The status and quality of radiation measurements for air
Environmental Protection Agency, Office of Research and Development, Environmental Monitoring and Support Laboratory, 1977 - Air - 32 pages
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500 600 CONCENTRATION 600 CONCENTRATION pCi/filter 90Sr Gross Alpha Alpha Gross Beta analysis is biased AQCS Report Stat-1 Cesium-137 HH CONTROL Column control chart CROSS-CHECK PROGRAM DEVIATION FROM KNOWN eight studies Environmental Monitoring Environmental Protection Agency EXPECTED LABORATORY PRECISION expected precision EXPERIMENTAL SIGMA Figure 4 continued grand average values Gross Alpha Gross HH CONTROL LIMIT Histogram of Laboratory intercomparison studies JUNE known value laboratories reported results Laboratory Averages Reported laboratory is considered Laboratory performance studies limits for accuracy Monitoring and Support Normalized deviation Normalized range value OCTOBER OUTLIER DECEMBER 1975 OUTLIER FEBRUARY 1975 OUTLIER JULY 1973 participating laboratories pCi/liter percent reported replicate Quality Assurance Branch Quality Control RADIATION MEASUREMENTS Radioassay Reported for Cesium-137 Reported for Gross Reported for Strontium-90 reported replicate results s(pCi/filter SEPTEMBER 1975 standard deviation standard error Support Laboratory Support Laboratory-Las Vegas Techniques for Quality TRITIUM IN URINE U.S. Environmental Protection versus the month x(pCl/filter y(pCi/fllter
Page i - FOREWORD Protection of the environment requires effective regulatory actions which are based on sound technical and scientific information. This information must include the quantitative description and linking of pollutant sources, transport mechanisms, interactions, and resulting effects on man and his environment. Because of the complexities involved, assessment of specific pollutants in the environment requires a total systems approach which transcends the media of air, water and land. The Environmental...
Page ii - This information must include the quantitative description and linking of pollutant sources, transport mechanisms, interactions, and resulting effects on man and his environment. Because of the complexities involved, assessment of specific pollutants in the environment requires a total systems approach which transcends the media of air, water, and land.
Page ii - ... transcends the media of air, water, and land. The Environmental Monitoring and Support Laboratory-Las Vegas contributes to the formation and enhancement of a sound monitoring data base for exposure assessment through programs designed to: • develop and optimize systems and strategies for monitoring pollutants and their impact on the environment • demonstrate new monitoring systems and technologies by applying them to fulfill special monitoring needs of the Agency's operating programs This...
Page 34 - Smiecinski 8. PERFORMING ORGANIZATION REPORT NO. 9. PERFORMING ORGANIZATION NAME AND ADDRESS Environmental Monitoring and Support Laboratory Office of Research and Development US Environmental Protection Agency Las Vegas, Nevada 89114 10.
Page 34 - TECHNICAL REPORT DATA (Please read Instructions on the reverse before completing) 1. REPORT NO.
Page iii - As part of the radiation quality assurance program conducted by the US Environmental Protection Agency, calibrated radionuclide solutions are distributed to participating laboratories for instrument calibration and yield determinations. Laboratory performance studies involving the analysis of radionuclides in environmental media are also conducted. A summary is given of the results of the air filter cross-check program for 1973-1975. Examination of these results indicate that gross alpha is the least...
Page 34 - ... 17. KEY WORDS AND DOCUMENT ANALYSIS DESCRIPTORS b.lDENTIFIERS/OPEN ENDED TERMS c. COSATI Field/Group Microorganisms Bacteria Refuse Disposal Viruses Wastes Manure Compost Incineration Landfill Sampling 13B 13. DISTRIBUTION STATEMENT Release to Public 19. SECURITY CLASS (This Report) Unclassified 21.