Determination of natural and artificial radioactivity in soil at North Lebanon province.
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| Title: | Determination of natural and artificial radioactivity in soil at North Lebanon province. |
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| Authors: | El Samad, O.1 osamad@cnrs.edu.lb, Baydoun, R.1, Nsouli, B.1, Darwish, T.2 |
| Source: | Journal of Environmental Radioactivity. Nov2013, Vol. 125, p36-39. 4p. |
| Subjects: | Radioactive substances in soils, Induced radioactivity, Germanium detectors, Radioisotopes, Terrestrial radiation |
| Geographic Terms: | Lebanon |
| Abstract: | Abstract: The concentrations of natural and artificial radionuclides at 57 sampling locations along the North Province of Lebanon are reported. The samples were collected from uncultivated areas in a region not previously reported. The samples were analyzed by gamma spectrometers with High Purity Germanium detectors of 30% and 40% relative efficiency. The activity concentrations of primordial naturally occurring radionuclides of 238U, 232Th, and 40K varied between 4–73 Bq kg−1, 5–50 Bq kg−1, and 57–554 Bq kg−1 respectively. The surface activity concentrations due to the presence of these radionuclides were calculated and Kriging-geostatistical method was used to plot the obtained data on the Lebanese radioactive map. The results for 238U, 232Th, and 40K ranged from 0.2 kBq m−2 to 9 kBq m−2, from 0.2 kBq m−2 to 3 kBq m−2, and from 3 kBq m−2 to 29 kBq m−2 respectively. For the anthropogenic radionuclides, the activity concentrations of 137Cs founded in soil ranged from 2 Bq kg−1 to 113 Bq kg−1, and the surface activity concentration from 0.1 kBq m−2 to 5 kBq m−2. The total absorbed gamma dose rates in air from natural and artificial radionuclides in these locations were calculated. The minimum value was 6 nGy h−1 and the highest one was 135 nGy h−1 with an average of 55 nGy h−1 in which the natural terrestrial radiation contributes in 99% and the artificial radionuclides mainly 137Cs contributes only in 1%. The total effective dose calculated varied in the range of 7 μSv y−1 and 166 μSv y−1 while the average value was 69 μSv y−1 which is below the permissible limit 1000 μSv y−1. [Copyright &y& Elsevier] |
| Copyright of Journal of Environmental Radioactivity is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 90524945 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Determination of natural and artificial radioactivity in soil at North Lebanon province. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22El+Samad%2C+O%2E%22">El Samad, O.</searchLink><relatesTo>1</relatesTo><i> osamad@cnrs.edu.lb</i><br /><searchLink fieldCode="AR" term="%22Baydoun%2C+R%2E%22">Baydoun, R.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Nsouli%2C+B%2E%22">Nsouli, B.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Darwish%2C+T%2E%22">Darwish, T.</searchLink><relatesTo>2</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Environmental+Radioactivity%22">Journal of Environmental Radioactivity</searchLink>. Nov2013, Vol. 125, p36-39. 4p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Radioactive+substances+in+soils%22">Radioactive substances in soils</searchLink><br /><searchLink fieldCode="DE" term="%22Induced+radioactivity%22">Induced radioactivity</searchLink><br /><searchLink fieldCode="DE" term="%22Germanium+detectors%22">Germanium detectors</searchLink><br /><searchLink fieldCode="DE" term="%22Radioisotopes%22">Radioisotopes</searchLink><br /><searchLink fieldCode="DE" term="%22Terrestrial+radiation%22">Terrestrial radiation</searchLink> – Name: SubjectGeographic Label: Geographic Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Lebanon%22">Lebanon</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Abstract: The concentrations of natural and artificial radionuclides at 57 sampling locations along the North Province of Lebanon are reported. The samples were collected from uncultivated areas in a region not previously reported. The samples were analyzed by gamma spectrometers with High Purity Germanium detectors of 30% and 40% relative efficiency. The activity concentrations of primordial naturally occurring radionuclides of 238U, 232Th, and 40K varied between 4–73 Bq kg−1, 5–50 Bq kg−1, and 57–554 Bq kg−1 respectively. The surface activity concentrations due to the presence of these radionuclides were calculated and Kriging-geostatistical method was used to plot the obtained data on the Lebanese radioactive map. The results for 238U, 232Th, and 40K ranged from 0.2 kBq m−2 to 9 kBq m−2, from 0.2 kBq m−2 to 3 kBq m−2, and from 3 kBq m−2 to 29 kBq m−2 respectively. For the anthropogenic radionuclides, the activity concentrations of 137Cs founded in soil ranged from 2 Bq kg−1 to 113 Bq kg−1, and the surface activity concentration from 0.1 kBq m−2 to 5 kBq m−2. The total absorbed gamma dose rates in air from natural and artificial radionuclides in these locations were calculated. The minimum value was 6 nGy h−1 and the highest one was 135 nGy h−1 with an average of 55 nGy h−1 in which the natural terrestrial radiation contributes in 99% and the artificial radionuclides mainly 137Cs contributes only in 1%. The total effective dose calculated varied in the range of 7 μSv y−1 and 166 μSv y−1 while the average value was 69 μSv y−1 which is below the permissible limit 1000 μSv y−1. [Copyright &y& Elsevier] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Environmental Radioactivity is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.jenvrad.2013.02.010 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 4 StartPage: 36 Subjects: – SubjectFull: Radioactive substances in soils Type: general – SubjectFull: Induced radioactivity Type: general – SubjectFull: Germanium detectors Type: general – SubjectFull: Radioisotopes Type: general – SubjectFull: Terrestrial radiation Type: general – SubjectFull: Lebanon Type: general Titles: – TitleFull: Determination of natural and artificial radioactivity in soil at North Lebanon province. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: El Samad, O. – PersonEntity: Name: NameFull: Baydoun, R. – PersonEntity: Name: NameFull: Nsouli, B. – PersonEntity: Name: NameFull: Darwish, T. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 11 Text: Nov2013 Type: published Y: 2013 Identifiers: – Type: issn-print Value: 0265931X Numbering: – Type: volume Value: 125 Titles: – TitleFull: Journal of Environmental Radioactivity Type: main |
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