The Environmental Protection Agency is preparing to conduct case-specific ecological and human health risk assessments, including for occupational exposures, of nanosilver ingredients in several pesticides, suggesting a new approach to addressing the substances after struggling to craft a regulation requiring registrants to disclose the presence of the materials as a first step in possible regulation. The move comes as OSHA stakeholders continue exploring the potential need for regulatory efforts to oversee nanomaterials. EPA on July 6 created a new regulatory docket to take comment on a plann
December 29, 2025