Karla Ríos-Bonilla and Diana Aga (IMAGE) University at Buffalo Caption University at Buffalo PhD student Karla Ríos-Bonilla (left) and Diana Aga, director of the UB RENEW Institute, are authors on a study that assessed the mixture toxicity of per- and polyfluoroalkyl substances (PFAS), also known as forever chemicals. Credit Photo: Meredith Forrest Kulwicki/University at Buffalo Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.