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Probabilistic Risk Assessment

Probabilistic risk assessments typically incorporate spatial and temporal characterization of both exposure and effects to quantify variability and uncertainty in an assessment. Waterborne has a wealth of experience in performing probabilistic risk assessments for ecological and human health endpoints.

For example, we have performed many studies using spatial approaches to examine the natural variability in the agricultural landscape and to create distributions of potential exposure in the agricultural landscape for aquatic exposure assessment. This information is used to generate probabilistic inputs for pesticide aquatic exposure modeling. The knowledge gained from these studies is useful in reducing the uncertainty of some aspects of exposure assessment which aids the regulatory decision-making process.

Waterborne staff have also worked to advance the science of risk assessment by participating in the US Environmental Protection Agency’s Ecological Framework for Risk Assessment Methods (ECOFRAM) and the European equivalents (EUPRA and EUFRAM).

We have developed numerous tools to assist in conducting probabilistic risk assessments, including the Risk Assessment Dose and Recovery (RADAR) software used to characterize exposure events in terms of frequency of occurrence.

Publications describing some of our projects can by found on the Other Publications page.