Has The U.S. EPA Established An RfD Or Oral Daily Silver Intake Limit?
In 1991 the EPA issued an oral intake limit for daily use on silver to be 0.005 mg/kg/day (EPA RED Document pg.2). That means that according to the EPA guidelines for silver ingestion, an average size adult could safely consume the equivalent of one ounce daily of a 10 ppm silver product and not exceed the EPA established daily intake limit. On page two of the EPA RED document it states, “EPA does not anticipate that dietary exposure to these low levels of silver will be associated with any significant degree of risk”.
