Hyperaccumulation of radioactive isotopes by marine algae
- 1. National Inst. of Radiological Sciences, Research Center for Radiation Safety, Hitachinaka, Ibaraki (Japan)
Description
Hyperaccumlators are effective indicator organisms for monitoring marine pollution by heavy metals and artificial radionuclides. We found a green algae, Bryopsis maxima that hyperaccumulate a stable and radioactive isotopes such as Sr-90, Tc-99, Ba-138, Re-187, and Ra-226. B. maxima showed high concentration factors for heavy alkali earth metals like Ba and Ra, compared with other marine algae in Japan. Furthermore, this species had the highest concentrations for Tc-99 and Re-187. The accumulation and excretion patterns of Sr-85 and Tc-95m were examined by tracer experiments. The chemical states of Sr and Re in living B. maxima were analyzed by HPLC-ICP/MS, LC/MS, and X-ray absorption fine structure analysis using synchrotron radiation. (author)
Files
36116262.pdf
Files
(230.8 kB)
| Name | Size | Download all |
|---|---|---|
|
md5:c59db46afe1487266d41803425ca2e93
|
230.8 kB | Preview Download |
Additional details
Publishing Information
- Imprint Title
- Proceedings of the international symposium: Transfer of radionuclides in biosphere. Prediction and assessment
- Imprint Pagination
- 408 p.
- Journal Page Range
- p. 187-191
- Report number
- JAERI-Conf--2003-010
Conference
- Title
- Transfer of radionuclides in biosphere. Prediction and assessment
- Acronym
- International symposium
- Dates
- 18-19 Dec 2002
- Place
- Mito, Ibaraki (Japan)
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 36116262
- Subject category
- S54: ENVIRONMENTAL SCIENCES;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ALGAE; BUILDUP; RADIOISOTOPES; RADIUM 226; RHENIUM 187; SEAS; STRONTIUM 85; TECHNETIUM 99; TRACER TECHNIQUES; WATER POLLUTION
- Descriptors DEC
- ALKALINE EARTH ISOTOPES; ALPHA DECAY RADIOISOTOPES; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CARBON 14 DECAY RADIOISOTOPES; DAYS LIVING RADIOISOTOPES; ELECTRON CAPTURE RADIOISOTOPES; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; HEAVY ION DECAY RADIOISOTOPES; HEAVY NUCLEI; HOURS LIVING RADIOISOTOPES; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTOPES; ISOMERIC TRANSITION ISOTOPES; ISOTOPE APPLICATIONS; ISOTOPES; NUCLEI; ODD-EVEN NUCLEI; PLANTS; POLLUTION; RADIOISOTOPES; RADIUM ISOTOPES; RHENIUM ISOTOPES; STABLE ISOTOPES; STRONTIUM ISOTOPES; SURFACE WATERS; TECHNETIUM ISOTOPES; YEARS LIVING RADIOISOTOPES
Optional Information
- Notes
- 7 refs., 2 figs., 1 tab.; This record replaces 35028259