AI Article Synopsis
- The study focuses on the contamination of green turtles in the Ogasawara Islands, Japan, by benzotriazole-type ultraviolet stabilizers (BUVSs) and polychlorinated biphenyls (PCBs).
- BUVSs were found in the adipose tissue of 19 out of 21 turtles, with specific compounds like UV-327, UV-326, and UV-328 being frequently detected at varying concentrations.
- The research suggests that the presence of BUVSs in turtles may be more related to plastic debris in the environment rather than just their diet, as high BUVS levels don't always correspond with high PCB levels.
Article Abstract
Benzotriazole-type ultraviolet stabilizers (BUVSs) are emerging contaminants whose exposure to wildlife is of concern. In this study, we investigated the contamination status of BUVSs in green turtles (Chelonia mydas) breeding at Ogasawara Islands, Japan, through chemical analysis of 10 BUVSs and 26 congeners of polychlorinated biphenyls (PCBs) in adipose tissue (n = 21) and blood plasma (n = 9). BUVSs were detected significant levels in adipose tissue (19 of 21 turtles), and UV-327 (not detected - 14.8 ng/g-lipid, detection frequency: 76 %), UV-326 (not detected - 24.1 ng/g-lipid, 29 %), and UV-328 (not detected - 5.8 ng/g-lipid, 24 %) were frequently detected. Turtles exhibiting sporadically high concentrations of BUVSs (>10 ng/g-lipid) did not necessarily correspond to individuals with high total PCB concentrations (1.03-70.2 ng/g-lipid). The sporadic occurrence pattern of BUVSs suggested that these contaminants in sea turtles cannot be explained solely by diet but are likely derived from plastic debris.
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| http://dx.doi.org/10.1016/j.marpolbul.2024.116753 | DOI Listing |
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Detection of benzotriazole-type ultraviolet stabilizers in sea turtles breeding in the Northwest Pacific Ocean.
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Article Synopsis
- The study focuses on the contamination of green turtles in the Ogasawara Islands, Japan, by benzotriazole-type ultraviolet stabilizers (BUVSs) and polychlorinated biphenyls (PCBs).
- BUVSs were found in the adipose tissue of 19 out of 21 turtles, with specific compounds like UV-327, UV-326, and UV-328 being frequently detected at varying concentrations.
- The research suggests that the presence of BUVSs in turtles may be more related to plastic debris in the environment rather than just their diet, as high BUVS levels don't always correspond with high PCB levels.
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