On June 3, 2024, the EPA’s Office of Water (OW) developed acute aquatic life screening values for two widely distributed rubber-tire associated compounds, 6PPD-Quinone (6PPD-q) and 6PPD. The screening values are based on the latest scientific knowledge about the short-term (acute) toxicity of 6PPD-q and 6PPD to aquatic organisms, including sensitive species like coho salmon, in freshwaters of the U.S.
For more information, please visit: https://www.epa.gov/wqc/aquatic-life-criteria-and-methods-toxics#acute