Results 51 to 60 of about 727 (180)
Outdoor radon and thoron in an area with naturally ventilating bedrock fractures
Frontiers in Environmental ScienceOpen fractures lead to increased permeability of the bedrock, and, if connected to the surface, allow for groundwater flow and air ventilation. Radon and thoron received by groundwater and ventilating air from bedrock can then be released at the surface.
Hallvard Haanes +3 more
doaj +1 more source
Особенности сезонной динамики изотопов радона в приземной атмосфере
Vestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2020 Исследованы особенности временной динамики изотопов радона и дочерних продуктов их распада для климатических условий Сибири (Российская Федерация). Анализ результатов выявил специфическую сезонную динамику радона: максимальное значение наблюдается зимой,
Яковлев, Г.А. +1 more
doaj +1 more source
CvdN Equilibrium and Share Equilibrium in Local Public Good Economies
Journal of Public Economic Theory, Volume 27, Issue 2, April 2025.ABSTRACT CvdN equilibrium and share equilibrium are both extensions of the cost‐shares‐based ratio equilibrium for global public good economies to local public good economies. CvdN equilibrium and share equilibrium differ in terms of the stability requirements for equilibrium jurisdictions.
Nathan W. Chan, Anne van den Nouweland
wiley +1 more source
Radiation Protection and Environment, 2018 In the present study, Radon (222Rn) and Thoron (220Rn) concentration have been measured in the Bangalore University Campus using RAD7 during the postmonsoon season. The results reveal that 222Rn concentration ranged from 360 ± 146 to 643 ± 196 Bq/m3 with
M B Karthik Kumar +3 more
doaj +1 more source
A Device for Measurement of Thoron in the Breath
Health Physics, 1963 A device was developed to measure thoron in the breath of human subjects. It depends upon the adsorption of thoron on a cooled, charcoal particle covered plate which is adjacent to a ZnS coated lucite disc seen by a 5-in.-dia. photomultiplier tube. In its present form it will measure thoron referred to the patient's mouth with a sensitivity of 0.7 ...
J B, HURSH, A, LOVAAS
openaire +4 more sources
Indoor Air, Volume 2025, Issue 1, 2025.Exposure to radon‐222 (222Rn) and its decay products poses a significant public health risk. 222Rn tends to accumulate in poorly ventilated areas, underground spaces, and caves, which justifies the existence of international reference levels for its annual average indoor concentrations.
Grzegorz Oloś +2 more
wiley +1 more source
Радиационная гигиенаThe paper (in two parts) presents an overview of the new guidelines MR 2.6.1.0333-23 (approved on 01 December 2023) that supersede guidelines MU 2.6.1.2838-11, which were used for organizing radiation surveys of residential, public and industrial ...
D. V. Kononenko +3 more
doaj +1 more source
Measurement of radon and thoron concentrations of soil- gas in Al-Kufa city using RAD-7 detector
Iraqi Journal of Physics, 2021 This work represents the set of measurements of radon and thoron concentrations levels of soil-gas in Al-Kufa city in Iraq using electric Radon meter (RAD-7). Radon and thoron concentration were measured in soil-gas in 20 location for three depth of (50,
Ali A. Al-Hamidawi
doaj
Radiation Protection and Environment, 2018 The major contribution of natural background radiation exposure comes from radon, thoron, and their progeny. The activity concentration of these radionuclides depends on various factors, and the concentration level varies from place to place.
K Nadira Mahamood, V Prakash
doaj +1 more source
Exploring Seasonal Variation of Indoor Radon in Campania: Preliminary Findings
Indoor Air, Volume 2025, Issue 1, 2025.This study focuses on the indoor radon gas monitoring in 30 residences in Campania to evaluate seasonal variability. Approximately 570 CR‐39 solid‐state detectors were employed. Measurements were taken monthly, quarterly, semiannually, and annually, starting in October 2022 and ending in September 2023.
Filomena Loffredo +3 more
wiley +1 more source