Something like 80 mg per liter at most in the USA. That's very low compared to the dose needed to treat malaria. Edit I did liter to cup conversion and its like 19 mg per cup at most in the USA if that helps.
Post edited at 1:00 pm on July 10, 2009 by Dexter Ward
-------
Hatred does not cease by hatred, but only by love; this is the eternal rule.