PFASs are a class of human-made chemicals which includes Per- and Polyfluoroalkyl substances.
People and industry use tens of thousands of chemicals. A vast array of these chemicals have been found in our environment, where we consider them contaminants of emerging concern or CECs.
One of the greatest threats to the quality and health of Great Lakes and its tributaries is excess chemicals, fertilizers, and sediment from irresponsible agricultural practices.
The Great Lakes contain 20% of the earth’s fresh surface water — to protect this resource for future generations, we must take care and manage them properly.
The Great Lakes are national treasures.