Risk Assessment Forum White Paper: Probabilistic Risk Assessment Methods and Case Studies [open pdf - 5MB]
"Throughout many of the U.S. Environmental Protection Agency's (EPA) program offices and regions, various forms of probabilistic methods have been used to answer questions about exposure and risks to humans, other organisms and the environment. Risk assessors, risk managers and others, particularly within the scientific and research divisions, have recognized that more sophisticated statistical and mathematical approaches could be utilized to enhance the quality and accuracy of Agency risk assessments. Various stakeholders, inside and outside of the Agency, have called for a more comprehensive characterization of risks, including uncertainties, to improve the protection of sensitive or vulnerable populations and lifestages. [...] The goal of these publications is not only to describe potential and actual uses of these tools, but also to encourage their further implementation in human, ecological and environmental risk analysis and related decision making."
Environmental Protection Agency: http://www.epa.gov/