We've long known that the fish we eat are exposed to toxic chemicals in the rivers, bays and oceans they inhabit. The substance that's gotten the most attention - because it has shown up at disturbingly high levels in some fish - is mercury.

But mercury is just one of a slew of synthetic and organic pollutants that fish can ingest and absorb into their tissue. Sometimes it's because we're dumping chemicals right into the ocean. But as a study published recently in Nature, Scientific Reports helps illuminate, sometimes fish get chemicals from the plastic debris they ingest.

http://www.npr.org/blogs/thesalt/2013/12/12/250438904/how-plastic-in-the-ocean-is-contaminating-your...