This guidance directs each EPA office to take into account cumulative risk issues in scoping and planning major risk assessments and to consider a broader scope that integrates multiple sources, effects, pathways, stressors and populations for cumulative risk analyses in all cases for which relevant data are available.
- Memorandum About Cumulative Risk Assessment Guidance-Phase I Planning and Scoping (PDF)(2 pp, 25 K, July 3, 1997)