TSCA authorizes EPA to treat chemicals as a “category” if they are “similar ... of their similarities in persistence, mobility, and toxicity and the potential for all PFAS to cause the ...

The EPA uses the six-pack studies to classify pesticides into four categories according to their toxicity. The most dangerous pesticides are category I. Products in this category have the most ...

Toxicologists in the advocacy arena suggest that may be the case after the U.S. Environmental Protection Agency (EPA) released draft toxicity analyses this week for two well-studied individual ...

EPA concluded that for 67 percent of the 249 technical chemicals, the results of both oral and dermal acute toxicity studies fall within the same Toxicity Category. For 32 percent of the chemicals ...

The EPA said that it had granted a petition filed by six environmental groups calling upon the agency to test the toxicity of 54 ... tested directly under the category-based strategy.

must start testing the toxicity of their products, according to a new decision recently announced by the U.S. Environmental Protection Agency. EPA's ruling is a partial victory to six North ...

GenX has been linked to kidney and liver toxicity, immune and development effects and cancer in rats, according to an EPA toxicity assessment. Emily Donovan, who lives near Wilmington, North ...

WASHINGTON (AP) — The Environmental Protection Agency is aiming to reduce and eventually eliminate the use of mammals to test the toxicity of ... signed Tuesday by EPA Administrator Andrew ...

NPR's Elizabeth Shogren reports. ELIZABETH SHOGREN reporting: EPA Administrator Steve Johnson says that initial testing by his agency shows that levels of harmful bacteria in the floodwaters are ...

On Jan. 29, Dr. Robert Haley, the chief epidemiologist at UT Southwestern, appealed to the EPA during an Arlington meeting to urge the feds to endorse a tougher federal ozone standard. The average ...

The judges also found the EPA disregarded its Cancer Guidelines by disregarding evidence of glyphosate’s high-dose toxicity, simply because most humans won’t be exposed to doses above a certain range.

WASHINGTON (AP) — The Environmental Protection Agency is aiming to reduce and eventually eliminate the use of mammals to test the toxicity of ... signed Tuesday by EPA Administrator Andrew ...