The EPA decided its scientists were overstating the risks and gave Chevron the go-ahead to make the new boat fuel ingredient at its refinery in Pascagoula, Mississippi.
Poor Mississippi.
They are trying to save money by adding a solvent mixture refined from recycled plastic. But since the feedstock contains a wide variety of junk (called “UVCB substances" or “Substances of Unknown or Variable composition, Complex reaction products or Biological materials”) the resulting additive is a very complex mixture, including many untested and/or potentially toxic chemicals.
Nothing new, sadly.
The same crap with Volkswagen, who put the health of all humanity at risk for even more money (Diesel scandal).
As long as people still buy their stuff nothing will change.
This is sort of new. IIRC this is like 1000x more toxic than what the EPA would normally allow.