Absorption of arsenic by edible plants

[Alf Christophersen]

On Tue, 28 Mar 2000 17:25:50 -0500, wtmorgan at pilot.msu.edu (Bill
Morgan) wrote:

>What we're talking about isn't so much ultra-analysis as whether or not
>this preservative can pose a hazard in the amounts that might leach out.
>You don't need radioisotopes to get at that question.

Since the amounts most possibly is in range less than 1 microgram pr
kg earth and the the concentration in earth from ancient time is at
least 1000 times higher, you need exact methods, otherwise you will
believe the background is the leakage (it has been done)