Radiochemical analysis of $sup 210$Pb, as well as distribution of $sup 210$Pb, $sup 90$Sr, and $sup 137$Cs in soil profiles. 1
Journal Article
·
· Radioisotopes (Tokyo), v. 22, no. 7, pp. 331-337
OSTI ID:4415291
Soils were extracted with 6 N hydrochloric acid cortaining Pb, Cs, and Sr carriers. /sup 137/Cs and /sup 90/Sr were separated, and then Pb in the residual solution was separated as sulfide and radiochemically purified. After the addition of Hi carrier and the achievement of radioactive equilibrium, Hi was separated as oxychloride and submitted to radioassay. This radioactivity was identified as that of /sup 210/Br. Therefore this method was considered as a useful one for radiochemical analysis of /sup 210/Pb in soil. By the application of this method, the following results were obtained: /sup 210/Pb was distributed mostly within soil profiles reaching down to 15 cm. The trend of vertical distribution was almost the same also for /sup 90/Sr and /sup 137/Cs. /sup 210/ Pb content was higher in phosphate rocks th an in soils. But a hypothetical pathway, along which /sup 210/Pb in phosphate rocks contminates soils as an impurity of phosphate fertilizers, was not considered to make an important contribution to the ground deposition of /sup 210/Pb. (auth)
- Research Organization:
- Sagami Chemical Research Center, Kanagawa, Japan
- NSA Number:
- NSA-29-009852
- OSTI ID:
- 4415291
- Journal Information:
- Radioisotopes (Tokyo), v. 22, no. 7, pp. 331-337, Journal Name: Radioisotopes (Tokyo), v. 22, no. 7, pp. 331-337; ISSN RAISA
- Country of Publication:
- Japan
- Language:
- English
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Related Subjects
*LEAD 210-- RADIOCHEMICAL ANALYSIS BISMUTH-- BISMUTH 210-- CARRIERS-- EQUILIBRIUM-- RADIOACTIVITY
CESIUM 137-- DISTRIBUTION-- RADIONUCLIDE MIGRATION-- STRONTIUM 90-- SURFACE CONTAMINATION-- TRACE AMOUNTS
N40130* --Chemistry--Analytical & Separations Chemistry-- Radiometric & Radiochemical Procedures
N44320 --Environmental & Earth Sciences--Radioactivity Monitoring & Transport--Soil
CESIUM 137-- DISTRIBUTION-- RADIONUCLIDE MIGRATION-- STRONTIUM 90-- SURFACE CONTAMINATION-- TRACE AMOUNTS
N40130* --Chemistry--Analytical & Separations Chemistry-- Radiometric & Radiochemical Procedures
N44320 --Environmental & Earth Sciences--Radioactivity Monitoring & Transport--Soil