奈良教育大学紀要 第56 巻 第 1 号(人文・社会)平成19年 Bull. Nara Univ. Educ., Vol. 5 6 , No. 1 ( Cult. & Soc. ) , 2007 1 15 公害病否定の社会学的考察 −カドミウム腎症を事例に− 渡 辺 伸 一 奈良教育大学社会科教育講座(社会学) (平成19年5月7日受理) Why is Kidney Dysfunction Caused by Cadmium (Cadmium Nephropathy) not Officially Recognized as a Pollution-related Disease by the Japanese Government ? WATANABE Shinichi ( Department of Sociology, Nana University of Educatio