Laboratory analyses of 137Cs uptake by sunflower, reed and poplar
Language English Country Great Britain, England Media print
Document type Comparative Study, Journal Article, Research Support, Non-U.S. Gov't
PubMed
15051376
DOI
10.1016/j.chemosphere.2003.12.011
PII: S0045-6535(04)00009-8
Knihovny.cz E-resources
- MeSH
- Autoradiography MeSH
- Biodegradation, Environmental MeSH
- Time Factors MeSH
- Potassium MeSH
- Hydroponics MeSH
- Quaternary Ammonium Compounds MeSH
- Cesium Radioisotopes analysis pharmacokinetics MeSH
- Plants metabolism MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
- Comparative Study MeSH
- Names of Substances
- Potassium MeSH
- Quaternary Ammonium Compounds MeSH
- Cesium Radioisotopes MeSH
The 137Cs uptake by three plant species (Phragmites australis L., Heliantus annus L., Populus simonii L.) was analyzed in a hydroponic medium (14 MBql(-1); 0.5 mM CsCl) during cultivation. The radioactivity disappearance from the medium was measured after 2, 4, 8, 16 and 32 days of cultivation. Radioactivity distribution within the plant was determined by autoradiography. We did not find differences between uptake of radioactive and stable caesium isotopes. Relations between the uptake of 137Cs and concentration of potassium and ammonium ions in medium were also tested. The highest uptake of radiocaesium by sunflower was obtained for medium with 1 mM K2SO4 (14.2%) and in case of ammonium ions for concentration ratio 6 mM NH4Cl : 3 mM NH4NO3 (13.2%). The obtained results make it possible to compare the capability and rate of 137Cs phytoremediation of different plant species.
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