"First synthesized in 1891, bisphenol-A came into use as a synthetic estrogen in the 1930s. Later, chemists discovered that, combined with phosgene (used during World War I as a toxic gas) and other compounds, BPA yielded the clear, polycarbonate plastic of shatter-resistant headlights, eyeglass lenses, DVDs and baby bottles."
It is interesting to note how the powerful, acidic cleaners the janitor used are what enabled the bisphenol-A to to leach out of the plastic cages and water bottles and caused 40% of the mice to have defective eggs. It should make everyone think twice about plastic, as well as our fascination with surfaces being sparkling clean. The harmful effects of BPA were stumbled upon. While other plastics were not initially created as a synthetic estrogen, the harmful effects might not be known yet.
What to Do: Go to LIFE WITHOUT PLASTIC to replace your plastic drinking cups with stainless steel, your tupperware with glass and your plastic bowls with stainless steel ones. We use these stainless steel tumblers instead of plastic cups.