The IAA One Minute Blog

Scientists may have a safer way to destroy PFAS, also known as “forever chemicals.”

Destroying PFAS

PFAS, which stands for polyfluoroalkyl substances, is a class of synthetic chemicals used in the manufacture of consumer products. PFAS can linger permanently in the air, water and soil, which is why they are often referred to as “forever chemicals.”

For years scientists have tried to find ways to break down PFAS. A new study shows that PFAS can be destroyed using two relatively harmless chemicals: sodium hydroxide (lye) and dimethyl sulfoxide (medication for bladder pain).

The scientists added PFAS molecules to a solution of lye and dimethyl sulfoxide and exposed them to temperatures of up to 248 degrees Fahrenheit. The chemicals degraded into fluoride ions and other harmless byproducts.

Previously, the only way to break down PFAS was to expose the particles to extremely high temperatures in an incinerator. But that process can still release harmful chemicals into the environment. The new method appears to be safer and more energy efficient.

Dangers of PFAS

PFAS were invented in the 1930s and used in nonstick and waterproof coatings for consumer goods starting in the 1940s and 50s. Since then, the chemicals have been found in all types of household items, including carpets, cookware and personal care products.

The chemicals are associated with:

• High cholesterol
• Increased risk of certain cancers
• Low birthweight
• Thyroid disease

Currently, PFAS can be filtered out of water but then need to be destroyed somehow. If the chemicals are dumped in a landfill or tossed in an incinerator, they can still pollute the environment.

What IAA has to Say

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