Two notorious Great Lakes invaders—the zebra mussel and the round goby—now play a central role in transferring toxic chemicals called PCBs up the food chain and into Saginaw Bay walleyes, one of that region's most popular sport fish.

Finds limited application to Tittabawassee River and Saginaw River and Bay.

ESSEXVILLE, Mich., Oct. 23 /PRNewswire/ -- Consumers Energy, Utility Workers Union of America Local 144, and the U.S.

To: STATE EDITORS Contact: Karen Thompson of EPA, +1-312-353-8547, thompson.karen@epa.gov CHICAGO,May 28/PRNewswire-USNewswire/ -- Officials from U.S.

CHICAGO _ The Bush administration forced its top environmental regulator in the Midwest to quit Thursday after months of internal bickering about dioxin contamination downstream from Dow Chemical's world headquarters in Michigan.