title: Occurrence of 95 pharmaceuticals and transformation products in urban groundwaters underlying the metropolis of Barcelona, Spain.
abstract: The present paper presents the occurrence of 72 pharmaceuticals and 23 transformation products (TPs) in groundwaters (GWs) underlying the city of Barcelona, Spain. Thirty-one samples were collected under different districts, and at different depths. Aquifers with different geologic features and source of recharge were included, i.e., natural bank filtration, infiltration from wastewater and water supply pipes, rainfall recharge, etc. Antibiotics were the most frequently found compounds detected at levels reaching 1000 ng L(-1). Natural bank filtration from the river that receives large amounts of effluents from waste water treatment plants (WWTPs), turned out being the most influencing source of contamination, thus GW showed high range of compounds and concentrations as high as or even higher than in the river itself. In general, TPs were found at lower concentrations than the corresponding parent compounds, with some exceptions, such as 4OH propranolol and enalaprilat.
authors.affiliation: Department of Environmental Chemistry, IDAEA-CSIC, Barcelona, Spain.
authors.forename: Rebeca
authors.initials: R
authors.lastname: López-Serna
authors.forename: Anna
authors.initials: A
authors.lastname: Jurado
authors.forename: Enric
authors.initials: E
authors.lastname: Vázquez-Suñé
authors.forename: Jesus
authors.initials: J
authors.lastname: Carrera
authors.forename: Mira
authors.initials: M
authors.lastname: Petrović
authors.forename: Damià
authors.initials: D
authors.lastname: Barceló
mesh_terms: D002947:Cities; D004784:Environmental Monitoring; D060587:Groundwater / Q000737:chemistry*; D004364:Pharmaceutical Preparations / Q000032:analysis*; D013030:Spain; D062065:Wastewater / Q000737:chemistry / Q000706:statistics & numerical data; D014874:Water Pollutants, Chemical / Q000032:analysis*; D014881:Water Supply / Q000032:analysis / Q000706:statistics & numerical data
chemical_list: D004364:Pharmaceutical Preparations; D062065:Wastewater; D014874:Water Pollutants, Chemical