title: Nonylphenols in freshwaters of the hydrologic system of an Italian district: association with human activities and evaluation of human exposure.
abstract: A sampling campaign for the determination of concentrations of nonylphenol isomers (NPs) in freshwaters and sediments of the hydrologic system of the Rieti district (central Italy) was conducted from 2002 to 2003. Eighteen sampling points, selected on the basis of the different human activities in the vicinity, were monitored; six series of water samples (from June 2002 to February 2003) and one of sediment samples (summer 2002) were analyzed by GC/MS. There was a direct relationship between concentrations of NPs and the presence of urban or industrial activities near the sampling point. However, concentrations of NPs in water were in the range of < 0.1-1.4 microg l(-1), and their presence limited to short distances from the sources of contamination. Accumulation factors in sediment samples ranged from 10(2) to 5x10(3).
authors.affiliation: Dipartimento di Scienze di Sanità Pubblica "G. Sanarelli", Università degli Studi di Roma "La Sapienza", Piazzale Aldo Moro, 5 00185 Rome, Italy. matteo.vitali@uniromal.it
authors.forename: Matteo
authors.initials: M
authors.lastname: Vitali
authors.forename: Francesca
authors.initials: F
authors.lastname: Ensabella
authors.forename: Daniela
authors.initials: D
authors.lastname: Stella
authors.forename: Maurizio
authors.initials: M
authors.lastname: Guidotti
mesh_terms: D004781:Environmental Exposure / Q000032:analysis* / Q000331:legislation & jurisprudence; D004784:Environmental Monitoring / Q000706:statistics & numerical data*; D005618:Fresh Water / Q000032:analysis*; D008401:Gas Chromatography-Mass Spectrometry; D019015:Geologic Sediments / Q000032:analysis*; D006801:Humans; D007558:Italy; D010636:Phenols / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D010636:Phenols; D014874:Water Pollutants, Chemical; C025256:nonylphenol