Ideally, no Mercury should be present in drinking water, or, for that matter, in any food. Unfortunately, some Mercury may be found in some drinking water and food. The sources of Mercury are industrial products such as batteries, their manufacturing processes and the way they have been disposed of, or natural water flowing over Mercury deposits such as Cinnabar.
The U.S. Environmental Protection Agency has established a 2 parts per billion (ppb) threshold for Mercury in Water. If water is found to contain more Mercury than this threshold, action must be taken to find the source of contamination and prevent further exposure.
ChemSee offers the HG-03 Detector for Mercury in Liquid to quickly determine if Mercury is present in liquids at concentrations greater than the EPA 2 ppb limit.