Please let me know a good US university to study environmental chemistry for a Ph.D. degree?

Question

I would like to know about a good multidiciplinary program.

Answer 1

Chemistry (Ph.D.)
1. California Institute of Technology 4.9
Massachusetts Institute of Technology 4.9
Stanford University (CA) 4.9
University of California--Berkeley 4.9

Chemistry Specialties: Analytical
Ranked in 2007*

1. University of North Carolina–Chapel Hill
2. Purdue University–West Lafayette (IN)
3. University of Illinois–Urbana-Champaign

My personal recommendation is Purdue University. Besides being highly rated academically, I found the people to be friendly and the campus is very attractive.
Trivia, more NASA astronauts graduated from Purdue than any other university.