Active measurement methods of indoor radon and thoron in selected spaces in Galati town
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2022-06-08 21:45
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539.17.4:621.039.7 (1)
Nuclear physics. Atomic physics. Molecular physics (86)
Mechanical engineering in general. Nuclear technology. Electrical engineering. Machinery (1715)
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ENE, Antoaneta, VODARICI, Liviu. Active measurement methods of indoor radon and thoron in selected spaces in Galati town. In: Environmental Toxicants in Freshwater and Marine Ecosystems in the Black Sea Basin: BSB27-MONITOX, 8-11 septembrie 2020, Kavala. Kavala, Greece: International Hellenic University,, 2020, pp. 34-35.
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Environmental Toxicants in Freshwater and Marine Ecosystems in the Black Sea Basin 2020
Conferința "Environmental Toxicants in Freshwater and Marine Ecosystems in the Black Sea Basin"
Kavala, Grecia, 8-11 septembrie 2020

Active measurement methods of indoor radon and thoron in selected spaces in Galati town

CZU: 539.17.4:621.039.7

Pag. 34-35

Ene Antoaneta, Vodarici Liviu
 
"Dunarea de Jos" University of Galati
 
Proiecte:
 
Disponibil în IBN: 3 decembrie 2020


Rezumat

The paper presents a review of results obtained in the period 2019-2020 during complex studies performed in the frame of international projects by team of Dunarea de Jos University of Galati, regarding the investigation of indoor radon (222-Rn) and thoron (220-Th) concentrations and their temporal variations in selected dwellings and public spaces in Galati town, SE Romania. For the measurements a Thoron Scout calibrated instrument of SARAD type has been used. The data were processed with the aid of SARAD Radon Vision 6.3.4 software. The variability of radon/thoron levels in a house or public space greatly depend on several the factors, such as: construction material, location, ventilation of the space, existence of basement, floor level, measuring time, geological features, etc. The obtained values are compared with the world average value reported by UNSCEAR and published values for dwellings in Romania and other countries. It is known the fact that the exposure of human beings to ionizing radiation from external and internal natural sources, is 2.4 mSv y-1 and from this 1.2 mSv y-1 is due to indoor radon. The obtained results show that the radon concentration in several houses, built from slag bricks or adobe, exceeds the legislated limit for the average annual reference level (300 Bq m-3 set by Romanian legislation, Law no. 63/2018). Utilization of the active detectors is very advantageous by offering a graphic with the hourly variations of radon/thoron concentration in air over a long period, based on which there could be identified the intervals in which the supplementary aeration of spaces would be necessary.