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Polonium-210 and lead-210 in marine food chains

Journal Article:

Abstract

/sup 210/Po and /sup 210/Pb have been measured systematically in whole animals, muscle and hepatopancreas of crustaceans and of molluscan cephalopods representative of a pelagic and benthic food chain. The same nuclides were also measured in liver, pyloric caecum, stomach contents and muscle of tuna. The concentration factors from sea water to whole animals were approximately constant along both food chains, being of the order of 10/sup 4/ for /sup 210/Po and 10/sup 2/ for /sup 210/Pb. The highest concentration factors were found in shrimp of the genus Sergestes. In muscle, the concentration factors were an order of magnitude less; in the hepatopancreas, they were an order of magnitude higher, reaching 10/sup 6/ in shrimp of the genus Sergestes. Such concentrations imply alpha-radiation doses of the order of 10 rem per year and more in this organ, which contains about 50 to 90% of the /sup 210/Po in the whole animal in the 11 species analyzed. A detailed study of the intracellular behaviour of /sup 210/Po in the hepatopancreas is clearly indicated. /sup 210/Po can be used as a sensitive natural tracer in biological systems. Thus, feeding Meganyctiphanes norvegica in the laboratory on food low in /sup 210/Po led to  More>>
Authors:
Heyraud, M; [1]  Cherry, R D [2] 
  1. Musee Oceanographique (Monaco). International Lab. of Marine Radioactivity
  2. Cape Town Univ. (South Africa). Dept. of Physics
Publication Date:
Jan 01, 1979
Product Type:
Journal Article
Reference Number:
AIX-11-535466; EDB-80-086732
Resource Relation:
Journal Name: Mar. Biol.; (Germany, Federal Republic of); Journal Volume: 52
Subject:
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.; LEAD 210; RADIOECOLOGICAL CONCENTRATION; POLONIUM 210; AQUATIC ORGANISMS; BIOLOGICAL ACCUMULATION; BIOLOGICAL HALF-LIFE; BODY BURDEN; CRUSTACEANS; FISHES; FOOD CHAINS; LIVER; MOLLUSCS; MUSCLES; NATURAL RADIOACTIVITY; PANCREAS; RADIONUCLIDE KINETICS; SEAFOOD; STOMACH; TISSUE DISTRIBUTION; ALPHA DECAY RADIOISOTOPES; ANIMALS; ARTHROPODS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; BODY; DAYS LIVING RADIOISOTOPES; DIGESTIVE SYSTEM; DISTRIBUTION; ECOLOGICAL CONCENTRATION; ENDOCRINE GLANDS; EVEN-EVEN NUCLEI; FISH PRODUCTS; FOOD; GASTROINTESTINAL TRACT; GLANDS; HEAVY NUCLEI; INVERTEBRATES; ISOTOPES; LEAD ISOTOPES; NUCLEI; ORGANS; POLONIUM ISOTOPES; RADIOACTIVITY; RADIOISOTOPES; VERTEBRATES; YEARS LIVING RADIOISOTOPES; 560172* - Radiation Effects- Nuclide Kinetics & Toxicology- Animals- (-1987)
OSTI ID:
5368776
Country of Origin:
Germany
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: MBIOA
Submitting Site:
INIS
Size:
Pages: 227-236
Announcement Date:

Journal Article:

Citation Formats

Heyraud, M, and Cherry, R D. Polonium-210 and lead-210 in marine food chains. Germany: N. p., 1979. Web.
Heyraud, M, & Cherry, R D. Polonium-210 and lead-210 in marine food chains. Germany.
Heyraud, M, and Cherry, R D. 1979. "Polonium-210 and lead-210 in marine food chains." Germany.
@misc{etde_5368776,
title = {Polonium-210 and lead-210 in marine food chains}
author = {Heyraud, M, and Cherry, R D}
abstractNote = {/sup 210/Po and /sup 210/Pb have been measured systematically in whole animals, muscle and hepatopancreas of crustaceans and of molluscan cephalopods representative of a pelagic and benthic food chain. The same nuclides were also measured in liver, pyloric caecum, stomach contents and muscle of tuna. The concentration factors from sea water to whole animals were approximately constant along both food chains, being of the order of 10/sup 4/ for /sup 210/Po and 10/sup 2/ for /sup 210/Pb. The highest concentration factors were found in shrimp of the genus Sergestes. In muscle, the concentration factors were an order of magnitude less; in the hepatopancreas, they were an order of magnitude higher, reaching 10/sup 6/ in shrimp of the genus Sergestes. Such concentrations imply alpha-radiation doses of the order of 10 rem per year and more in this organ, which contains about 50 to 90% of the /sup 210/Po in the whole animal in the 11 species analyzed. A detailed study of the intracellular behaviour of /sup 210/Po in the hepatopancreas is clearly indicated. /sup 210/Po can be used as a sensitive natural tracer in biological systems. Thus, feeding Meganyctiphanes norvegica in the laboratory on food low in /sup 210/Po led to an approximate value of about 6 1/2 days for the biological half-life of /sup 210/Po in the hepatopancreas of this euphausiid. Furthermore, the data on /sup 210/Po and /sup 210/Pb in the cephalopod hepatopancreas allowed the time of conservation of frozen squid which had been bought at the market to be estimated. (orig.) 891 AJ/orig. 892 MKO.}
journal = {Mar. Biol.; (Germany, Federal Republic of)}
volume = {52}
journal type = {AC}
place = {Germany}
year = {1979}
month = {Jan}
}