It has been nearly one year since IISG set sail on Lake Michigan to sample for plastic pollution. Since then, Sam Mason, a chemist from State University of New York Fredonia, and her research team have been hard at work analyzing those water samples. The initial results are revealed in the latest edition of IISG’s interview series UpClose.  
 
In this issue, Mason talks about her ongoing work to quantify plastic pollution in the Great Lakes for the first time. In addition to the Lake Michigan results, Mason discusses plastic levels in the other four lakes, explains how plastics could impact aquatic wildlife, and suggests additional research needed to understand this emerging contaminant. 
 
This is the sixth edition of UpClose, which takes readers behind the scenes of the latest research on pharmaceuticals and personal care products. Each interview targets a different component of PPCP research—everything from what happens to pharmaceuticals when water is treated to what bacterial resistance could mean for other aquatic wildlife living in urban rivers. Readers also get an insider’s view of the complex, and sometimes tricky, process of conducting field studies, and the potential implications of research on industries and regulations.
 
Read previous issues of UpClose at unwantedmeds.org. For print copies, contact Pollution Prevention Program Specialist Laura Kammin.

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Summer on Lake Michigan is the best, and a little prep makes it even better. 🌊☀️Dangerous currents near piers and breakwalls surprise even strong swimmers. Here's what to know:✅ Swim in designated areas↔️ Caught in a current? Swim to the side — not against it — then to shore🆘 In danger? Call for a life ringSave this post and share it with your swim crew. 👇More Lake Michigan safety resources: link in bio 🔗
Got a research idea worth a bigger room? The 2026 State of Lake Michigan Meeting is accepting proposals for symposia and workshops, and we want to hear yours!📅 Nov. 4–6 | Michigan City, IN⏰ Proposals due June 1 at 1 PM ETHelp shape what the Great Lakes research community discusses this year.🔗 Submit at the link in bio.
To every educator who has brought the Great Lakes into their classroom, thank you. 🍎Your curiosity is contagious. Your lessons last. And the students who learn to love these waters? They’ll protect them.Happy Teacher Appreciation Week from all of us at IISG.