In order to continue to protect our nation’s wildlife, especially species that have been directly impacted by water and air pollutants, the EPA’s Endocrine Disruptor Screening Program (EDSP) has announced the release of a final guidance document.

The document, entitled Weight-of-Evidence: Evaluating Results of EDSP Tier 1 Screening to Identify the Need for Tier 2 Testing, has recently been revised according to various public and peer review comments that have been presented to the EPA.

In recent years, the EPA has been focused on continuously protecting the endocrine systems of thousands of species throughout the United States’ waterways, forests, and other natural habitats.

Through this guidance document, scientists and researchers will receive a variety of approaches that can be utilized as they assess the results of Tier 1 screening assays, which will hopefully verify whether or not pollutants, including chemicals such as pesticides and herbicides, negatively impact the functionality of species’ endocrine systems.

Such pollutants may interact with species’ estrogen and androgen levels, leading to significant, long-lasting, and, perhaps, even deadly health consequences. All findings from the Tier 1 screening assays will used for further testing in the future, including possible Tier 2 testing.

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