the homeowner to provide them?
Carbon Monoxide Detector
What is the nutrient that mold grows best on?
Cellulose
What is the best preventative for mold contamination?
Clean and Well Maintained
How should respirator cartridges be stored and why?
Clean, Dry, Seal. To Prevent Cartridge Breakdown
What is the definition of Condition 2?
Contaminated with Settled Spores
What are the 4 ways we can be exposed to bioaerosols?
DERMAL INHALATION INGESTION INJECTION, CUTS, ABRASIONS
Why should initial sampling be conducted?
DETERMINE WORK PLAN, REDUCTION OF LIABILITY, IDENTIFY CONDITION 2
How is the number of decon/exit chambers for a mold remediation project determined?
DETERMINED BY THE WORK PLAN (JOB AND SITE SPECIFIC)
What is the testing procedure that can be used to check the efficiency of the HEPA filter?
DOP Testing
Define the term Pathogenic?
Disease Causing
What are the 3 types of sewage?
Domestic, Industrial, And Non-Point
What are 4 common gram negative bacteria found in sewage?
E. COLI, SALMONELLA, SHIGELLA, PSUEDOMONAS
What are the 4 populations of individuals that are considered to be at a higher risk for exposure to mold and bacteria?
ELDERLY, CHILDREN, PREGNANT WOMEN, IMMUNOCOMPROMISED
Name the 3 secondary sewage biohazards
ENDOTOXINS, EXOTOXINS, MYCOTOXINS
What is the definition of ERH?
EQUILIBRIUM RELATIVE HUMIDITY, RH AT THE SURFACE & COMPARABLE TO WATER ACTIVITY
What are the recommendations/requirements to be an IEP?
Education, Certifications, Experience
A ____________ should be constructed for entry into and exit from a remediation containment area.
Exit/Decon
What should the remediator do prior to using any tool or equipment?
FOLLOW MANUFACTURER INSTRUCTIONS
What is FIFRA?
Federal Insecticide, Fungicide, and Rodenticide Act/ FEDERAL LAW REGULATED BY STATES OVERSEEING EPA REGISTERED PRODUCTS
What are the risks of using spray adhesive?
Flammable and Toxic
Air flow ALWAYS moves:
From a Higher to a Lower Pressure
What are the immunizations that water and mold technicians are recommended to have?
HEP A, HEP B, TETANUS
What are the molds associated with bird and bat droppings?
HISTOPLASMA CAPSULATUM
What is the procedure used for cleaning remaining surfaces affected by sewage contamination?
HOT WATER LOW PRESSURE FLUSHING 20-60 PSI
What is a risk to the technicians by wearing P3 disposable coveralls?
Heat Exhaustion and Heat Stress
What are the common immunizations for technicians in order to perform sewage cleanup and who should the remediator consult?
Hepa A, Hepa B, Tetanus
How do viruses replicate?
INJECT GENETIC MATERIAL (RNA OR DNA) TURNING LIVE HOST CELL INTO VIRUS FACTORY
What is the result when applying antimicrobials to organic materials?
Inactivated
What is the common route of entry for exposure to category 3 water?
Ingestion
What is the common route of entry for mold exposure?
Inhalation
What are the maintenance steps that must be done to a half or full-face respirator?
Inspect, Clean, Dry, Store
When are air-supplied respirators required?
Insufficient Oxygen, Extreme Temperatures, High Concentration of Dust, Fumes and Mists, And High Concentration of Gases and Vapors
What is the definition of settled spores?
LANDED ON A SURFACE AND NOT ACTIVELY GROWING
What tool can be used to perform the DOP testing?
LASER PARTICULATE COUNTER
Where are the appropriate places to dispose of category 3 water?
Local Laws, Sanitary Sewer, Bulk Waste Truck
What is the slip factor recommended for 6 mil poly and why?
Medium and No oil or Talc
What does MVOC stand for?
Microbial Volatile Organic Compounds
When is local containment used?
Moderate Amount
Which respirators offer NO protection against oxygen deficient environments?
N95, Half Face, Full Face, and PAPR
What should the remediator do when completing an invasive inspection?
NOTIFY CLIENT/ PREVENT ANY ADDITIONAL DAMAGE / PREVENT CROSS CONTAMINATION
A ____________________ air pressure differential between the work area and the surrounding space should be created to prevent contaminants from leaving the work zone.
Negative
Which federal agency governs indoor air quality?
None
What is the definition of Condition 1?
Normal Mold Amount compared to the outdoors
What is the definition of non viable?
Not able to Germinate
What are MVOCs?
ODORS PRODUCED DURING FUNGAL METABOLISM
What does the organic vapor cartridge remove?
Odors and MVOCs
Which respirator offers a positive pressure inside the mask via a battery pack?
PAPR
How is the efficacy of antimicrobials determined?
PREVIOUSLY CLEANED SURFACE
What is the definition of complexity?
PROBLEM FOUND BEFORE WORK BUT CAN STILL BEGIN
Why do molds produce mycotoxins?
PROVIDE COMPETITIVE ADVANTAGE AGAINST OTHER MICROORGANISMS
What does the P100 of the respirator cartridge remove?
Particles (HEPA)
What must the worker do each time they don their respirator?
Positive and Negative Pressure Seal Check
What does the acronym PAPR stand for?
Powered Air Purifying Respirator
What is an invasive inspection?
REMOVAL OF MATERIAL TO FURTHER THE INSPECTION
What is the definition of limitation?
RESTRICTION PLACED BY OTHERS UPON THE REMEDIATOR
What are 4 common viruses found in sewage?
ROTAVIRUS, ADENOVIRUS, GI VIRUS, HEPATITIS
What does OSHA require for a respirator program?
Respirator Selection, Certified Fit Test, Medical Evaluation, Training
What is the last piece of PPE that should be removed, and why?
Respirator... To reduce risk of inhalation exposure
What is the goal for mold remediation?
Return Environment to a Condition 1
What PPE should technicians don when performing a sewage remediation?
Rubber Gloves, Full Face Respirator, Protective Suit, Rubber Boots
What are three types of antimicrobial biocides?
SANITIZERS, DISINFECTANTS, STERILIZE
What is an example of a Hydrophilic mold?
STACHYBOTRYS
What is the order to remove (doff) PPE?
SUIT - GLOVES - RESPIRATOR (if Single Gloves) ... ALSO SUIT OUTER GLOVES - RESPIRATOR - INNER GLOVES (if Double Gloves)
What is the typical sequence of a microbial remediation?
Safety and Health, Inspect, Containment, Negative Pressure, Remove, Clean, Evaluate and Verify
What is the condition the technician is trying to achieve when remediating a sewage loss?
Sanitary
When is full containment used?
Significant Amount
When is source containment used?
Small Amount
What are the 3 types of containments
Source, Local, Full
What are the recommendations/requirements to interpret sample data?
Special Training, and Experience
How do molds replicate?
Sporulation
What product is referred to as a "bound product"?
Static Agent
What are the factors determining the maximum pressure that a containment chamber can be placed under?
Strength, Integrity, Adequate Materials, Size of Nam, and Supplemental Air Filtration
What are the factors that affect mold growth?
TEMPERATURE, LIGHT, PH, NUTRIENTS, OXYGEN, WATER
What is the definition of mycotoxins?
TOXIC SUBSTANCES PRODUCED BY FUNGI, LOCATED IN OR ON THE SPORE CELL WALL
What are the 3 factors that should be considered when choosing an antimicrobial?
TYPE, LIMITATIONS, ASSOCIATED HAZARDS
What is the concern of mixing bleach with ammonia?
Toxic Gas
The presence of MVOCs can be an indicator of?
UNACCEPTABLE INDOOR AIR QUALITY, ACTIVE MICROBIAL GROWTH, INCOMPLETE REMEDIATION
Define pre-existing damage. What is an example?
UNRELATED DAMGES TO THE CURRENT PROJECT, PREVIOUS WATER DAMAGE PREVIOUS STRUCTURAL DAMAGE
Why is post remediation sampling conducted?
VERIFY EFFECTIVENESS, DETERMINE IF AREA CAN BE REOCCUPIED, RESOLVE LIABILITY
Name the 3 primary sewage biohazards
VIRUSES, BACTERIA, PARASITES
What is the definition of Condition 3?
Visible Contamination
What are 3 ways to evaluate negative pressure?
Visual Smoke Pencil or Tube Manometer
The amount of moisture available on a surface that mold can use to support growth is known as the?
Water Activity
What is the clearance criteria for sewage verification?
Zero Pathogens
Why should a technician use a fire retardant polyethylene for containment?
will not raise the fire load