Chapter 10 Flashcards
(27 cards)
Technical decontamination
A plan in systematic process of reducing contamination to a level that is as low as reasonably achievable
It is aimed at reducing or eliminating contamination from responder PPE prior to removing it
One of the ultimate goals of decontamination is to
Reduce the likelihood of secondary contamination
The person at the beginning of the decontamination corridor is the;
Greeter
The washer is commonly positioned _____ where responders under the sequence of ______
Adjacent to the black catch basins for water; having their PPE scrubbed and rinsed with water
The bagger is located:
Toward the cold zone end of the decontamination corridor
Site safety and control plan
A site-specific safety document used within the ICS to organize information important to hazardous material response operations
Dry decontamination is accomplished by:
Removing all PPE and placing it directly into bags for disposal
Physical methods of technical decontamination involve:
The actual removal of contaminant particles from the surfaces of responders and equipment
Absorption
The process of applying a material that soaks up and holds a hazardous material in a spongelike manner, so as to collect the hazardous material for subsequent disposal
(Natural soil, sawdust)
Adsorption
The process of applying a material, such as silica or activated carbon, whose surface a hazardous material adhere to, so as to collect the hazardous material for subsequent disposal
(Sand, silica, activated carbon)
Chemical degradation
A natural or artificial process that causes the breakdown of a chemical substance
Dilution
The process of adding a substance, usually water, to weaken the concentration of another substance
Disinfection
The process of inactivating virtually all recognized pathogenic microorganisms, but not necessarily all microbial forms, such as bacterial endospores
Evaporation
In natural form of chemical degradation during which a liquid material becomes a gas and dissipates
It is sometimes used as a safe, non-invasive way to allow a chemical substance to stabilize without human intervention
Isolation and disposal
It used step removal process for items that cannot be properly decontaminated; the first step is to remove the contaminated article and isolate it in a designated area, and the second step is to package it in a suitable container and transport it to an approved facility, where it is either incinerated or buried in a hazardous waste landfill
Neutralization
The process of reducing the proximity of an acid or a base by altering the pH of the material with a chemical reaction
A strong acid is neutralized by adding a weak base
A strong base is neutralized by adding a weak acid
Solidification
The chemical process that transforms a liquid material into a solid material
Sterilization
A physical or chemical procedure that destroys all microbial life, including highly resistant bacterial endospores
Mostly used for biological agents
Vacuuming
The process of removing dust, particles, and some liquids by sucking them into a container with a high-efficiency particulate air (HEPA) filtration to prevent contamination of the environment
Washing
The process of dousing contaminated victims with a soap-and-water solution and then rinsing them with water
The wash-rinse cycle can be repeated as many times as necessary until the item is free of contamination
The decontamination corridor should be set up and staffed ______
Prior to the entry team making access and going to work in the hot zone
The level of PPE worn by the decontamination team is typically
Not less than one level below what the entry team is wearing
Technical decontamination typically involves ______ wash-and-rinse stations
1 to 3
Only ___ contaminated responder is allowed in a wash-and-rinse station at a time
One
