Source: University of Georgia, 6/11/25
New research from the University of Georgia’s Odum School of Ecology and Marine Extension and Georgia Sea Grant suggests there may be elevated levels of mercury in Georgia and South Carolina waters.
In studying alligators from the Okefenokee Swamp, Jekyll Island and Yawkey Wildlife Center, UGA researchers found high levels of mercury, prompting concerns about the levels of the heavy metal in the environment. Previous research has shown accumulating levels of the heavy metal in smaller animals in Georgia swamps but not as much is known about animals as high up in the food chain as the alligator. Mercury concentrations in alligators show that the toxin can easily move up the food chain. The researchers discovered that mercury concentrations were more prominent in larger, older gators. That wasn’t just from absorption over time but presumably from the alligators consuming greater amounts of creatures already contaminated with mercury.