Case Study of Nano-Ag

摘要

EPA is proceeding cautiously on at-tempting to understand if the toxic effects of nanosubstances differ from the better known effects of the same substances in conventional particle size.rnCurrently, the Agency is conducting a series of case studies intended as a starting point in a process to identify and prioritize possible research direc-tions to support future assessments of nanomaterials.rnThe first case study addressed titanium dioxide used for drinking water treat-ment and topical sunscreen. EPA has now released a draft case study on the use of engineered nanoscale silver (nano-Ag) as an agent in disinfectant spray products.