Plants and Pb

[Ben Levin]

 There was an article in The Wall Street Journal about two weeks ago (I 
think there was also an article in Science as well) about what is now 
called "phytoremediation",  or the use of plants ("phyto"-plant from 
latin,  I believe) to remedy.  In this case they are used to remedy soils 
contaminated with extremely toxic/radioactive heavy metals.
 The plants used in the case mentioned in the article were some species of 
the mustard family (Brassica ssp.).
 I also know that some water treatment plants use water hyacinth to 
"clean" sewage water.

Ben