title: Hydrocarbons derived from petroleum in bottled drinking water from Mexico City.
abstract: This paper describes the concentrations of polycyclic aromatic hydrocarbons (PAHs) and aliphatic hydrocarbons (AHs) derived from petroleum in bottled drinking water samples that were collected over 1 year from Mexico City in two bottle sizes (1.5 and 19 L), all brought in supermarkets. The analysis was by gas chromatography with flame ionization detection. -Concentrations of AHs (9.26-1.74 μg/L) were greater than PAHs (20.15-12.78 ng/L). Individual concentrations of PAHs such as fluoranthene, benzo(b)fluoranthene, benzo(k)fluoranthene, indeno(1,2,3-cd)pyrene and benzo(ghi)perylene were comparable with data reported by the World Health Organization (WHO). Total concentrations of PAHs for all samples (BDW1: 12.78 μg/L, BDW2: 16.72 μg/L, BDW3: 14.62 μg/L, BDW4: 20.15 μg/L and BDW5: 13.23 ng/L) were below the maximum permissible European level of 100 ng/L; no regulations exist for AHs although their values were greater than PAHs (BDW1: 3.11 μg/L, BDW2: 8.45 μg/L, BDW3: 1.74 μg/L, BDW4: 4.75 μg/L and BDW5: 9.26 μg/L).
authors.affiliation: Departamento de Producción Agrícola y Animal, Laboratorio de Análisis Instrumental, Universidad Autónoma Metropolitana Unidad Xochimilco, Calzada del Hueso 1100, Colonia Villa Quietud, 04960 Coyoacán, DF, México.
authors.forename: Salvador
authors.initials: S
authors.lastname: Vega
authors.forename: Rey
authors.initials: R
authors.lastname: Gutiérrez
authors.forename: Rutilio
authors.initials: R
authors.lastname: Ortiz
authors.forename: Beatriz
authors.initials: B
authors.lastname: Schettino
authors.forename: Maria de Lourdes
authors.initials: Mde L
authors.lastname: Ramírez
authors.forename: José Jesus
authors.initials: JJ
authors.lastname: Pérez
mesh_terms: D002947:Cities; D004781:Environmental Exposure / Q000032:analysis / Q000706:statistics & numerical data; D005506:Food Contamination / Q000032:analysis* / Q000706:statistics & numerical data; D018857:Food Packaging / Q000295:instrumentation* / Q000706:statistics & numerical data; D006838:Hydrocarbons / Q000032:analysis*; D008800:Mexico; D010578:Petroleum / Q000032:analysis*; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis; D014874:Water Pollutants, Chemical / Q000032:analysis*; D014881:Water Supply / Q000032:analysis / Q000706:statistics & numerical data*
chemical_list: D006838:Hydrocarbons; D010578:Petroleum; D011084:Polycyclic Aromatic Hydrocarbons; D014874:Water Pollutants, Chemical