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PFAS: The Pollutants That Just Won’t Quit
These perfluoroalkyl and polyfluoroalkyl substances, handily abbreviated as PFAS, have earned the ominous nickname ‘forever chemicals’. Unlike trendy buzzwords, these actually describe their dark superpower: astonishing persistence in the environment. While we already knew about microplastics inevitably scattering from the highest mountain peaks to the ocean’s greatest depths, PFAS are proving even more omnipresent.
According to a study by Stockholm University (Sweden), published in the journal Environmental Science & Technology on August 2, 2022, PFAS have made their way across soils, waterways, and right into the world’s oceans. And, as the researchers highlight, their spread is impressively—or rather alarmingly—comprehensive.
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Why You Can’t Trust Rainwater Anymore
The problem is now so severe that PFAS turn up even in rainwater and snow, no matter where you are on Earth. As the study states:
“Regardless of where we find ourselves, rainwater should not be consumed.”
It’s a bold conclusion, but unfortunately, well justified. PFAS have been linked to a laundry list (though unfortunately, not the actual cleaning of laundry) of severe health issues:
- Certain cancers
- Infertility problems
- Pregnancy complications
- Immunodeficiencies
- High cholesterol
For children, the list grows even more concerning with potential learning and behavioral problems.
The Inescapable Reach of PFAS
The study leaves no room for ambiguity: despite a general decrease in PFAS concentrations over recent decades, the levels of some PFAS are still far too high, making water unsafe to drink. Researchers took to both the laboratory and the great outdoors to measure PFAS in the Earth’s atmosphere. Surprisingly (or perhaps predictably, given the chemicals’ resilient reputation), levels of certain PFAS have not actually dropped, even though 3M, the leading manufacturer, has begun phasing them out. To quote the study:
“Given how persistent PFAS are, this isn’t surprising.”
Escaping the Cycle? Not So Fast…
The research further points out that PFAS make their way from ocean water to marine air via sea spray—a critical reason for their stubborn presence in the atmosphere. This means PFAS are engaged in a never-ending global cycle, constantly reentering the air and water, and consistently exceeding the limits set by worldwide water quality regulations meant to protect our health.
Unfortunately, the researchers aren’t holding out much hope for an easy fix. They point out that there’s very little wiggle room left. According to them, international PFAS limits need urgent revision, but regrettably, those thresholds have already been breached around the globe.
As someone with a geography background who loves to weave a human dimension into my research, I’m passionate about Asia, travel, film, and music—and I hope this article has piqued your curiosity about this critical issue as much as it did mine.
