PITTSBURGH — Researchers at Carnegie Mellon University say a water quality problem in the Monongahela River that may have been linked to Marcellus Shale natural gas drilling is going away ...

MCKEESPORT, Pa. (KDKA) -- There is oil in the Monongahela River, and apparently, these slicks are an ongoing problem. Since May of 2022, the Three Rivers Waterkeepers, a scientific and legal ...

The authors of the study said most water quality data near Pittsburgh has been collected on the Ohio, Allegheny and Monongahela rivers directly, rather than from the streams that feed into them.

MON RIVER VALLEY — After decades of industrial pollution, the return of bald eagles and river otters shows that the Monongahela River Valley continues to recover.

Dating back to 1958, the University of Louisville and Ohio River Valley Water Sanitation Commission would routinely collect and count fish species at a lock on the Monongahela River. The Ohio ...

The Allegheny and Monongahela rivers converge to form the start of the Ohio River in Pittsburgh, Pa. The 981-mile-long river stretches all the way to Cairo, Ill., where it flows into the ...

When West Virginia University biology undergraduate student Isabella Tuzzio tested fish from central Appalachian streams, her research revealed microplastics in every fish she sampled.

The Allegheny and Monongahela rivers converge to form the start of the Ohio River in Pittsburgh, PA. The 981-mile-long river stretches all the way to Cairo, Illinois, where it flows into the ...

In October 1948, a layer of cold air functioned as a lid, preventing warmer air from escaping the bowl-shaped valley of the Monongahela River. Industrial pollution trapped in the valley spawned a ...

The Allegheny and Monongahela rivers converge to form the start of the Ohio River in Pittsburgh, Pa. The 981-mile-long river stretches all the way to Cairo, Ill., where it flows into the ...