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  • From: Lawrence London <>
  • To: mailing list at ibiblio - Northamerican Allied Fruit Experimenters <>
  • Subject: Re: [nafex] fertilzing
  • Date: Wed, 20 May 2015 09:00:42 -0400

On Wed, May 20, 2015 at 7:42 AM, Mike Levine <> wrote:

> I considered using some once, but the particular product we were were
> looking at had a tiny bit of radioactive material in it. It was just a
> small amount, but we were advised by a friend who does environmental
> testing not to use it for that reason. Every little but of radiation is a
> little bit more you just don't want around. Radon is common in our area
> and is formed by the break down of these heavier radioactive elements so
> it's believable that even a small amount of radioactive material in rock
> dust could be harmful.

Thanks for the heads-up. I have heard about radioactivity issues with rock
particularly the Florida types, possibly Tennessee too, don't know about
the Idaho.
As for quarry dusts, I suppose it may exist, maybe with certain types of
granite (a kind of gravelly rock used for driveways in my region). Radon is
a problem in many areas and sealing cracks and perimeter of ground contact
concrete slabs is necessary; there may be well water issues too.

I'll check tonight to see if my feet and hands are beginning to glow. As
for my use of quarry dusts I feel the benefits far outweigh any risks.

Lawrence F. London
Ello: @ecoponderosa <>

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