Silver Toxicity: Fact and Fiction

The myths and misconceptions about silver bioavailability and toxicity in aquatic environments do not outnumber the facts but perhaps persist and receive more recognition and credence because the fiction is more interesting. The myths range from those that encompass all "toxic heavy metals" to those that are specific for silver. Some of the myths are embodied in our current regulatory framework while others are apparently slated for use in future decision making. By presenting some of these issues as myths, perhaps we can focus some attention on areas where there are currently critical uncertainties regarding silver, its toxicity and bioavailability in aquatic systems.