Scientists find simple, safe method to destroy ‘forever chemicals’
The Hindu
Chemists said they had finally found a breakthrough method to degrade these polluting compounds, referred to as PFAS, using relatively low temperatures and common reagents
“Forever chemicals” used in daily items like nonstick pans have long been linked to serious health issues — a result of their toxicity and extreme resistance to being broken down as waste products.
Chemists in the United States and China on Thursday said they had finally found a breakthrough method to degrade these polluting compounds, referred to as PFAS, using relatively low temperatures and common reagents.
Their results were published in the journal Science, potentially offering a solution to a longstanding source of harm to the environment, livestock and humans.
“It really is why I do science — so that I can have a positive impact on the world,” senior author William Dichtel of Northwestern University told reporters during a news conference.
PFAS, or per- and polyfluoroalkyl substances, were first developed in the 1940s and are now found in a variety of products, including nonstick pans, water-resistant textiles and fire suppression foams.
Over time, the pollutants have accumulated in the environment, entering the air, soil, groundwater and lakes and rivers as a result of industrial processes and from leaching through landfills.
A study published last week by Stockholm University scientists found rainwater everywhere on the planet is unsafe to drink because of PFAS contamination.