منابع مشابه
Distribution of airborne radon-222 concentrations in U.S. homes.
Apparently large exposures of the general public to the radioactive decay products of radon-222 present in indoor air have led to systematical appraisal of monitoring data from U.S. single-family homes; several ways of aggregating data were used that take into account differences in sample selection and season of measurements. The resulting distribution of annual-average radon-222 concentration...
متن کاملPredictability of radon airborne measurements based on surrogate measures
This research focuses on the evaluation of temporal and spatial variability associated with radon airborne measurements and the predictive utility of surrogate measures to estimate radon concentrations within the same environment as well as in other environments. This dissertation consists of three components. In Chapter II, “Evaluation of agreement of time-integrated basement residential radon...
متن کاملAssessment of airborne radon daughter concentrations in dwellings in Great Britain.
Calculations of the activity concentration of RaA (218Po) in the air within living rooms and in the outside air were made at 87 dwellings in England and Scotland. From these measurements together with a determination of the ventilation rate existing in the room at the time of the measurements, the rate at which 222Rn is emanating from room surfaces into room air in pCil-1 h-1, can be calculated...
متن کاملLong-term determination of airborne radon progeny concentrations using LR 115 solid-state nuclear track detectors
This paper described the establishment of lognormal distributions for the Jacobi room model parameters with a view to improve an existing method for long-term passive measurements of the equilibrium factor using LR 115 solid-state nuclear track detectors, namely, through the proxy equilibrium factor (Fp) method. Fp is defined as (C1 þ C3)/C0 where C0, C1 and C3 are the concentrations of 222Rn, ...
متن کاملIn Situ Airborne Radon Monitoring for Standards Compliance with Osha-nrc-epa
In situ radon monitoring is necessary to characterize and qualify workplace and other environments in order to determine the need for occupational exposure assessments, to demonstrate compliance with standards and to verify the effectiveness of mitigation efforts. A web-based, energy sensitive electrostatic chamber radon monitoring system, developed at the University of Guelph, can be used to a...
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ژورنال
عنوان ژورنال: Journal of the Japan society of photogrammetry and remote sensing
سال: 1994
ISSN: 0285-5844,1883-9061
DOI: 10.4287/jsprs.33.4_32