| environmental and food contamination with pcb's in japan. | in japan "yusho", i.e., poisoning caused by ingestion of rice oil contaminated with pcb's, broke out in october 1968, and produced more than 1200 officially certified cases. nevertheless, it was only regarded as a kind of food poisoning and its connection with environmental and biological contamination was only imperfectly taken into consideration. finally, in the autumn of 1970, two study groups, from the ehime university and the kyoto city hygienic institute, reported on the pcb contamination ... | 1975 | 808853 |
| migration of (14)c in the paddy soil-to-rice plant system after (14)c-acetic acid breakdown by microorganisms below the plow layer. | migration of (14)c derived from (14)c-acetic acid was examined by using soils sampled from paddies in four administrative areas in japan (aomori, yamanashi, ehime and okinawa) and rice plant in a tracer experiment to understand the fate of (14)c in the paddy soil-to-rice plant system. the loss of (14)c radioactivity levels derived from (14)c-acetic acid was caused by soil microorganism breakdown. a part of the (14)c fixation to soil was caused by microbial assimilation into the fatty acid fracti ... | 2010 | 19896253 |