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Titolo:
Iodine-129 in human thyroids and seaweed in China
Autore:
Hou, XL; Dahlgaard, H; Nielsen, SP; Ding, WJ;
Indirizzi:
Riso Natl Lab, DK-4000 Roskilde, Denmark Riso Natl Lab Roskilde Denmark DK-4000 tl Lab, DK-4000 Roskilde, Denmark
Titolo Testata:
SCIENCE OF THE TOTAL ENVIRONMENT
fascicolo: 2-3, volume: 246, anno: 2000,
pagine: 285 - 291
SICI:
0048-9697(20000210)246:2-3<285:IIHTAS>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
ENG
Soggetto:
I-129 CONCENTRATIONS; MAMMALIAN THYROIDS; NEUTRON-ACTIVATION; NUCLEAR; ISOTOPES; ACCIDENT; I-131;
Keywords:
I-129; human thyroid; seaweed; neutron activation analysis;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
28
Recensione:
Indirizzi per estratti:
Indirizzo: Hou, XL Riso Natl Lab, POB 49, DK-4000 Roskilde, Denmark Riso Natl Lab POB49 Roskilde Denmark DK-4000 0 Roskilde, Denmark
Citazione:
X.L. Hou et al., "Iodine-129 in human thyroids and seaweed in China", SCI TOTAL E, 246(2-3), 2000, pp. 285-291

Abstract

The concentrations of I-129 and the ratios of I-129/I-127 in normal human thyroids collected in Tianjin, China, and some seaweed samples from the Chinese coast were determined by neutron activation analysis. The mean I-129/I-127 ratio in these thyroids was found to be 1.13 x 10(-9), which is two orders of magnitude higher than the level of the pre-nuclear era, but one order of magnitude lower than the level in Europe in the post-nuclear era. There is no significant difference between the ratio of I-129/I-127 in the thyroids for the post-nuclear era from China and other areas, which are considered not to have been directly exposed to 129I emission from a nuclear source, such as Chile, Taiwan and Tokyo. The mean I-129/I-127 ratio in seaweed from the Chinese coast is 2.35 x 10(-10), approximately two orders of magnitude higher than in seaweed collected in the pre-nuclear age, and similar to that from locations without direct exposure to the emission from nuclear installations, influenced only by global fallout. This indicates that the I-129 level in China is within the global fallout background level. (C) 2000Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 24/11/20 alle ore 14:09:52