TIME TRENDS AND SOURCE FOR DIOXINS IN SEDIMENTS IN A LARGE-SCALE RICE PRODUCTION AREA, NIIGATA, JAPAN Publication Attachment: 02-251.pdf Authors: Sakai, Mizuki, Kajihara, Hideo, Fukumura, Kinumi, Kobayashi, Jun, Ohizumi, Manabu, Takahashi, Yukio, Nakadaira, Hiroto and Yamamoto, Masaharu Year: 2002