PROVIDENCE, RI – The latest water quality report from the Narragansett Bay Commission shows continued improvement in the bay's health, with nitrogen levels declining and dissolved oxygen levels improving in most areas. However, environmental scientists warn that the bay faces ongoing challenges from stormwater runoff, climate change, and the legacy of decades of industrial pollution.

The annual State of Narragansett Bay and Its Watershed report found that investments in wastewater treatment infrastructure over the past two decades have significantly reduced nutrient pollution in the bay. The commission's upgraded treatment plants, which remove nitrogen from wastewater before it is discharged into the bay, have been particularly effective in improving water quality in Providence Harbor and the upper bay.

"The progress we've made in reducing nitrogen pollution is a real success story," said Dara Dolton, executive director of the Narragansett Bay Commission. "It demonstrates that targeted infrastructure investment can make a real difference in environmental quality."

However, the report also highlights persistent challenges. Stormwater runoff from developed areas continues to carry pollutants into the bay during rain events, and climate change is warming the bay's waters and altering its ecology.

The warming of Narragansett Bay has had significant impacts on the fishing industry, with traditional species like winter flounder declining while warm-water species like black sea bass and squid have become more abundant. The changes have required fishermen to adapt their practices and target different species.

"The bay is changing, and we have to change with it," said one Cranston-based commercial fisherman. "Some of the species we used to catch aren't there anymore, but there are new opportunities if you're willing to adapt."

The Narragansett Bay is Rhode Island's most valuable natural resource, supporting a $500 million fishing industry, a thriving recreational boating sector, and a tourism industry that draws visitors from across the country.