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A method to automate radiological surveys: the Ultrasonic Ranging and Data System.
Operational experience indicates that the USRADS system results in collection of greater quantity and higher quality of radiological data with less effort in data transcription and analysis and only slightly more field effort compared to conventional manual methods.
Evaluation of uncertainties in radioecological models. [Statistical analysis of selected input parameters to determine source of uncertainties]
Compliance with current environmental radiological standards promulgated to limit routine releases from nuclear facilities is usually determined through the use of mathematical models which are…
Results of the survey activities and mobile gamma scanning in Monticello, Utah
The town of Monticello, Utah, was once the site of an active mill which processed vanadium ore (1942 to 1948), and uranium ore (1948 to 1960). Properties in the vicinity of that mill have become…
Relevance of plasmid pKM101-mediated mutagenicity in bacteria to genotoxicity in mammalian cells.
Three structurally related compounds gave positive dose-related mutagenic responses in the Ames test when Salmonella typhimurium strain TA100 was used as the test organism, and data showing plasmid pK101-dependent mutagenesis are therefore, at least for these compounds, relevant indicators of eukaryotic genotoxicity.
Plutonium in a grassland ecosystem at Rocky Flats
Portions of the grassland around the Rocky Flats installation of the US Department of Energy, located about 12 km northwest of the Denver metropolitan area, were contaminated with Pu between 1959 and…
Studies of error-prone DNA repair in Escherichia coli K-12 and Ames Salmonella typhimurium strains using a model alkylating agent.
4-Acetoxy-3-acetoxymethyl acetophenone (AAMAP) is mutagenic in Ames Salmonella typhimurium tester strains TA100 and TA98, which carry plasmid pKM101, but not in the isogenic plasmid-less strains…
Plasmid pGW16, a derivative of pKM101, increases post-UV DNA synthesis, but sensitises some strains of Escherichia coli to UV.
UV PROTECTION PRODUCED BY PLASMID pGW16 IN ESCHERICHIA COLI IS STRAIN DEPENDENT
Uncertainty associated with selected environmental transport models
A description is given of the capabilities of several models to predict accurately either pollutant concentrations in environmental media or radiological dose to human organs. The models are…