South Florida researchers have found that PFAS, often called “forever chemicals,” are present in the region’s air and may pose health risks. The study was led by Natalia Soares Quinete, associate professor of chemistry and biochemistry, and Ph.D. student Maria Guerra de Navarro from Florida International University’s Institute of Environment.
The research indicates that some airborne PFAS attach to very fine particles capable of reaching deep into the lungs and entering the bloodstream. These chemicals are already known to be present in water, soil, food, and consumer products. According to the researchers, their findings point to a previously overlooked threat that needs further investigation and potentially stronger regulations.
“Our data can help us determine how much enters the lower respiratory tract and then the circulatory system and how much that could contribute to their accumulation and, eventually, disease,” Quinete said. “Men, who tend to inhale more air, may face slightly higher exposure.”
Although immediate risks appear low based on current levels detected in South Florida’s air, the long-term effects remain uncertain. Guerra de Navarro noted that Miami does not have obvious pollution sources but PFAS can still arrive from other areas via air currents.
“They’re definitely arriving here,” she said, noting their presence is largely going unnoticed.
The study identified around 30 types of PFAS linked to everyday household products such as cleaning agents, skincare items, and food packaging. The researchers emphasize that individual choices play a role in environmental contamination.
“What we use daily can impact both our environment and our health,” said Guerra de Navarro. “Part of the solution is being mindful of what we buy and how it affects our surroundings.”
Quinete’s team is now examining how PFAS behave in the atmosphere through processes like oxidation and aerosol formation. Guerra de Navarro is expanding her research into stormwater systems as another route for these chemicals’ spread.
“We continue this work to expand our understanding,” Quinete said. “The goal is to get a complete picture of how these chemicals behave.”
Their work highlights gaps in current knowledge about airborne PFAS but offers a framework for future studies on environmental movement and human health impacts.
