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Estimation of external gamma radiation dose in the area of Bory Stobrawskie forests (PL).

Dołhańczuk-Śródka A - Environ Monit Assess (2011)

Bottom Line: The study assessed the radiological risks associated with the presence of natural and artificial radionuclides in the Bory Stobrawskie forests (PL).Using the conversion factors given by UNSCEAR and the measurements results of (232)Th series, (238)U series, (40)K, and (137)Cs specific activities in the 10-cm soil layer the values of absorbed dose (D) and the annual effective dose equivalent derived from terrestrial gamma radiation (E) were calculated.The calculated dose was compared with doses directly measured on the area studied.

View Article: PubMed Central - PubMed

Affiliation: Biotechnology and Molecular Biology, Opole University, ul. kard. B. Kominka 4, 45-032 Opole, Poland. agna@uni.opole.pl

ABSTRACT
The study assessed the radiological risks associated with the presence of natural and artificial radionuclides in the Bory Stobrawskie forests (PL). Using the conversion factors given by UNSCEAR and the measurements results of (232)Th series, (238)U series, (40)K, and (137)Cs specific activities in the 10-cm soil layer the values of absorbed dose (D) and the annual effective dose equivalent derived from terrestrial gamma radiation (E) were calculated. The calculated dose was compared with doses directly measured on the area studied.

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Locations of soil samples
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Fig1: Locations of soil samples

Mentions: Soil samples were collected according to established procedures. About 2 kg of soils samples were collected from the top 10 cm of the soil. Soil samples were collected in October 2009. They were taken from Bory Stobrawskie forest, located in the northeast direction from Opole (PL) at 21 locations as shown in Fig. 1. To diminish an influence of rainfall and soil moisture on measurements results (UNSCEAR 2000), the investigations were performed during dry weather, at least 2 days after rainfall. The position of the locations was determined by using global positioning system. The samples were dried at 110°C for night and day. Each of the samples were then weighed and sealed in Marinelli beakers, 450 cm3. They were stored for 4 weeks to achieve equilibrium for 238U and 232Th with their respective progeny.Fig. 1


Estimation of external gamma radiation dose in the area of Bory Stobrawskie forests (PL).

Dołhańczuk-Śródka A - Environ Monit Assess (2011)

Locations of soil samples
© Copyright Policy
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC3412953&req=5

Fig1: Locations of soil samples
Mentions: Soil samples were collected according to established procedures. About 2 kg of soils samples were collected from the top 10 cm of the soil. Soil samples were collected in October 2009. They were taken from Bory Stobrawskie forest, located in the northeast direction from Opole (PL) at 21 locations as shown in Fig. 1. To diminish an influence of rainfall and soil moisture on measurements results (UNSCEAR 2000), the investigations were performed during dry weather, at least 2 days after rainfall. The position of the locations was determined by using global positioning system. The samples were dried at 110°C for night and day. Each of the samples were then weighed and sealed in Marinelli beakers, 450 cm3. They were stored for 4 weeks to achieve equilibrium for 238U and 232Th with their respective progeny.Fig. 1

Bottom Line: The study assessed the radiological risks associated with the presence of natural and artificial radionuclides in the Bory Stobrawskie forests (PL).Using the conversion factors given by UNSCEAR and the measurements results of (232)Th series, (238)U series, (40)K, and (137)Cs specific activities in the 10-cm soil layer the values of absorbed dose (D) and the annual effective dose equivalent derived from terrestrial gamma radiation (E) were calculated.The calculated dose was compared with doses directly measured on the area studied.

View Article: PubMed Central - PubMed

Affiliation: Biotechnology and Molecular Biology, Opole University, ul. kard. B. Kominka 4, 45-032 Opole, Poland. agna@uni.opole.pl

ABSTRACT
The study assessed the radiological risks associated with the presence of natural and artificial radionuclides in the Bory Stobrawskie forests (PL). Using the conversion factors given by UNSCEAR and the measurements results of (232)Th series, (238)U series, (40)K, and (137)Cs specific activities in the 10-cm soil layer the values of absorbed dose (D) and the annual effective dose equivalent derived from terrestrial gamma radiation (E) were calculated. The calculated dose was compared with doses directly measured on the area studied.

Show MeSH