title: Sub-soil contamination due to oil spills in zones surrounding oil pipeline-pump stations and oil pipeline right-of-ways in Southwest-Mexico.
abstract: Oil spills due to oil pipelines is a very frequent problem in Mexico. Petroleos Mexicanos (PEMEX), very concerned with the environmental agenda, has been developing inspection and correction plans for zones around oil pipelines pumping stations and pipeline right-of-way. These stations are located at regular intervals of kilometres along the pipelines. In this study, two sections of an oil pipeline and two pipeline pumping stations zones are characterized in terms of the presence of Total Petroleum Hydrocarbons (TPHs) and Polycyclic Aromatic Hydrocarbons (PAHs). The study comprehends sampling of the areas, delimitation of contamination in the vertical and horizontal extension, analysis of the sampled soils regarding TPHs content and, in some cases, the 16 PAHs considered as priority by USEPA, calculation of areas and volumes contaminated (according to Mexican legislation, specifically NOM-EM-138-ECOL-2002) and, finally, a proposal for the best remediation techniques suitable for the contamination levels and the localization of contaminants.
authors.affiliation: Grupo Saneamiento de Suelos y Acuiferos: Coordinacion de Ingenieria Ambiental, Instituto de Ingeniería, Universidad Nacional Autonoma de Mexico, Mexico City, D.F., Mexico.
authors.forename: Rosario
authors.initials: R
authors.lastname: Iturbe
authors.forename: Carlos
authors.initials: C
authors.lastname: Flores
authors.forename: Alejandrina
authors.initials: A
authors.lastname: Castro
authors.forename: Luis G
authors.initials: LG
authors.lastname: Torres
mesh_terms: D008800:Mexico; D010578:Petroleum; D011083:Polycyclic Compounds / Q000032:analysis; D012989:Soil Pollutants / Q000032:analysis*
chemical_list: D010578:Petroleum; D011083:Polycyclic Compounds; D012989:Soil Pollutants