PMID: 15230316Jul 3, 2004Paper

Development of a passive, in situ, integrative sampler for hydrophilic organic contaminants in aquatic environments

Environmental Toxicology and Chemistry
David A AlvarezStanley E Manahan

Abstract

Increasingly it is being realized that a holistic hazard assessment of complex environmental contaminant mixtures requires data on the concentrations of hydrophilic organic contaminants including new generation pesticides, pharmaceuticals, personal care products, and many chemicals associated with household, industrial, and agricultural wastes. To address this issue, we developed a passive in situ sampling device (the polar organic chemical integrative sampler [POCIS]) that integratively concentrates trace levels of complex mixtures of hydrophilic environmental contaminants, enables the determination of their time-weighted average water concentrations, and provides a method of estimating the potential exposure of aquatic organisms to the complex mixture of waterborne contaminants. Using a prototype sampler, linear uptake of selected herbicides and pharmaceuticals with log K(ow)s < 4.0 was observed for up to 56 d. Estimation of the ambient water concentrations of chemicals of interest is achieved by using appropriate uptake models and determination of POCIS sampling rates for appropriate exposure conditions. Use of POCIS in field validation studies targeting the herbicide diuron in the United Kingdom resulted in the detection of...Continue Reading

Citations

Jun 2, 2007·Bulletin of Environmental Contamination and Toxicology·Per-Anders BergqvistAudrone Zaliauskiene
Nov 2, 2006·Analytical and Bioanalytical Chemistry·Graham A MillsRichard Greenwood
Dec 29, 2007·Analytical and Bioanalytical Chemistry·Jirí KohoutekBlahoslav Marsálek
Nov 20, 2009·Analytical and Bioanalytical Chemistry·Bozena ZabiegałaJacek Namieśnik
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