Researchers have discovered elevated levels of pollutants, including cocaine and caffeine, in sea lions inhabiting coastal waters. A recent study analyzed the blood serum of 85 adult sea lions representing five different species. The investigation revealed the presence of cocaine and caffeine in the blood of 28 animals originating from three distinct species.
Furthermore, the study identified traces of paracetamol, a common painkiller, and diclofenac, an anti-inflammatory drug, within the samples. Notably, grey sea lions whose blood contained these environmental pollutants exhibited altered levels of triglycerides, urea, and lactate compared to those without exposure. This suggests a direct correlation between the presence of these substances and physiological changes in the animals.
The findings highlight a growing concern regarding the contamination of marine ecosystems, particularly in areas frequented by tourists. Previous research, reported by NBC in 2024, indicated that traces of cocaine had been detected in sea lions before. This latest study reinforces the ongoing presence of these pollutants within seemingly undisturbed marine environments.
