Stojanovska, Zdenka and Boev, Blazo and Ristova, Mimoza and Boev, Ivan and Ajka, Sorsa and Zunic, Zora S. and Ivanova, Kremena (2019) Risk assessment resulting from radionuclides in soils of the Republic of Macedonia. Contributions, Section of Natural, Mathematical and Biotechnical Sciences, MASA, 40 (2). pp. 161-168. ISSN 1857–9027
Preview |
Text
Stojanovska,Contributions,2019.pdf Download (653kB) | Preview |
Abstract
In the last decade, many studies have been made for measuring natural radioactivity in regions of the Republic of
Macedonia. However, the information on terrestrial radiation exposure, and, consequently, risk assessment were not
available. In this study, a risk assessment was done considering a specific activity concentration of
137
Cs in the topsoil. The results indicate that the external gamma doses due to natural radionuclides in soils are higher
than those of
137
Cs. The absorbed dose rate in air varies in intervals: from 4.3 to 57 nGy/h (due to
Ra); from 3.9 to 88
nGy/h (due to
232
Th); from 3.3 to 58 nGy/h (due to
40
K); and from 0.01 to 5.3 nGy/h (due to
Cs). In addition, the
mean annual effective doses due to natural radionuclides and
137
Cs in the soils of the Republic of Macedonia are estimated
to
be
78
μSv and 1.01 μSv, respectively. As well as, the values of external hazard index H
ex
indicate in general
low gamma radiation risk for populations living in the Republic of Macedonia.
226
226
137
Ra,
232
Th,
40
K and
| Item Type: | Article |
|---|---|
| Subjects: | Natural sciences > Physical sciences |
| Divisions: | Faculty of Medical Science |
| Depositing User: | Zdenka Stojanovska |
| Date Deposited: | 24 Jun 2019 10:06 |
| Last Modified: | 24 Jun 2019 10:06 |
| URI: | https://eprints.ugd.edu.mk/id/eprint/22169 |
Actions (login required)
 |
View Item |