Occupational exposure to radon and natural gamma radiation in the La Carolina, a former gold mine in San Luis Province, Argentina

Anjos, R. M.; Umisedo, Nancy K.; Silva, A.A.R. da; Estellita, L.; Rizzotto, M.; Yoshimura, Elisabeth Mateus; Velasco, H.; Santos, A.M.A.

doi:10.1016/j.jenvrad.2009.09.010

Cited by 28 publications

(9 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Indoor exposure due to natural radionuclides in building materials can also be calculated using mathematical models that consider geometry variation according to the building design and building material (Stranden, 1979;Koblinger, 1984;Markkanen, 1995). Assessments of the radiation hazard to the lung and respiratory tract due to the radioactive inert gas radon, however, requires additional parameters, because the radon concentration in dwellings depends on material properties such as density, porosity and thickness, as well as on the environmental conditions, such as relative humidity, temperature, air-flow direction and frequency of air changes (UNSCEAR, 1982(UNSCEAR, , 1988Rizzo et al, 2001;Anjos et al, 2010;Da Silva et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the radiation dose due to the use of fly ash from thermal power plants as a building material

et al. 2016

View full text Add to dashboard Cite

A study was undertaken to evaluate the radiation doses arising from a dwelling built using fly ash as one of the components of the concrete in different proportions. The radioactivity contents of the fly ash samples were determined and doses to occupants were calculated assuming different scenarios. The internal dose in an office and home were in the range of 0.028 to 0.049 mSv year −1 and 0.099 to 0.17 mSv year −1 , respectively. The external doses ranged between 0.046 and 0.21 mSv year −1 in the office and 0.1 and 0.69 mSv year −1 in the home. The cumulative dose from the use of fly ash as a building material ranged from 0.074 to 0.26 mSv year −1 in the office and 0.2 to 0.86 mSv year −1 in the home.

show abstract

Section: Introductionmentioning

confidence: 99%

Evaluation of the radiation dose due to the use of fly ash from thermal power plants as a building material

et al. 2016

View full text Add to dashboard Cite

show abstract

“…Radon atoms are continuously generated in the rock matrix and emanate into the air-filled pore space, from where some of them reach the ground surface and escape into the atmosphere (Anjos et al, 2010a;Estellita et al, 2010;Steinitz, Piatibratova, & Kotlarsky, 2011). The generation of radon depends on the uranium concentration and the nature of the parent mineral.…”

Section: Introductionmentioning

confidence: 99%

Depth determination of the subsurface uranium deposits using CR-39 cylindrical technique in Gneissoic granitic rocks, Abu Rushied area, Southeastern Desert, Egypt

Hassan

2015

Journal of Radiation Research and Applied Sciences

View full text Add to dashboard Cite

Using solid state nuclear track detectors and employing CR-39 cylindrical technique, the depth of the subsurface uranium deposits were determined. This techniques depends mainly on the nuclear track detector situated in zigzag form inside a polyethylene cylinder of 65 cm length and 7 cm diameter. This technique was applied on a borehole in a granite mass Abu Rushied area, southeast area desert. The obtained results revealed that, the depth of U-ore deposited reached about 89 m with thickness nearly 24 m. The obtained data for radon concentrations were also used for the determination of the exhalation rates, the measured values for exhalation rate (mBqm À2 h À1) varies between 6.14E-03 at h ¼ 50 cm and 4.53E-02 at h ¼ 10 cm, The obtained values are comparable with that recorded for the granite type of rock.

show abstract

“…La luz y el calor de las reacciones nucleares en el Sol son esenciales para nuestra existencia. Gran cantidad de materiales constituyentes de la naturaleza y algunos elementos fabricados por el hombre emiten radiación, de modo que toda la vida en la Tierra se ha desarrollado en su presencia (1)(2)(3)(4).…”

Section: Introduccionunclassified

Enseñando Radioecología: Medición De La Radiación Gamma Natural en Ambientes De La Provincia De San Luis Teaching Radioecology: Measurement of the Natural Gamma Radiation in Environments of San Luis Province

Rizzotto¹,

Anjos²,

Estellita³

et al. 2010

AnAFA

Self Cite

View full text Add to dashboard Cite

The study of environmental radioactivity is a topic not usually included in physics courses at the secondary and even university levels. Consequently, students are not able to properly discuss the effects of exposure to terrestrial gamma radiation. This paper proposes to approach the issue of ionizing radiation interaction with our environment, in which measurements of gamma exposure rates using a Geiger-Müller type gauge are evaluated. The experimental activity is performed in different working environments, urban and touristic, of San Luis province in Argentina. Particularly, the Bebedero salt mine and the La Carolina old gold mine and surrounding areas. Therefore, our aim is also to develop new techniques for teaching physics, awaking the scientific interest of students in nuclear physics applications to environmental sciences.

show abstract

Occupational exposure to radon and natural gamma radiation in the La Carolina, a former gold mine in San Luis Province, Argentina

Cited by 28 publications

References 19 publications

Evaluation of the radiation dose due to the use of fly ash from thermal power plants as a building material

Evaluation of the radiation dose due to the use of fly ash from thermal power plants as a building material

Depth determination of the subsurface uranium deposits using CR-39 cylindrical technique in Gneissoic granitic rocks, Abu Rushied area, Southeastern Desert, Egypt

Enseñando Radioecología: Medición De La Radiación Gamma Natural en Ambientes De La Provincia De San Luis Teaching Radioecology: Measurement of the Natural Gamma Radiation in Environments of San Luis Province

Contact Info

Product

Resources

About