Soil contamination with 90Sr in the near zone of the Chernobyl accident.
J Environ Radioact
; 56(3): 285-98, 2001.
Article
in En
| MEDLINE
| ID: mdl-11468820
ABSTRACT
Representative large-scale soil sampling on a regular grid of step width about 1 km was carried out for the first time in the near zone of the Chernobyl accident (radius 36 km). An integrated map of terrestrial 90Sr contamination density in the 30 km exclusion zone (scale 1200,000) has been created from the analysed samples. Maps of the main agrochemical characteristics of the soils, which determine the fuel particle dissolution rates and the contamination of vegetation, were produced. The total contents of 90Sr on the ground surface of the 30 km zone in Ukraine (without the reactor site and the radioactive waste storages) was about 810 TBq (8.1 x 10(+14) Bq) in 1997, which corresponds to 0.4-0.5% of the Chernobyl reactor inventory at the time of the accident. This assessment is 3-4 times lower than previous estimates.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Radioactive Fallout
/
Soil Pollutants, Radioactive
/
Strontium Radioisotopes
/
Radioactive Hazard Release
Country/Region as subject:
Europa
Language:
En
Journal:
J Environ Radioact
Journal subject:
SAUDE AMBIENTAL
Year:
2001
Document type:
Article
Affiliation country:
Ucrania