Products and Equipment from Water-Ways Irrigation Engineers,

Companioni Dams, Eloy Yordad; Nunez Clemente, Ana Catalina; Cora Medina, Miriam Odette [Laboratorio de Quimica Ambiental, Centro de Investigaciones del Petroleo, Habana (Cuba)]. E-mail: elocompa@yahoo.com; Gonzalez Brovo, Luis [Centro de Aplicaciones Tecnologicas y Desarrollo Nuclear, Habana, (Cuba); Marbot Ramada, Rolando [Laboratorio de Quimica Analitica, Centro de Investigaciones del Petroleo, Habana (Cuba); Montes de Oca Porto, Rodny [Laboratorio Antidoping, Habana (Cuba); Rosabal Rodriguez, Maikel [Centro de Ingenieria y Manejo Ambiental de Bahias y Costas, Habana (Cuba); Diaz Diaz, Miguel angel [Laboratorio de Quimica Ambiental, Centro de Investigaciones del Petroleo, Habana (Cuba)

2009-02-15

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As a part of a geochemical examine, aliphatic and aromatic hydrocarbons were determined in surficial sediments, from a Cuban coastal zone located in the Northeastern Havana Littoral. Sediment samples were collected at 15 sites in this space, and then extracted and analyzed by gas chromatography with flame ionization and mass spectrometry detectors. Complete focus of both, aliphatic (AH) and aromatic (ArH) hydrocarbons, assorted from 2.Four +- 0.2 to 105.1 +- 5.9 mug/g (dry weight) and from 1.1 +- 0.2 to 38.Four +- 7.6 mug/g (dry weight), respectively. The chromatography profile of AH was dominated by an unresolved complex mixture (UCM), and the presence of isoprenoid hydrocarbons, steranes and hopanes, indicated petroleum – associated hydrocarbon inputs. The predominant concentration of phytoplanktonic molecular markers (pristane and nC17) in collected sediments, revealed the marine productivity in this websites. The anthropogenic contribution detected confirmed the affect of the petroleum exploration along this coastal area. [Spanish] Como parte de un estudio geoquimico se determinaron hidrocarburos alifaticos y aromaticos en sedimentos superficiales, de una zona costera situada en el Litoral Nordeste de La Habana. Las muestras de sedimento se colectaron en 15 estaciones de muestreo en esta space, y posteriormente se extrajeron y analizaron mediante cromatografia gaseosa con detectores de ionizacion a la llama y espectrometria de masas. Las concentraciones totales de hidrocarburos alifaticos (HA) e hidrocarburos aromaticos (HAr) variaron desde 2.Four +- 0.2 a 105.1 +- 5.9 mug/g (peso eco) y desde 1.1 +- zero.2 a 38.4 +- 7.6 mug/g (peso eco), respectivamente. El perfil cromatografico de los hidrocarburos alifaticos estuvo dominado por una mezcla compleja no resuelta (MCNR), y la presencia de hidrocarburos isoprenoides, esteranos y hopanos, indico el aporte de hidrocarburos derivados del petroleo.