Dallas DUers -- looking for info re pollution and asthma in Dallas

[cap]

I am noticing a lot of stuff has been yanked from the Internet on pollution and health hazards. A year ago, I could find stuff easily -- I wish I had saved it.

My sister with severely asthmatic kids doesn't believe that Dallas is seriously polluted and that the pollution causes asthma.

I can't find the studies regarding the Midlothian plants or Alcoa. I can't find the studies ranking Dallas as one of the top polluted areas in the country.

She's saying that Dallas is off the list of most polluted cities. I know that can't be true. In the space of 1 year, the air just doesn't get that clean that fast.

Can you help me?