Soil testing for toxins

 Anyone ever had their soil tested for toxins?  I live in the ghetto and
would really like to know whats in my soil before I would eat anything that
came from it.  I cleared a bed just for some flowers, it was about 3x10 and
you wouldn't believe all the crap I found.

Anyway, google revealed several soil testing services for nutrient content,
but couldn't find anything related to test that included toxins.  I guess
I'm just curious if anyone is aware of anything?

 
I have never done it, but I did look at the price list that our state
university extension office offers.  It can get kind of expensive to have
all of the tests done, but could be worth it.  I have an area that was the
incinerator for many years.  Although I have not planted edibles there,
shrubs and flowering plants did not do well for many years.  I have hauled
in new soil as I can, and it is better.  Back to your original question,
check with your agricultural college or your department of agriculture for
your area.  Should be able to find a soil testing agency that can do toxic
testing.

Good luck
Dale P