Risk Assessment IDentification and Ranking (RAIDAR) Model

RAIDAR is an evaluative, regional-scale, mass balance model for screening level exposure and risk assessment. The model simulates chemical fate and transport in the environment, bioaccumulation in a range of species, food web bioaccumulation, far-field exposures to humans and representative ecological species, and effects (risk). The general intent of the model is to screen and prioritize large numbers of chemicals based on hazard, exposure and risk assessment objectives for more comprehensive, higher-tiered assessments.

RAIDAR has been used for high-throughput risk assessments for Environment Canada to address legislation outlined under the Canadian Environmental Protection Act 1999. The RAIDAR model has been used in regulatory programs in Canada and is part of the US EPA’s ExpoCast System for the Empirical Evaluation of Models (SEEMS) human exposure framework (https://www.epa.gov/chemical-research/rapid-chemical-exposure-and-dose-research).

Full details of the model are available in the following publications:

– Arnot, J.A.; Mackay D. 2008. Policies for chemical hazard and risk priority setting: Can persistence, bioaccumulation, toxicity and quantity information be combined? Environ. Sci. Technol. 42: 4648-4654. DOI: 10.1021/es800106g

– Arnot, J.A.; Mackay, D.; Webster, E.; Southwood, J. 2006. Screening level risk assessment model for chemical fate and effects in the environment. Environ. Sci. Technol. 40: 2316-2323. DOI: 10.1021/es0514085

RAIDAR Ver.2.00 (Released March 2012)

RAIDAR Ver.2.01 (Released July 2012 to address a minor display error in Ver.2.00)

RAIDAR Ver.2.02 (Released 2014 to address .csv output error for Level II environmental fugacities)

RAIDAR Ver.2.99(BETA) (Released May 2019 for SETAC Training Course)

RAIDAR Ver.3.0 (Coming Soon)

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