Caracterización y cuantificación de la contaminación producida por hidrocarburos en el entorno de las centrales térmicas de la provincia de Las Palmas

[ES] En el entorno de las centrales térmicas de Las Palmas (Barranco de Tirajana, Jinámar- Gran Canaria-, Punta Grande -Lanzarote- y Las Salinas -Fuerteventura-) se produce frecuentemente contaminación por hidrocarburos debido a vertidos ocasionales de las propias centrales y de los entornos habitados. Los vertidos que se producen en la zona son de carácter heterogéneo, por lo que sería conveniente estudiar el tipo de compuestos orgánicos existentes (Hidrocarburos aromáticos policíclicos y PCBs, fundamentalmente) a fin de poder identificar el grado de contaminación de esas zonas y las fuentes de los mismos. La finalidad de este trabajo reside en la determinación de métodos selectivos de análisis de este tipo de contaminantes y en concreto de los hidrocarburos orgánicos persistentes (PCBs y los PAHs).

Potential adverse health effects of persistent organic pollutants on sea turtles: Evidences from a cross-sectional study on Cape Verde loggerhead sea turtles

[EN] The Cape Verde nesting population of loggerhead sea turtles (Caretta caretta) is the third largest population of this species in the world. For conservation purposes, it is essential to determine how these reptiles respond to different types of anthropogenic contaminants. We evaluated the presence of organochlorine pesticides (OCPs), polychlorinated biphenyls (PCBs), and polycyclic aromatic hydrocarbons (PAHs) in the plasma of adult nesting loggerheads from Boa Vista Island, Cape Verde, and studied the effects of the contaminants on the health status of the turtles using hematological and biochemical parameters. All turtles had detectable levels of non-dioxin like PCBs, whereas dioxin-like congeners (DL-PCBs) were detected in only 30% of the turtles.

Extraction system and determination of PAH in seawater and it implementation in submarine vehicles

[EN]Policyclyc aromatic hydrocarbons (PAHs) are a potential risk for human health and marine biota in general that make necessary the monitorization of them. A miniaturized extraction system capable to extract PAHs from seawater was developed and optimized with the objective of implement it in an oceanographic buoy in the future. An analytical method was optimized by high performance liquid chromatography for the determination of extracted PAHs by the extraction system. The analytical method was validated and applicated to real samples of differents points of Gran Canaria. The method has enough sensitivity to detect and quantify concentrations below the concentrations established in the legislation. In some places where samples were taken some compounds exceed the legislation while other compounds follow it