Category Archives: Reptiles

Mercury found in Okefenokee alligators 2025-06-12

The problem: “Alligators in the Okefenokee Swamp had mercury levels that were eight times higher than the other two research sites.” The other locations were Jekyll Island near Brunswick, GA, and Yawkey Wildlife Center, near Georgetown, SC. See Savannah Peat, UGA Today, June 12, 2025, New study shows alligators aren’t all that’s lurking in Georgia’s swamps,

Why this matters: “The presence of mercury in these waters not only impacts the health of the alligator but could have dangerous health effects on the other creatures relying on these waterways for food, including humans.”

Plus mercury comes down from the air not only into the waters where alligators live, but also onto nearby land, such as where the coal miners from Alabama want to strip mine for titanium dioxide (TiO2) too near the Okefenokee Swamp. Such mining could stir up mercury from the soil and get it into water or back into the air. You can still tell the Georgia Environmental Protection Division (GA-EPD) that it should deny the miners’ permit applications:
twinpines.comment@dnr.ga.gov

And also probably where Chemours wants to expand its Trail Ridge South TiO2 mine onto land owned by the Suwannee River Water Management District (SRWMD). The official comment period has expired, but you can still write to the U.S. Army Corps of Engineers (USACE) about the Chemours permit applications:
https://wwals.net/?p=67629

[High levels of mercury found in alligators, Okefenokee Swamp, UGA 2025-06-12]
High levels of mercury found in alligators, Okefenokee Swamp, UGA 2025-06-12

Where does the mercury come from? “For instance, precipitation is the dominant source of environmental mercury deposition in other systems, and the hydrology of OS is dominated by precipitation and runoff with an average annual rainfall of 132.23 cm (Brook and Hyatt 1985, Wang et al., 2019, Okefenokee National Wildlife Refuge 1945–2021). Okefenokee is also in close proximity to several industrialized power plants, which have the potential to contribute to atmospheric Hg deposition (Porter 2000, Sherman et al., 2012).”

The actual power plants are not named in that paper or its sources, but we know the main culprit: Georgia Power’s Coal Plant Scherer, near Macon, Georgia, Continue reading