A recent Rutgers University study claims that bacteria can break down bisphenol A (BPA) into metabolites that are more toxic to the environment than BPA itself. Jessica M. McCormick, et al., “Microbially Mediated O-Methylation of Bisphenol A Results in Metabolites with Increased Toxicity to the Developing Zebrafish,” Environmental Science & Technology, June 16, 2011. Researchers conducted a laboratory experiment in which bacteria broke down BPA into metabolites that were found to decrease the embryonic and long-term survival of zebrafish. Researchers recommend additional investigation to determine the presence of these metabolites in the environment, the environmental fate of BPA and resulting potential toxic effects on humans and other organisms.