A University of Calgary study found that both Bisphenol A, a chemical used to make household plastics and epoxy resins, and Bisphenol S (BPS), which is often labelled as "BPA-free" and presumed to be safer, cause alterations in brain development that can lead to hyperactivity in zebrafish (an animal model widely used to help understand fetal brain development).
"I was actually very surprised at our results. This was a very, very, very low dose, at levels found in the Bow and Old Man rivers in southern Alberta. We wanted to use a dose that was found in a natural waterway and that people would get in their drinking water.” said Deborah Kurrasch, a researcher at the university's Cumming School of Medicine.
"Finding the mechanism linking low doses of BPA to adverse brain development and hyperactivity is almost like finding a smoking gun," said Hamid Habibi, a professor of environmental toxicology and comparative endocrinology in the Faculty of Science.