Kidneys are a "filter" organ, liver really isn't. The liver contains p450 enzymes which chemically modify toxins from the blood as they flow through so that the

Kidneys are a "filter" organ, liver really isn't. The liver contains p450 enzymes which chemically modify toxins from the blood as they flow through so that they can easily be filtered by the kidneys... I don't see any reason to expect toxins to be concentrated in the liver.