The majority of commercially available BPA-free plastic materials and products "readily leach chemicals having estrogenic activity (EA)," according to a new study published in the Environmental Health Perspectives (EHP) journal.
Researchers from PlastiPure, CertiChem, and Georgetown University tested products made from polyethylene (PE), polypropylene (PP), polystyrene (PS), polyethylene terephthalate (PET), polylactic acid (PLA), polyethylene terephthalate glycol (PETG), and polyethersulfone (PES) and said that all show detectable EA levels.
PlastiPure (Austin, TX) has created and markets a line of plastics it says are EA free called PlastiPure-Safe. CertiChem, also based in Austin, develops testing assays for detecting hormonal activity in different materials, including plastics. At the 2010 SPE Polyolefins conference in Houston, PlastiPure presented preliminary testing that it says showed EA in various plastics....