title: Occurrence and persistence of organic emerging contaminants and priority pollutants in five sewage treatment plants of Spain: two years pilot survey monitoring.
abstract: This work summarized all results obtained during almost two-years of a monitoring programme carried out in five municipal sewage treatment plants (STPs) located in the north, centre and south-east of Spain. The study evaluated the occurrence and persistence of a group of 100 organic compounds belonging to several chemical groups (pharmaceuticals, personal care products, pesticides and metabolites). The average removal efficiencies of the STPs studied varied from 20% (erythromycin) to 99% (acetaminophen). In analysed samples, we identified a large number of compounds at mean range concentrations between 7-59,495 ng/L and 5-32,720 ng/L for influent and effluent samples, respectively. This study also identified 20 of the mostly detected and persistent compounds in wastewater effluent, of which hydrochlorothiazide, atenolol, gemfibrozil, galaxolide and three metabolites (fenofibric acid, 4-AAA and 4-FAA), presented the highest average contribution percentages, in relation to the total load of contaminants for the different STPs effluent studied.
authors.affiliation: Pesticide Residues Research Group, Department of Hydrogeology and Analytical Chemistry, University of Almería, 04120 La Cañada de San Urbano, Almería, Spain.
authors.forename: M J Martínez
authors.initials: MJ
authors.lastname: Bueno
authors.forename: M J
authors.initials: MJ
authors.lastname: Gomez
authors.forename: S
authors.initials: S
authors.lastname: Herrera
authors.forename: M D
authors.initials: MD
authors.lastname: Hernando
authors.forename: A
authors.initials: A
authors.lastname: Agüera
authors.forename: A R
authors.initials: AR
authors.lastname: Fernández-Alba
mesh_terms: D004784:Environmental Monitoring; D009930:Organic Chemicals / Q000032:analysis*; D010865:Pilot Projects; D012722:Sewage / Q000737:chemistry*; D013030:Spain; D014865:Waste Disposal, Fluid; D014874:Water Pollutants, Chemical / Q000032:analysis*; D014877:Water Pollution, Chemical / Q000706:statistics & numerical data
chemical_list: D009930:Organic Chemicals; D012722:Sewage; D014874:Water Pollutants, Chemical