View in EDS

Modelling the radionuclide balance in some water bodies of central Italy

Saved in:
Bibliographic Details
Title: Modelling the radionuclide balance in some water bodies of central Italy
Authors: Pompei, F., Fratarcangeli, S., Monte, L., Baldini, E., Batella, C.
Source: Journal of Environmental Radioactivity. 1997, Vol. 37 Issue 3, p269. 0p.
Subjects: Cesium, Radioactivity, Soil pollution
Abstract: This article illustrates the quantitative analysis of the radionuclide behaviour in some lakes of central Italy and in their outlets. Themigration rates and the effective transport velocities of the radionuclides to sediment were estimated. In the examined lakes (Albano, Bolsena, Bracciano, Nemi and Vico), the concentrations of 90Sr and 137Cs show a marked exponential time decay due to the radioactive decay, the radionuclide removal by the outlets and theradionuclide migration from water to bottom sediments. It was estimated that the 137Cs average migration rate to sediment is 1.2 x 10-9 s-1 corresponding to an effective migration velocity of 5.8 x 10- 8 m s-1. The radionuclide concentrations in watercourses Marta (outlet of Lake Bolsena)and Rio Vicano (outlet of Lake Vico) were fitted by exponential (decay) functions of the distance from the lake. The 'half-distance' of the above process ('half-distance' = the distance for the radionuclideconcentration reduces to one half) is 12.6 km and 3.9 km for 137Cs in river Marta and Rio Vicano, respectively. The half-distances for 90Sr in the above watercourses are, respectively,30 km and 5.8 km. The half-distances were quantitatively related to the effects of water dilution and to the radionuclide contribution from catchment. The analysed data offered the opportunity of calculating that the 90Sr contribution from catchment to the examined watercourses is in the order of 10-3--10-4 Bqs- 1 m-1 (radionuclide flowing per second and per metre of river). ) 1997 Elsevier Science Ltd. [ABSTRACT FROM AUTHOR]
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
Header DbId: egs
DbLabel: Engineering Source
An: 8330700
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Modelling the radionuclide balance in some water bodies of central Italy
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Pompei%2C+F%2E%22">Pompei, F.</searchLink><br /><searchLink fieldCode="AR" term="%22Fratarcangeli%2C+S%2E%22">Fratarcangeli, S.</searchLink><br /><searchLink fieldCode="AR" term="%22Monte%2C+L%2E%22">Monte, L.</searchLink><br /><searchLink fieldCode="AR" term="%22Baldini%2C+E%2E%22">Baldini, E.</searchLink><br /><searchLink fieldCode="AR" term="%22Batella%2C+C%2E%22">Batella, C.</searchLink>
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Journal+of+Environmental+Radioactivity%22">Journal of Environmental Radioactivity</searchLink>. 1997, Vol. 37 Issue 3, p269. 0p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Cesium%22">Cesium</searchLink><br /><searchLink fieldCode="DE" term="%22Radioactivity%22">Radioactivity</searchLink><br /><searchLink fieldCode="DE" term="%22Soil+pollution%22">Soil pollution</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: This article illustrates the quantitative analysis of the radionuclide behaviour in some lakes of central Italy and in their outlets. Themigration rates and the effective transport velocities of the radionuclides to sediment were estimated. In the examined lakes (Albano, Bolsena, Bracciano, Nemi and Vico), the concentrations of 90Sr and 137Cs show a marked exponential time decay due to the radioactive decay, the radionuclide removal by the outlets and theradionuclide migration from water to bottom sediments. It was estimated that the 137Cs average migration rate to sediment is 1.2 x 10-9 s-1 corresponding to an effective migration velocity of 5.8 x 10- 8 m s-1. The radionuclide concentrations in watercourses Marta (outlet of Lake Bolsena)and Rio Vicano (outlet of Lake Vico) were fitted by exponential (decay) functions of the distance from the lake. The 'half-distance' of the above process ('half-distance' = the distance for the radionuclideconcentration reduces to one half) is 12.6 km and 3.9 km for 137Cs in river Marta and Rio Vicano, respectively. The half-distances for 90Sr in the above watercourses are, respectively,30 km and 5.8 km. The half-distances were quantitatively related to the effects of water dilution and to the radionuclide contribution from catchment. The analysed data offered the opportunity of calculating that the 90Sr contribution from catchment to the examined watercourses is in the order of 10-3--10-4 Bqs- 1 m-1 (radionuclide flowing per second and per metre of river). ) 1997 Elsevier Science Ltd. [ABSTRACT FROM AUTHOR]
– 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.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=8330700
RecordInfo BibRecord:
  BibEntity:
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 0
        StartPage: 269
    Subjects:
      – SubjectFull: Cesium
        Type: general
      – SubjectFull: Radioactivity
        Type: general
      – SubjectFull: Soil pollution
        Type: general
    Titles:
      – TitleFull: Modelling the radionuclide balance in some water bodies of central Italy
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Pompei, F.
      – PersonEntity:
          Name:
            NameFull: Fratarcangeli, S.
      – PersonEntity:
          Name:
            NameFull: Monte, L.
      – PersonEntity:
          Name:
            NameFull: Baldini, E.
      – PersonEntity:
          Name:
            NameFull: Batella, C.
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 11
              Text: 1997
              Type: published
              Y: 1997
          Identifiers:
            – Type: issn-print
              Value: 0265931X
          Numbering:
            – Type: volume
              Value: 37
            – Type: issue
              Value: 3
          Titles:
            – TitleFull: Journal of Environmental Radioactivity
              Type: main
ResultId 1