title: Is it possible to increase bioavailability but not environmental risk of PAHs in bioremediation?
abstract: The current poor predictability of end points associated with the bioremediation of polycyclic aromatic hydrocarbons (PAHs) is a large limitation when evaluating its viability for treating contaminated soils and sediments. However, we have seen a wide range of innovations in recent years, such as an the improved use of surfactants, the chemotactic mobilization of bacterial inoculants, the selective biostimulation at pollutant interfaces, rhizoremediation and electrobioremediation, which increase the bioavailability of PAHs but do not necessarily increase the risk to the environment. The integration of these strategies into practical remediation protocols would be beneficial to the bioremediation industry, as well as improve the quality of the environment.
authors.affiliation: Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS-CSIC), Apartado 1052, E-41080 Seville, Spain. Electronic address: jjortega@irnase.csic.es.
authors.forename: J J
authors.initials: JJ
authors.lastname: Ortega-Calvo
authors.forename: M C
authors.initials: MC
authors.lastname: Tejeda-Agredano
authors.forename: C
authors.initials: C
authors.lastname: Jimenez-Sanchez
authors.forename: E
authors.initials: E
authors.lastname: Congiu
authors.forename: R
authors.initials: R
authors.lastname: Sungthong
authors.forename: J L
authors.initials: JL
authors.lastname: Niqui-Arroyo
authors.forename: M
authors.initials: M
authors.lastname: Cantos
mesh_terms: D001673:Biodegradation, Environmental; D001682:Biological Availability; D011084:Polycyclic Aromatic Hydrocarbons / Q000378:metabolism*; D018570:Risk Assessment; D012989:Soil Pollutants / Q000378:metabolism*
chemical_list: D011084:Polycyclic Aromatic Hydrocarbons; D012989:Soil Pollutants
keywords: Bioavailability; Bioremediation; Chemotaxis; PAH; Risk; Surfactant