Quantitative Evaluation of Contamination Consequences (QECC)
The goal of the Quantitative Evaluation of Contamination Consequences (QECC) project
is to quantitatively relate workplace surface and airborne contamination levels, both radioactive and chemical,
to intakes and doses.
QECC is supported by the U.S.
Department of Energy (DOE). QECC is part of the Environment, Safety, and Health Systems product line at PNNL.
Objectives of the project are to
- quantify available information that relates surface and volume contamination of equipment and materials to intakes, and therefore, health risks to workers, and
- quantify how well air sampling predicts worker intakes and what factors improve or degrade the usefulness of air sampling to manage worker risks.
- Overview of QECC slide show.
- Project Summary
- Background
- Outcome Measures
- Computer Modeling Codes for Chemical and Radiological Releases
- Uses
of ANSI/HPS N13.12-1999, "Surface and Volume Radioactivity Standards for Clearance"and Comparison
with Existing Standards. The objectives of this report are:
- to identify potential uses for the standard above and beyond those in the standard itself
- to make recommendations concerning these potential uses.
- 21 November 2006: The Lognormal Fitting Utility software can be downloaded to analyze uncensored or left censored data.
- LOGNORM4 is copyrighted freeware that extracts the parameters of a lognormal distribution from minimal summary data. It runs under DOS, Windows 95, and Windows 98.
- Talk presented at AMUG (The DOE Air Monitoring Users Group) at Savannah River Site, South Carolina on April 22, 1998.
- Slides presented at Health Physics Society Midyear Meeting at Alburquerque, New Mexico on January 27, 1999.
- Revised paper presented at Health Physics Society Midyear Meeting at Alburquerque, New Mexico on January 27, 1999.
- Talk presented at DOE 1999 Data Analysis Forum aponsored by the office of Environment, Safety and Health, Office of Operating Experience Analysis and Feedback, January 26-28, 1999, Las Vegas, Nevada.
- Index of Radioactive Sealed Sources and Devices
by Manufacturer and Model Number
Wipe test, resuspension, and surface contamination references. - AIHA Laboratory Safety Incidents provides insight on chemical contamination.
- ORPS, the DOE Occurrence Reporting and Processing System
- Technical Letter Report: Task 7, Final Review of the 1987 Report by Oak Ridge Associated Universities, "Improper Transfer/disposal Scenarios for Generally Licensed Devices" by D.J. Strom, R.L. Hill, J.S. Dukelow, and G.R. Cicotte. PNNL-11905. Richland, Washington: Pacific Northwest Laboratory, June 3, 1994. This document was the foundation for the QECC concept, and contains two outcome measures that are found in QECC: time-and-proximity factor, and fraction-taken-in.
Search the QECC web site:
For more information contact:
Daniel J. Strom, Ph.D., CHP(Visit Dan's home page, or send Dan an eMail message now) Radiological Sciences and Engineering Environmental Technology Directorate Pacific Northwest National Laboratory Battelle Boulevard, PO Box 999, Richland, Washington 99352-0999 USA Telephone: (509) 375-2626 FAX: (509) 375-2019
Contact:
Dan StromRead about: Security & Privacy
PNNL-SA-30139, Revised: 2007 October 23