A Size-Based Contaminant

This episode discusses the issue of microplastics in the Great Lakes, featuring experts from the International Joint Commission (IJC) and universities. Dr. Rebecca Rooney and Eden Hadley explain the standardized definition of microplastics, ranging from 5 millimeters to 1 micron, and their sources, including nurdles, tire wear, and synthetic clothing fibers. The IJC's report highlights the need for standardized monitoring and harmonized methods to assess microplastic concentrations accurately. Recommendations include listing microplastics as a contaminant of mutual concern and promoting life cycle responsibility for producers. Individual actions, such as using microfiber filters in washing machines, can also help reduce microplastic pollution.

Episode Links:
https://ijc.org/sites/default/files/SAB_MicroplasticsReport_2024.pdf

https://ijc.org/en/sab/monitoring-ecological-risk-assessment-and-management-microplastics-laurentian-great-lakes

https://ijc.org/sites/default/files/SAB_MicroplasticsRpt_SuppMaterialsA.pdf

--

Show Credits:

Host: Stuart Carlton

Senior Producer: Carolyn Foley

Producers: Megan Gunn and Renie Mills

Associate Producer and Fixer: Ethan Chitty

Editor: Sandra Svoboda

Podcast Art by: Joel Davenport

Music by: Stuart Carlton