![Water-Quality Canaries: Using Mussels to Detect Contaminants](https://cole-tpomag.imgix.net/https%3A%2F%2Fwww.tpomag.com%2Fuploads%2Fimages%2Fminnesota-mussels-wastewater-3-w300.jpg?crop=focalpoint&fit=crop&fp-x=0.5&fp-y=0.5&h=620&ixlib=php-1.1.0&q=75&w=1024&s=de65e6436a2a7454baf392f9d29809c3)
In an era of increasingly sophisticated technology, two treatment plants on the Mississippi River are experimenting with what might be the original water-quality gauge: mussels.
Water departments in Minneapolis, Minnesota, and Moline, Illinois, are using native freshwater...