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Titolo:
Determination of uptake kinetics (Sampling rates) by lipid-containing semipermeable membrane devices (SPMDs) for polycyclic aromatic hydrocarbons (PAHs) in water
Autore:
Huckins, JN; Petty, JD; Orazio, CE; Lebo, JA; Clark, RC; Gibson, VL; Gala, WR; Echols, KR;
Indirizzi:
US Geol Survey, Columbia Environm Res Ctr, Columbia, MO 65201 USA US Geol Survey Columbia MO USA 65201 ronm Res Ctr, Columbia, MO 65201 USA Chevron Res & Technol Co, Richmond, CA 94802 USA Chevron Res & Technol CoRichmond CA USA 94802 Co, Richmond, CA 94802 USA
Titolo Testata:
ENVIRONMENTAL SCIENCE & TECHNOLOGY
fascicolo: 21, volume: 33, anno: 1999,
pagine: 3918 - 3923
SICI:
0013-936X(19991101)33:21<3918:DOUK(R>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
ORGANOCHLORINE PESTICIDE-RESIDUES; MONITORING ORGANIC CONTAMINANTS; MYTILUS-EDULIS; RIVER; MUSSELS; ACCUMULATION; SAMPLERS; MODEL; AIR;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Engineering, Computing & Technology
Citazioni:
32
Recensione:
Indirizzi per estratti:
Indirizzo: Huckins, JN US Geol Survey, Columbia Environm Res Ctr, 4200 New Haven Rd, Columbia, MO65201 USA US Geol Survey 4200 New Haven Rd Columbia MO USA 65201 201 USA
Citazione:
J.N. Huckins et al., "Determination of uptake kinetics (Sampling rates) by lipid-containing semipermeable membrane devices (SPMDs) for polycyclic aromatic hydrocarbons (PAHs) in water", ENV SCI TEC, 33(21), 1999, pp. 3918-3923

Abstract

The use of lipid-containing semipermeable membrane devices (SPMDs) is becoming commonplace, but very little sampling rate data are available for the estimation of ambient contaminant concentrations from analyte levels in exposed SPMDs. We determined the aqueous sampling rates (R(S)s; expressed as effective volumes of water extracted daily) of the standard (commercially available design) 1-g triolein SPMD for 15 of the priority pollutant (PP) polycyclic aromatic hydrocarbons (PAHs) at multiple temperatures and concentrations. Under the experimental conditions of this study, recovery-corrected R-S values for PP PAHs ranged from approximate to 1.0 to 8.0 L/d. These values would be expected to be influenced by significant changes (relative to this study) in water temperature, degree of biofouling, and current velocity-turbulence. Included in this paper is a discussion of the effects of temperature and octanol-water partition coefficient (K-OW); the impacts of biofouling and hydrodynamics are reported separately. Overall, SPMDs responded proportionally to aqueous PAH concentrations; i.e., SPMD R-S values and SPMD-water concentration factors were independent of aqueous concentrations. Temperature effects (10, 18, and 26 degrees C) on R-S values appeared to be complex but were relatively small.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 03/04/20 alle ore 20:28:55