title: Distribution and sources of aliphatic hydrocarbons in surface sediments of Sergipe River estuarine system.
abstract: The assessment of aliphatic hydrocarbons was performed in the Sergipe River estuarine system, northeastern Brazil. Aliphatic hydrocarbons concentration ranged from 9.9 ug g⁻¹ up to 30.8 ug g⁻¹ of dry sediment. The carbon preference index (CPI, based on nC₂₄ to nC₃₄ range), indicated predominance of petrogenic input in two of the sites analyzed (P4 and P5). The unresolved complex mixture (UCM) was found to be present in seven of the nine sites sampled (except for P4 and P5). Overall, the results of this work suggest that there is a mix of organic matter sources to the sediment. Although the coast of Sergipe has an intense off shore petroleum exploration and the Sergipe River crosses the entire city of Aracaju, the capital city of Sergipe, non-significant anthropogenic fingerprint was assessed.
authors.affiliation: Departamento de Química, Universidade Federal de Sergipe, Jardim Rosa Elze, São Cristóvão, SE 49100-000, Brazil.
authors.forename: Manoel B
authors.initials: MB
authors.lastname: Lima
authors.forename: Elaine A
authors.initials: EA
authors.lastname: Feitosa
authors.forename: Elissandro S
authors.initials: ES
authors.lastname: Emídio
authors.forename: Haroldo S
authors.initials: HS
authors.lastname: Dórea
authors.forename: Marcelo R
authors.initials: MR
authors.lastname: Alexandre
mesh_terms: D001938:Brazil; D004784:Environmental Monitoring; D006838:Hydrocarbons / Q000032:analysis*; D059392:Petroleum Pollution / Q000032:analysis / Q000706:statistics & numerical data; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis; D045483:Rivers / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000032:analysis*; D014877:Water Pollution, Chemical / Q000706:statistics & numerical data
chemical_list: D006838:Hydrocarbons; D011084:Polycyclic Aromatic Hydrocarbons; D014874:Water Pollutants, Chemical