An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Decon Query Tool Information Categories – Definitions

Term Definition
Analyte The radionuclide which was tested during research.
Applicability to Irregular Surfaces Potential application of the technology to irregular surfaces such as jagged edges, hard to reach locations, and crevices.
Cost The cost of the decontamination technology as cost per volume ($/L) and its corresponding cost per area ($/m2).  Labor costs are not part of this information.
Decontamination Cycles The number of times the decontamination technology was applied to the contaminated material.
Decontamination Rate A calculated rate determined by the amount of time used to apply and remove the decontamination technology from a specified number of coupon surfaces, reported as surface area per hour (m2/hour). Dwell/dry time is not included in this calculation.
Decontamination Technology The name of the chosen technology.
Decontamination Time The total amount of time used for the decontamination process.  Includes application, dwell/dry, and removal times.
Description An overview description of the chosen technology.
Dwell/Dry Time The amount of time used for contact between the decontamination technology and the contaminated material.
EPA Technology Evaluation Report Title of and link to the research report where more details can be found about the information provided.
Equipment Needs Equipment which will be needed to use the technology.
Material The type of material which was tested during research.
Portability Limiting factors which could be encountered when using the decontamination technology in the field.
% Removal

The percentage of radioactive material removed from the tested coupons, calculated using the following equation: %R = (1-Af/Ao) × 100% where Ao is the radiological activity before application of the decontamination technologies, and Af is radiological activity after removal.

Removal Technique or tools used to remove the decontamination technology from the contaminated surface.
Secondary Waste The amount of waste that will be generated using the decontamination technology and any special precautions for its disposal.
Shelf Life The length of time the decontamination technology can be stored before it expires, as well as exposure considerations that might impact its effectiveness.
Skilled Labor Requirement Training requirements for personnel who will be using the decontamination technology in the field.
Surface Damage Information about any material surface damage caused by the decontamination technology.
Surface Deployment Information on how the decontamination technology is designed to be applied. Includes information about adherence to vertical surfaces and precautions that could affect decontamination.
Technology Preparation Time needed to prepare the decontamination technology for use.
Testing Conditions and Application The amount of time used to prepare the decontamination technology, the technology application technique used, and the estimated volumes of the technology used on the tested coupons.
Utilities Requirement Utilities, such as electricity or water that will be needed in the field to use the decontamination technology.

Top of Page