Cancer-causing metals found in a Chesapeake Bay tributary

A recent study in Environmental Pollution unveils alarming discoveries: Researchers have identified cancer-causing contaminants in sediments and fish in a Chesapeake Bay tributary near a coal ash landfill.

The study, led by Dr. Tyler Frankel, the project’s principal investigator and Assistant Professor of Environmental Sciences at the University of Mary Washington, uncovered long-overlooked impacts of trace metal contamination on waterways and aquatic species adjacent to coal ash landfills. Frankel emphasized the study’s focus was on addressing the missing risk management component, spotlighting the role of sediments in storing, releasing, and transporting trace metals in aquatic ecosystems.

The research team examined water and sediment samples from aquatic environments surrounding five Virginia coal ash facilities. Coal ash, a prevalent industrial waste product produced in the United States, contains several water-soluble metals, including cadmium, selenium, mercury, lead, and arsenic. The study revealed significantly heightened concentrations of these trace metals in sediments at waterway bottoms and in banded killifish tissues near these coal ash landfills.

The implications are grave. Long-term exposure to metals like arsenic, cadmium, and chromium has been linked to cancer, increased cardiovascular risks, and other detrimental health issues, impacting both wildlife and humans. Furthermore, these contaminants increase in concentration as they progress up the food web, posing threats to predatory fish and birds, Frankel said.

More information: T.E. Frankel et al, Assessing the presence, concentration, and impacts of trace element contamination in a Chesapeake Bay tributary adjacent to a coal ash landfill (Possum Point, VA), Environmental Pollution (2023). DOI: 10.1016/j.envpol.2023.122768

Journal information: Environmental Pollution