@Arkil Tritan jest kontrowersyjny, pojawiało się kilka badań, które podważają jego bezpieczeństwo.
Eastman, a $7 billion company that was spun off from Eastman Kodak in the 1990s, assured its corporate customers that it had done extensive safety testing on Tritan. But its methods were questionable. According to internal Eastman documents, in 2008 Eastman signed a two-year contract with Sciences International, another product defense firm that had played a key role in the tobacco industry’s scientific misinformation campaign. On Sciences’ advice, Eastman then commissioned a study that used computer modeling to predict whether a substance contains synthetic estrogens, based on its chemical structure. The model suggested that one of Tritan’s ingredients—triphenyl phosphate, or TPP—was more estrogenic than BPA.
Eastman, which never disclosed these findings to its customers, later commissioned another study, this one involving breast cancer cells. Again, the initial results appeared positive for estrogenic activity. In an email to colleagues, Eastman’s senior toxicologist, James Deyo, called this an “oh shit moment.”
Cell culture tests for estrogenic effects generally involve soaking plastic in alcohol or salt water, then exposing cells to various concentrations of the chemicals that seep out. After Deyo informed the lab that its findings must “be worded very well relative to the lack of” estrogenic activity, it issued a report that only counted data from the lowest concentrations—even though this violated the lab’s testing guidelines, and made the results appear negative when they weren’t. “The lab ignored its own criteria and misrepresented its findings,” says Michael Denison, a professor of toxicology at the University of California-Davis who evaluated the document.
Eastman wasn’t the only company testing Tritan. In 2009, Bittner’s PlastiPure, which was searching for nonestrogenic alternatives to recommend to clients, began vetting products made with it and found that some had even more estrogenic activity than their BPA-laden counterparts. PlastiPure’s CEO, Mike Usey, says CertiChem disclosed this to clients, but many chose Tritan anyway (...)
PS
Ten gość mocno promował Tritan xD nawet miał fimrę, która produkowała butelki dla dzieci z Tritanu
