California is preparing to be the first place in the world to set guidelines for reducing microplastics in drinking water. There are questions about the need for these particular guidelines and challenges involved in devising methods that will be effective in reducing human exposure to the tiny but potentially harmful bits of plastic in the environment. Still, Rolf Halden, a Fulton School professor and director on ASU’s Biodesign Center for Environmental Heath Engineering, says the amount of microplastics waste continues to grow and it is becoming increasingly critical to take actions to reduce them to prevent more contamination. If the “soup of plastics” we live in gets thicker, Halden says, the dangers they pose will become more serious and more difficult to eliminate. The article also appeared in the Market Research Telecast, the Lost Coast Outpost and the Desert Sun.