| Literature DB >> 15935683 |
Setsuko Shibata1, Eiko Kawano, Takeshige Nakabayashi.
Abstract
(14)C in rice grains is a useful tracer of atmospheric (14)C(CO(2)). (14)C measurement in rice grains for 17 years during 1982--1999 reveals the following. There is negative correlation between Delta(14)C and the population densities of localities in Japan. Under-populated areas in the northern area of Japan and Okinawa remained clean in the 1990s. The (14)C(CO(2)) decline rates at those areas are near to that of Shauinsland. A latitudinal effect due to Chinese nuclear tests is observed in 1982. Small Seuss effects is observed at the middle latitudes in East Asia after 1995.Entities:
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Year: 2005 PMID： 15935683 DOI： 10.1016/j.apradiso.2005.03.011
Source DB: PubMed Journal: Appl Radiat Isot ISSN： 0969-8043 Impact factor: 1.513