2005.4-2006.3 Yearbook of NILIM
Research Summary


Water Quality Control Department

Reference Number Y050204
Title Research on Risk Evaluation of Chemical Substances in Water Environment
Start-End Date 2003.4-2006.3
Division Director, Water Quality Control Department
Research Coordinator for Water Quality Control
Wastewater and Sludge Management Division
River Environment Division Environment Department
Research Coordinator for Housing Information System
Author Director, Water Quality Control Department, Kenji Sakai
Research Coordinator for Water Quality Control , Toshiaki Shimizu
Wastewater and Sludge Management Division,
Head, Mizuhiko Minamiyama
Reseacher, Hiroki Yamagata
River Environment Division Environment Department,
Senior Researcher, Katsuhiro Onuma
Reseacher, Hiroyuki Suzuki
Guest Research Engineer, Takeshi NOMOTO
Research Coordinator for Housing Information System, Hideyuki Kobayashi
Summary This study aimed to grasp the amount of chemical substances discharged into river basins and the behavior in the water environment based on PRTR information; to perform a risk assessment based on the current state; to share the results with stakeholders related to the areas; and to establish a risk management method for the basins.