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Paradigm Challenge  /  Economics

The 'safe' alternative to toxic forever chemicals is actually more poisonous than the original.

When the carcinogen PFOA was banned, the industry switched to a replacement called HFPO-TA, labeling it a safer option. But new research on earthworms shows this 'safe' alternative is actually more toxic and causes higher levels of oxidative stress. It’s a classic case of 'regrettable substitution,' where one poison is swapped for another that we understand even less about. This means the products in our homes labeled as 'PFOA-free' might actually be carrying something even more dangerous. It’s a wake-up call that 'new' doesn't mean 'safe' when it comes to the chemicals in our environment. We're essentially trading one health crisis for another.

Original Paper

Toxicity differences between HFPO-TA and PFOA, and combination with PP-MPs: evidence against HFPO-TA as a safe PFOA alternative

Chengbo Lu, Tifen Shan, Xiaole Wang, Bing Li, Zhongkun Du, Jinhua Wang, Jun Wang, lusheng zhu

SSRN  ·  6576138

Perfluorooctanoic acid (PFOA) has been banned worldwide due to its high environmental persistence and biological toxicity, and hexafluoropropylene oxide trimer acid (HFPO-TA) has become the most widely used alternative. However, the safety of HFPO-TA and its combined toxic effects with polypropylene microplastics (PP-MPs) remain unclear, posing challenges for soil pollution risk management. This study for the first time compared the toxicity of HFPO-TA and PFOA to Eisenia fetida under the same e