Microplastics Found in All Sampled Chesapeake Bay Watershed Locations, Study Reports
A study by Environment America has detected microplastics in all sampled locations within the Chesapeake Bay watershed, including five sites in Maryland waterways such as the Patapsco, Choptank, Nanticoke, and Susquehanna rivers, and the Chesapeake Bay near Talbot County. The…

Harrisburg Lancaster Lebanon York, PA, November 11, 2026 — A recent study conducted by Environment America has revealed the widespread presence of microplastics throughout the Chesapeake Bay watershed. According to the findings, microplastics were detected in every location sampled by the researchers.
The investigation focused on several key waterways within Maryland, identifying contaminants in the Patapsco River, the Choptank River, the Nanticoke River, and the Susquehanna River. Additionally, microplastics were found in the Chesapeake Bay itself, specifically in an area near Talbot County.
The study identified microplastics in various forms, including plastic fibers, which are often shed from textiles; plastic film, commonly found in packaging; small plastic beads, which can be components of cosmetics or industrial abrasives; and fragments, which result from the breakdown of larger plastic items.
The scope of the study covered the entire Chesapeake Bay watershed, indicating that the issue of microplastic pollution is not confined to isolated areas but is a pervasive concern across the region’s aquatic ecosystems. The specific methodology, including the total number of locations sampled and the precise dates of sampling, was not detailed in the provided summary.
Environment America’s findings highlight the extensive reach of plastic pollution into vital water bodies. The presence of these tiny plastic particles, which can persist in the environment for hundreds of years, raises questions about their potential impact on aquatic life and the broader ecosystem health of the Chesapeake Bay watershed.
Story summarized from the original created by Christine Condon, Maryland Matters on penncapital-star.com, see more information here.
Media gallery


