---quote---
Ay! I've just signed myself up for four years of university in Pittsburgh. Anyone know a good method of limiting heavy metal exposure in such an environment.... Wait... Why would I want that?.. I'll be IRON MAN!
---end quote---
Pittsburgh is a very different city than many Americans picture. There's only a small part of the city that actually has the pollution levels cited in the study. Steel and coke works have given way to robotics and medical research. Disclosure: I am finishing a graduate degree at Pitt right now. I may be biased, but I do hope a new study is done that covers the city as a whole.