Radiocesium Transfer to Sheeps Milk as a Result of Soil Ingestion
Φόρτωση...
Ημερομηνία
Συγγραφείς
Assimakopoulos, P. A.
Ioannides, K. G.
Karamanis, D. T.
Pakou, A. A.
Stamoulis, K. C.
Mantzios, A. S.
Nikolaou, E.
Τίτλος Εφημερίδας
Περιοδικό ISSN
Τίτλος τόμου
Εκδότης
Περίληψη
Τύπος
Είδος δημοσίευσης σε συνέδριο
Είδος περιοδικού
peer reviewed
Είδος εκπαιδευτικού υλικού
Όνομα συνεδρίου
Όνομα περιοδικού
Science of the Total Environment
Όνομα βιβλίου
Σειρά βιβλίου
Έκδοση βιβλίου
Συμπληρωματικός/δευτερεύων τίτλος
Περιγραφή
Soil ingestion as a source of radiocaesium contamination to ruminants was studied by measuring the transfer coefficient to sheep milk. Eight lactating ewes, housed in individual metabolism cages, were used. Fifty grams per day of heavily contaminated sandy topsoil, collected in 1990 from the Chernobyl area, were administered orally to the animals for a period of 1 week. The daily dose intake in Cs-137 was 1835 Bq day-1. During this contamination period, daily milk production and excreta output were measured. The ewes were monitored for an additional 7 day decontamination period, while they fed on uncontaminated feed. Transfer coefficients were obtained through a best fit (minimum chi2) of the data to predictions of a linear compartment model. The values obtained were f(m) = (2.6 +/- 0.7) x 10(-2) and f(u( = (5 +/- 2) x 10(-2) days kg-1 for radiocaesium transport to milk and urine, respectively. These results suggest that soil ingestion can be a major source of radiocontamination for sheep and other free-grazing ruminants. Comparison of our results with soil-to-milk transfer coefficient values derived in two recent independent experiments suggests that there might be a strong dependence of radiocaesium availability on soil composition.
Περιγραφή
Λέξεις-κλειδιά
soil ingestion, trace element transport, radiocesium contamination, sheep milk, transfer coefficient, chernobyl fallout, radiocesium, cs-137, transport, pasture, animals
Θεματική κατηγορία
Παραπομπή
Σύνδεσμος
<Go to ISI>://A1993LW52300002
http://ac.els-cdn.com/004896979390293F/1-s2.0-004896979390293F-main.pdf?_tid=0c58d1c21808f3f21a7ef375e7d750bb&acdnat=1334222914_c3b0d87875cd1a7b6ac5a2e1ad136b65
http://ac.els-cdn.com/004896979390293F/1-s2.0-004896979390293F-main.pdf?_tid=0c58d1c21808f3f21a7ef375e7d750bb&acdnat=1334222914_c3b0d87875cd1a7b6ac5a2e1ad136b65
Γλώσσα
en
Εκδίδον τμήμα/τομέας
Όνομα επιβλέποντος
Εξεταστική επιτροπή
Γενική Περιγραφή / Σχόλια
Ίδρυμα και Σχολή/Τμήμα του υποβάλλοντος
Πανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών και Τεχνολογιών. Τμήμα Βιολογικών Εφαρμογών και Τεχνολογιών