A new study reveals the presence of pharmaceuticals and illicit drugs in sharks near Eleuthera Island, Bahamas, highlighting the impact of chemical pollution on marine ecosystems. Researchers found contaminants like caffeine, acetaminophen, diclofenac, and cocaine in three shark species, indicating the entry of these substances into ocean food webs through various pollution sources. The study also observed changes in metabolic markers in affected sharks, raising concerns about their long-term health and the broader ecological consequences.
by JESSICA A. BOTELHO | The National News DeskFILE - A white shark swims in Shark Alley near Dyer Island on July 8, 2010 in Gansbaai, South Africa. " Pharmaceuticals and illicit drugs are increasingly recognized as contaminants of emerging concern in marine environments, particularly in areas undergoing rapid urbanization and tourism-driven development," according to researchers.
FILE - A white shark swims in Shark Alley near Dyer Island on July 8, 2010 in Gansbaai, South Africa. In the study, researchers analyzed 85 sharks around Eleuthera Island. They discovered that 28 of the sharks contained detectable levels of the following contaminants:The contaminants were found in three species, including Caribbean reef sharks , nurse sharks and lemon sharks , the study noted. "To the best of our knowledge, this is the first report of caffeine and acetaminophen detected in any shark species worldwide, and the first report of diclofenac and cocaine in sharks from The Bahamas," according to researchers.Scientists said the findings highlight how pollutants commonly associated with human activity, including medications and recreational drugs, are making their way into ocean food webs. The substances can enter marine environments through wastewater discharge, runoff, and other forms of pollution. While the study did not detail immediate health effects on the sharks, researchers identified changes in metabolic markers in them. Sharks with CECs showed altered triglycerides, urea, and lactate levels, per the study. Researchers also noted that the presence of the compounds underscores the growing reach of chemical pollution and the need for further investigation into its ecological impact.The findings add to a growing body of research documenting contaminants in marine wildlife, with experts warning that persistent exposure could have long-term consequences for ocean ecosystems and species health.Two Carlisle High School students went to the Carlisle Area School District's board meeting last week, discussing the school's handling of their club.Upper Allen Police are on the scene of a standoff where police believe one person has barricaded themselves in the house with a firearm.Fire police told CBS 21 that York City Police are investigating a shooting on East Church Avenue by Penn Park.This is a developing story. Stay with CBS 21 forTwo men were arrested Wednesday in connection with an October 2025 shooting incident in Lancaster city.A restaurant tied to a sexual assault investigation has removed a social media post addressing what it claims are "false rumors."
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