The Use of Background Data in Risk Assessments: Introductory Comments.

Presents introductory comments on the papers discussing the use of background data in risk assessments. Publication of a policy statement and implementation guidance by the U.S. Environmental Protection Agency (EPA); Summary of the issues addressed in the papers like the differences in perspective of the regulatory and regulated communities with regard to its use; Conclusion of lack of consensus about the usage of background data, due to technical and political considerations.