The illustration at the top of the article shows plastic drink bottles, which are unlikely to contain BPA. According to Wikipedia, the most likely BPA sources in the food supply would be from the linings of metal cans:
> As a result of the presence of BPA in plastics and other commonplace materials, most people are frequently exposed to trace levels of BPA. The primary source of human exposure is via food, as epoxy and PVC are used to line the inside of food cans to prevent corrosion of the metal by acidic foodstuffs. Polycarbonate drinks containers are also a source of exposure, although most disposable drinks bottles are actually made of PET, which contains no BPA.[1]
Polycarbonates are the rigid plastics like the ones used in reusable water bottles, but many such bottles are now BPA-free.