Posts

Aquatic Life Benchmarks for Registered Pesticides

This original announcement was published by the EPA on September 29, 2020. Click here for more!

Today, the U.S. Environmental Protection Agency (EPA), in collaboration with the California Department of Pesticide Regulation and the U.S. Geological Survey, released an updated aquatic life benchmarks table, which includes both new and updated aquatic life benchmark values.

Aquatic life benchmarks are estimates of the concentrations below which pesticides are not expected to present a risk of concern for freshwater organisms. State, tribal and local governments use these benchmarks in their interpretation of water monitoring data.

Comparing a measured concentration of a pesticide in water to an aquatic life benchmark can be helpful in interpreting monitoring data and in identifying and prioritizing monitoring sites that may require further investigation.

The updated aquatic life benchmarks represent newly registered pesticides or new values for previously registered pesticides and selected degradates, or new registrations. EPA’s goal is to add to these benchmarks on an annual basis; the last update was published September 30, 2019.

EPA based these benchmarks on toxicity values from scientific studies that the Agency reviewed and used in publicly accessible ecological risk assessments in support of regulatory decisions for pesticides. The table directly links the source documents for each of the benchmarks.

View the updated table on our webpage.

EPA Releases Aquatic Life Benchmarks for Freshwater Species

This original announcement was published by the EPA on October 1, 2019 and can be access here

Today, EPA released the revised Aquatic Life Benchmarks table, which includes both new and updated aquatic life benchmark values.

State, tribal and local governments use these benchmarks in their interpretation of water monitoring data. Comparing a measured concentration of a pesticide in water to an aquatic life benchmark can be helpful in interpreting monitoring data and in identifying and prioritizing sites and pesticides that may require further investigation.

New aquatic life benchmarks represent newly available toxicity endpoints for registered chemicals. EPA’s goal is to add to these benchmarks on an annual basis.

EPA based these benchmarks on toxicity values found in scientific studies that the agency reviewed in support of publicly available ecological risk assessments and regulatory decisions. The table directly links the source documents for each of the benchmarks.

For more information click here.