PITTSBURGH—The Federal Environmental Protection Agency is giving the Port of Pittsburgh $1.15 to help three companies that use the cities three rivers retrofit four towboats with new diesel engines and generators that will pollute the air less.

Campbell Transportation Co., Consol Energy and River Salvage, Inc. will contribute $1.9 million, combined, for the four new boats.

Officials from the EPA, the state Department of Environmental Protection, the Port of Pittsburgh, and the Allegheny County Health Department attended Wednesday's announcement along the Allegheny River.