2007
DOI: 10.1097/01.hp.0000232855.00189.af
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Concentration and Vertical Distribution of 137cs in the Undisturbed Soil of Southwestern Nigeria

Abstract: The results of measurements of 137Cs in soil profiles that were sampled in undisturbed soil in Ondo, Ekiti, and Oyo states in the southwestern area of Nigeria are presented in this paper. Samples were collected from nine soil profiles. The vertical distributions of 137Cs in the soil profiles have been determined. Cesium concentration ranged from 0.31 +/- 0.10 Bq kg(-1) in the 0-2 cm depth to a maximum of 1.25 +/- 0.21 Bq kg(-1) in the 6-8 cm depth at some sites and from 3.16 +/- 0.16 Bq kg(-1) in 0-5 cm depth … Show more

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Cited by 9 publications
(16 citation statements)
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“…From literature, migration values between 0.03 and 1.30 cm a À1 are known (Schimmack et al, 1989;Arapis and Karandinos, 2004;Schuller et al, 2004;Schimmack and Schultz, 2006;Ajayi et al, 2007). However, our measurements show that in the Urseren Valley most of the 137 Cs is still stored in the top 10 cm of the soil profile.…”
Section: Sources Of Errormentioning
confidence: 55%
“…From literature, migration values between 0.03 and 1.30 cm a À1 are known (Schimmack et al, 1989;Arapis and Karandinos, 2004;Schuller et al, 2004;Schimmack and Schultz, 2006;Ajayi et al, 2007). However, our measurements show that in the Urseren Valley most of the 137 Cs is still stored in the top 10 cm of the soil profile.…”
Section: Sources Of Errormentioning
confidence: 55%
“…In literature migration values between 0.03 and 1.30 cm yr −1 are reported (Schimmack et al, 1989;Arapis and Karandinos, 2004;Schuller et al, 2004;Schimmack and Schultz, 2006;Ajayi et al, 2007). In the Ursern Valley, 137 Cs activity (Bq kg −1 ) declines exponentially with soil depth.…”
Section: Cs To Assess Total Net Soil Redistributionmentioning
confidence: 95%
“…The concentration and vertical distribution of 137 Cs in an undisturbed soil in southwestern Nigeria had been experimentally studied (Ajayi et al 2007). The study had provided further knowledge on 137 Cs transport and migration behaviour in soil in addition to the several studies that had previously been done by many researchers in the subject (Coughtrey and Thorne, 1983, Lee and Lee 1997, Schuller et al 1997, Kanunakara et al 2001, Grzegorz et al 2003and Kristic et al 2004.…”
Section: Introductionmentioning
confidence: 98%