title: The life cycle impact assessment applied to the Domingo Rubio tidal system by the study of seasonal variations of the aquatic eutrophication potential.
abstract: The innovative technique of Life Cycle Impact Assessment (LCIA) applied to dynamic environmental systems has been recently developed. In this work we investigate a complex system, the Domingo Rubio tideland (Huelva, Spain), where a tidal marsh and a continental lagoon converge. This wetland, catalogued as Natural Park by the Andalusia government, is subjected to a high eutrophicant pressures related to the strawberry culture and the inputs coming from industrial wastes. NO(2)(-), NO(3)(-) and PO(4)(3-) were analyzed in 41 water samples, obtaining values up to 100mg L(-1) Σ(NO(2)(-), NO(3)(-)) and 18.5mg L(-1) PO(4)(3-). All these values exceed the accepted levels by the European Environment Agency. N/P ratios and the Aquatic Eutrophication Potentials (AEP) for N and P showed a constant imbalance of the system. During one tidal cycle, the tidal channel can have both N and P as limiting nutrient (P is the limiting nutrient during low tide and N is during high tide) and there exists an alternation of AEP domination too between N and P in the continental area, what points to an excess of both nutrients all over the study area, and to the necessity of diminishing the nutrient inputs and a higher control on these pollution sources as well.
authors.affiliation: Departamento De Cristalografía, Mineralogía y Química Agrícola, Facultad de Química, University of Seville. C/ Profesor García Gonzalez, s/n 41012 Seville, Spain.
authors.forename: C
authors.initials: C
authors.lastname: Barba-Brioso
authors.forename: G
authors.initials: G
authors.lastname: Quaranta
authors.forename: E
authors.initials: E
authors.lastname: Galán
authors.forename: J C
authors.initials: JC
authors.lastname: Fernández-Caliani
authors.forename: A
authors.initials: A
authors.lastname: Miras
mesh_terms: D004777:Environment; D004784:Environmental Monitoring; D005068:Eutrophication; D009566:Nitrates / Q000032:analysis; D009573:Nitrites / Q000032:analysis; D010710:Phosphates / Q000032:analysis; D018570:Risk Assessment; D012621:Seasons; D014873:Water Pollutants / Q000032:analysis*; D014876:Water Pollution / Q000706:statistics & numerical data
chemical_list: D009566:Nitrates; D009573:Nitrites; D010710:Phosphates; D014873:Water Pollutants