Interesting article, I wonder where the research will take them on this? I mean we know BPA’s are bad for us but how many of us still drink out of regular plastic cups…
To test for the chemicals, Wooten and Smith created simulated dog saliva, then simulated chewing by squeezing the bumpers and dog toys with stainless steel salad tongs.

Researchers Find Potentially Dangerous Chemicals in Dog Training Batons :: Texas Tech Today