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Pesticide Inert Risk Assessment Tool PDF Print E-mail
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What Does PIRAT Do?
Provides screening level estimates of exposure and risk to pesticide inert ingredients that are used in a residential setting. This includes assessing both indoor and outdoor residential uses of pesticide products. PIRAT will assess acute and chronic risks and will be able to assess adults and children separately.

How Does PIRAT Work?
PIRAT calculates human dose rate and Margin of Exposure (MOE) for a wide variety of chemical exposure routes. The model is organized by the type of pesticide product, for example liquid ready-to-use or granular products, as well as by application technique, such as spray can or drop-type spreader.

What Do I Need to Use PIRAT?
In order to run the PIRAT model, the user must have the following information: the formulation type of the pesticide product (liquid ready to use, powder, etc.); the function of the inert ingredient in question (wetting agent, solvent, dye, etc.); an appropriate toxicity endpoint (typically a No Observed Adverse Effect Level - NOAEL); an understanding on how the pesticide product is used; the equipment used to apply the pesticide product; and an application rate.

How Are PIRAT Data Used?
The PIRAT output is a summary table which highlights the dose and MOE for residential exposures estimated for each model run. Risk assessors can then use the MOEs estimated by PIRAT in evaluating any possible health concerns for the inert ingredient in question.

What Is PIRAT's Status and Availability?
The Beta-version of PIRAT is currently available from this web page, please see link below. PIRAT has not yet been peer reviewed. A formal peer review by experts outside of the EPA is schedule for FY2004. This model was developed under contract by Versar, Inc. for the EPA Office of Pesticide Programs.
PIRAT can be downloaded and installed using

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