The University of Southampton
University of Southampton Institutional Repository

Spatial distribution of 241Am, 137Cs, 238Pu, 239,240Pu and 241Pu over 17 year periods in the Ravenglass saltmarsh, Cumbria, UK

Oh, J.-S., Warwick, P.E. and Croudace, I.W. (2009) Spatial distribution of 241Am, 137Cs, 238Pu, 239,240Pu and 241Pu over 17 year periods in the Ravenglass saltmarsh, Cumbria, UK Applied Radiation and Isotopes, 67, (7-8), pp. 1484-1492. (doi:10.1016/j.apradiso.2009.02.048).

Record type: Article


Ninety five surface scrape samples were collected at the Ravenglass saltmarsh and analysed for radionuclides by alpha spectrometry (238Pu and 239,240Pu), gamma spectrometry (241Am and 137Cs) and liquid scintillation counting (241Pu). Both 241Am and 137Cs activities are compared with those reported by Horrill [1983. Concentrations and spatial distribution of radioactivity in an ungrazed saltmarsh. In: Coughtrey, P.J. (Ed.), Ecological Aspects of Radionuclide Release. British Ecological Society Special Publication No. 3. Blackwell, Oxford, pp. 119–215.] Significant decreases in activities for both radionuclides were observed which is caused by the declining levels of discharges from the Sellafield nuclear reprocessing plant since the 1980s. It has been concluded that the spatial distribution of these radionuclides are controlled by the tidal currents and the clay contents in the sediments. There is evidence of surface erosion of the saltmarsh and redistribution of radionuclides in the saltmarsh using isotopic ratios of measured Pu.

Full text not available from this repository.

More information

Published date: August 2009
Keywords: Ravenglass saltmarsh, Sellafield, 241Am, 137Cs, 238Pu, 239, 240Pu and 241Pu, Gamma spectrometry, Radiochemical separation


Local EPrints ID: 69167
ISSN: 0969-8043
PURE UUID: e5749f8a-ba2b-4417-a934-4dac8c67509c

Catalogue record

Date deposited: 22 Oct 2009
Last modified: 19 Jul 2017 00:13

Export record



Author: J.-S. Oh
Author: P.E. Warwick
Author: I.W. Croudace

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton:

ePrints Soton supports OAI 2.0 with a base URL of

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.