Portal de Periódicos da CAPES

Rice as the most influential source of cadmium intake among general Japanese population

2003; Elsevier BV; Volume: 305; Issue: 1-3 Linguagem: Inglês

10.1016/s0048-9697(02)00475-8

1879-1026

Teruomi Tsukahara, T. Ezaki, Jiro Moriguchi, Katsuya Furuki, Shinichiro Shimbo, Naoko Matsuda‐Inoguchi, Masayuki Ikeda,

Environmental Justice and Health Disparities

The objective of the present study is to examine whether rice is still a leading source of cadmium (Cd) burden among general populations in Japan. For this purpose, 10 prefectures were selected from all over Japan (including the northern- and southern-most Hokkaido and Okinawa prefecture, respectively). Cadmium levels in urine of never-smoking women (corrected for creatinine; Cd-Ucr) were compared with the rice- and wheat product-based Cd intake, which were estimated from Cd contents in rice and wheat (in the forms of bread, noodle and flour) consumed by residents in the areas, and per-capita daily consumption of rice and wheat. Stepwise multiple regression analysis taking Cd-Ucr as a dependent variable and rice- or wheat product-based Cd intakes as independent variables showed that rice was the most influential and almost exclusive variable with a partial correlation coefficient of 0.770–0.832, explaining 59–69% of total variation in Cd-Ucr. The effects of other sources including wheat were essentially negligible.