North American Fruit Explorers mailing list at ibiblio

[athagan@atlantic.net]

Quoting Ginda Kaplan Fisher <list@ginda.us>:
 
> I read some figures on lead uptake in plants several years ago,
> when I 
> was shopping for a house and testing soil for lead.  Plants take up
> 
> lead, but disperse it differentially though their tissues.  As a
> rule 
> of thumb, dark green leafy vegetables have the most lead, and fruit
> has 
> the least lead.  (My guess is it moves like calcium.)  There's some
> 
> kind of kale or something that's grown on purpose in lead-heavy
> soil to 
> clean up the soil.  (The crop is disposed of as hazardous waste.) 
> Root 
> veggies vary a lot, but can also have high lead loads, maybe just 
> because they are so close to the source?
> 
> Ginda
 
I think about this every time I harvest mustard and turnip greens out
of my garden.

http://www.sciencenews.org/pages/pdfs/data/1996/150-03/15003-14.pdf

.....Alan.



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