The objective of this course is to train students to integrate the best currently available scientific information to complete a risk assessment report. At first, students will be asked to identify a topic of their own interests, to search the currently available toxicological data and environmental monitoring or food residue data. and to conduct hazard identification, dose-response assessment, and risk characterization by themselves. If neccessary, additonal environmental modeling and statistical modeling courses will be provided to help students upgrade their assessment skills. A 300-word and 1000-word English abstracts will be prepared for submission to the annual meeting of the Society for Risk Analysis. The final report will be prepared by following a specific journal format and intended to be sumbitted to this jounal.