Radiocaesium and plutonium in Atlantic surface waters from 73oN to 72oS
Creators
- 1. Lund Univ. (Sweden). Dept. of Radiation Physics
- 2. Polish Academy of Sciences, Sopot (Poland). Inst. of Oceanology
- 3. Risoe National Lab., Roskilde (Denmark)
- 4. Woods Hole Oceanographic Institution, MA (United States)
Description
During the recent Swedish Antartic research Expedition (SWEDARP 89/89) samples of surface sea water were collected on board the Stena Arctica between Gothenburgh, Sweden and the Antarctic Peninsula. Radio chemical separation was performed for radiocaesium on 200 1 samples and for plutonium on samples between 200 and 1500 1. The results are compared with those of the GEOSECS expedition in the North and South Atlantic in 1972-73 and the Polish expedition in 1977-78. They show that radiocaesium has behaved rather conservatively and that the decrease in surface water concentrations during 16 years is due to physical decay. On the other hand levels of 239+240Pu have decreased by a factor of 4-5 giving a half life of 7-8 years in open Atlantic surface waters. (Author)
Additional details
Publishing Information
- Publisher
- Elsevier Applied Science.
- Imprint Place
- London (United Kingdom)
- ISBN
- 1-85166-707-5
- Imprint Title
- Radionuclides in the study of marine processes
- Imprint Pagination
- 393 p.
- Journal Page Range
- p. 3-11.
Conference
- Title
- International symposium on radionuclides in the study of marine processes.
- Dates
- 10-13 Sep 1991.
- Place
- Norwich (United Kingdom).
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- United Kingdom
- INIS RN
- 26000714
- Subject category
- S54: ENVIRONMENTAL SCIENCES;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ATLANTIC OCEAN; CESIUM; CESIUM 134; CESIUM 137; HALF-LIFE; PLUTONIUM; PLUTONIUM 239; PLUTONIUM 240; RADIOISOTOPES; SAMPLING; SEPARATION PROCESSES
- Descriptors DEC
- ACTINIDE NUCLEI; ACTINIDES; ALKALI METALS; ALPHA DECAY RADIOISOTOPES; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CESIUM ISOTOPES; ELECTRON CAPTURE RADIOISOTOPES; ELEMENTS; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; HEAVY NUCLEI; HOURS LIVING RADIOISOTOPES; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTOPES; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; METALS; NUCLEI; ODD-EVEN NUCLEI; ODD-ODD NUCLEI; PLUTONIUM ISOTOPES; SEAS; SPONTANEOUS FISSION RADIOISOTOPES; SURFACE WATERS; TRANSURANIUM ELEMENTS; YEARS LIVING RADIOISOTOPES