Do high fat legumes accumulate POPs like dioxin and PCBs?

["Susan K. Snow" <sksnow@1stnet.com>]

  Mark Robinowitz wrote:
  [snip]
  > 
  > vegetable fats (soy!) do not bio-accumulate fat soluble dioxin as much >as animal fats
  [snip]
  
  My family eats vegetarian.  However, they also enjoy high-fat peanut
  butter, which I try to buy from certified organic farms.
  
  With the spreading of hazardous wastes and sewage sludge (biosolids) in
  fertilizer even on some organic farms in American agriculture, do the
  persistent organic pollutants, which include PCBs and such-- accumulate
  in peanuts?
  
  Any references on this?
  
  Susan