from the Environmental Integrity Project:
**The 12 states with the heaviest concentrations of the dirtiest power plants -- in terms of total tons of carbon dioxide emitted -- are: Texas (five, including two of the top 10 dirtiest plants); Pennsylvania (four); Indiana (four, including two of the top 10 dirtiest plants); Alabama (three); Georgia (three, including two of the top three dirtiest plants); North Carolina (three); Ohio (three); West Virginia (three); Wyoming (two); Florida (two); Kentucky (two); and New Mexico (two).
The "Dirty Kilowatts" report also ranks the worst power plants on the basis of sulfur dioxide, nitrogen oxide and mercury, looking at all four pollutants both in terms of total tons of emissions and also emission rate (pounds per megawatt-hour of electricity produced). For example, just 14 percent of the 378 ranked fossil-fuel-burning power plants account for 40 percent of their sulfur dioxide emissions. Taken together, the 378 plants ranked in this report represent about a third of all power plants tracked in EPA's inventory, but they account for almost 90 percent of the electricity generated by the plants in EPA's inventory, and approximately half of total U.S. electric generation. Plants in North Dakota, Ohio, Pennsylvania, Texas, Indiana, and South Dakota top the non-CO2 rankings.**
http://www.dirtykilowatts.org/release2007.cfmsadly, I live in one of the states.