Journal of Xenobiotics, Год журнала: 2024, Номер 14(4), С. 2015 - 2038

Опубликована: Дек. 18, 2024

The growing use of products containing rare earth elements (REEs) may lead to higher environmental emissions these elements, which can potentially enter aquatic systems. Praseodymium (Pr) and europium (Eu) are widely used REEs with various applications. However, their ecotoxicological impacts remain largely unexplored, poorly understood risks wildlife. Moreover, organisms also face stressors like salinity fluctuations, the nature interaction between variations contaminants is not yet clear. Therefore, this study aimed evaluate influence shifts on Pr Eu adult mussels sperm species Mytilus galloprovincialis after 28 days 30 min exposure, respectively. To do so, biochemical histopathological alterations were evaluated in adults, while physiological changes analysed sperm. Additionally, Integrated Biological Index (IBR) was calculated understand overall impact each treatment. results showed that most affected when exposed combination high element, altered behaviour defence mechanisms causing redox imbalance cellular damage. On other hand, demonstrated sensitivity specific REE-salinity combinations, particularly at lower salinity. These treatments elicited motility velocity: 20 led a production O2− decrease velocity, 40 resulted reduced an increase irregular movement. At both levels, exposure caused similar sensitivities adults sperm, reflected by comparable IBR scores. In contrast, induced greater than salinity, whereas reverse observed findings suggest reproductive success population dynamics could be modulated interactions levels REE pollution, highlighting need for further investigation into how factors interact. This offers valuable insights inform policymakers about potential contamination, emphasising importance implementing regulations developing strategies mitigate pollutants.

Язык: Английский