If you lived/worked in the US, you may want to look at this map to see what you have already been exposed to.
http://whatsdown.terradex.com/
If you lived/worked on a SuperFund site or a Brownsfield site, then start here and navigate:
https://en.wikipedia.org/wiki/Superfund
If you lived/worked in Silicon Valley and have not heard of a SuperFund site...then take a deep breath, and prepare to be shocked.
GD
