[The radioecology of the grapevine. 2. Effects of the nuclear reactor accident in Chernobyl on the radioactivity in the soil, leaves, grapes and wine].
Natural (tritium, 14C, 40K, 226Ra) and man-made radionuclides (90Sr, 134Cs, 137Cs) were determined in soil (top 30 cm), vine leaves, grapes and wine in eight locations of the most important viticultural regions in the Federal Republic of Germany. The results obtained in 1983-1985 have been published previously. Part II of this study presents results obtained in 1986 and 1987, i.e. after the reactor accident at Chernobyl in the Soviet Union. The mean content of 137Cs before (after) Chernobyl was 4 (9) Bq/kg dry matter in soil, 0.07 (3) Bq/kg fresh matter in leaves, 0.02 (0.4) Bq/kg in grapes, and 0.008 (0.9) Bq/L in wine. As compared with 1986, distinctly lower levels were found in leaves, grapes and wine in 1987. In 1986 the content of 134Cs was about half that of 137Cs. Owing to its shorter half-life, 134Cs was below the detection limit in many of the 1987 samples. Transfer factors such as from soil to leaves and from soil to grapes for caesium agreed well in 1983-1985 and 1987, but showed considerable deviations in 1986, due to the ubiquitous contamination of the environment. Results of 90Sr determinations confirmed other reports showing this radionuclide to be a very minor contributor to the total radioactivity released at Chernobyl. No effect of the reactor accident on levels of the other radionuclides was detected.
Wagner
A
A
Bundesforschungsanstalt für Ernährung, Institut für Ernährungsphysiologie, Karlsruhe, Bundesrepublik Deutschland.
Diehl
J F
JF
D000059:Accidents; D002250:Carbon Radioisotopes / Q000032:analysis; D002588:Cesium Radioisotopes / Q000032:analysis; D005507:Food Contamination, Radioactive / Q000032:analysis*; D005638:Fruit; D005860:Germany, West; D009688:Nuclear Reactors; D011197:Potassium Radioisotopes / Q000032:analysis; D011883:Radium / Q000032:analysis; D012990:Soil Pollutants, Radioactive / Q000032:analysis*; D013326:Strontium Radioisotopes / Q000032:analysis; D014316:Tritium / Q000032:analysis; D014455:Ukraine; D014920:Wine
D002250:Carbon Radioisotopes; D002588:Cesium Radioisotopes; D011197:Potassium Radioisotopes; D012990:Soil Pollutants, Radioactive; D013326:Strontium Radioisotopes; D014316:Tritium; D011883:Radium
Zur Radioökologie der Weinrebe. Teil 2. Auswirkungen des Reaktorunfalls von Tschernobyl auf Radioaktivität in Boden, Blättern, Trauben und Wein.