What copper levels in drinking water are potentially hazardous for Wilsons Disease patients?
If the water is over 0.1 ppm (parts per million) (which is 0.1 mg/L), I recommend an alternative source. While 0.1 ppm isn’t particularly hazardous, it indicates that significant copper is coming from somewhere, and at certain times or under certain circumstances the level might be quite a bit higher. George J. Brewer, M.D.
