The overall health of Baltimore's harbor is holding steady according to the 2025 Healthy Harbor Report Card released on Friday. While some areas are improving, others are headed in the wrong direction.

The annual update reports on the water quality and health of Baltimore's Inner Harbor based on data gathered by both Blue Water Baltimore and Waterfront Partnership in 2024.

The harbor earned a "C" for overall ecosystem health, a grade that has held steady in recent years. The report showed both ecological improvements and ongoing vulnerabilities.

Record oxygen levels, but algae concerns remain

Dissolved oxygen levels, a key measure of aquatic health , earned an "A" for the first time in the report's history.

According to the Waterfront Partnership, improved oxygen levels reflec

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