IISG’s Laura Kammin and Anjanette Riley set sail today on a mission to find plastics in Lake Michigan. The trip is a part of a larger effort to determine if the plastics and microplastics that have been found in the world’s oceans are an issue in the Great Lakes too. Sampling kicked off last year with research trips on Lakes Huron, Superior, and Erie, and the findings came as a bit of a surprise – millions of tiny plastic particles floating in the water in even higher concentrations than in the Great Pacific Garbage Patch.
 

The first round of sampling revealed that the Lakes are home to between 1,500 and 1.7 million plastic particles per square mile, with Lake Erie housing the largest concentrations. Dr. Sherri “Sam” Mason of the State University of New York (SUNY) at Fredonia, Dr. Lorena Rios-Mendoza of University of Wisconsin, and Dr. Marcus Erikson of 5 Gyres Institute have determined that much of the plastic they found was actually microbeads, found in many brands of toothpaste and facial and body scrubs. These tiny pieces of plastic are less than a millimeter in diameter, much too small to be filtered out by wastewater treatment facilities before that water is released into nearby lakes and rivers.

 
Anjanette and Laura, along with researchers from SUNY at Fredonia and 5 Gyres Institute, are on Lake Michigan this week to see how the plastic load there compares to the other Great lakes. The crew will collect approximately 20 samples between now and August 10 as they zigzag their way across southern Lake Michigan. Dr. Mason will process the samples in the coming months. The research team also plans to extend the project to Lake Ontario and get a second round of samples from Lake Erie later this summer.

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📢 Show Your Support for Sea Grant! 📢Continued federal funding for Sea Grant in FY26 is crucial, and we need your help to demonstrate the nationwide support for these essential programs.🖊️ Sign the letter urging Congress to continue funding Illinois-Indiana Sea Grant and all 34 state Sea Grant programs:🔗 https://forms.gle/7sPGHGyh8j8a7vfGA or link in bio
Exciting news! The call for sessions for the 2026 Emerging Contaminants in the Environment Conference has been extended! We are excited to offer the opportunity to propose a speaker or panel session during the 2026 Emerging Contaminants in the Environment Conference April 28-29.  The conference will feature traditional 15-minute presentations and a poster session on the latest in emerging contaminant research, policies, and outreach in the soil, water, and air.The deadline to propose a session is September 30, 2025.Learn more at go.illinois.edu/ecec or the link in bio
Stay safe and have fun this Fourth of July with these 5 water safety tips! Click the link in bio to learn more ways to keep yourself and others safe as you enjoy the Lake Michigan beaches this holiday.
Four science educators from Illinois and Indiana have been selected for the 2025 Shipboard Science Immersion on Lake Michigan July 7-13. The educators will spend a full week alongside researchers aboard the EPA research vessel Lake Guardian. Afterwards, they will bring Great Lakes science back to their classroom. Learn more and meet the four incredible teachers representing Illinois and Indiana at the link in bio.
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