PFAS are toxic chemicals that are used commonly in packaging and other household products. They tend to accumulate in the environment rather than break down, so PFAS contamination is common in water systems throughout the US. This is particularly dangerous because PFAS consumption has been linked to increased risk of cancer.

Last month, PFAS containing foam spilled into the Farmington River in Connecticut, near Windsor. Residents were upset and concerned about the implications of the contamination for their water systems.

One of the most common uses of PFAS is in the foam firefighters use in order to put out fires. While there are alternatives products, firefighters are currently required to use PFAS foam in their trucks. The spill in question was caused by a firefighting hangar at Bradley International Airport dumping foam into the river. <Read more>