Screening Bioavailable Hydrophobic Toxicants in Surface Waters with Semipermeable Membrane Devices: Role of Inherent Oleic Acid in Toxicity Evaluations

Sabaliūnas, Darius; Ellington, J. Jackson; Sabaliūnien, I.

doi:10.1006/eesa.1999.1802

Cited by 28 publications

(9 citation statements)

References 24 publications

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“…Earlier, SPMDs were generally used as inexpensive and semi-quantitative or quantitative sampling tools for concentrating the dissolved fraction of a wide spectrum of organic pollutants from various environmental compartments, such as air, water and sediment pore water (Booij and van Drooge, 2001;Bartkow et al, 2004;Sabaliunas et al, 1999;Vrana et al, 2001).…”

Section: Introductionmentioning

confidence: 98%

PAH and PCB removal efficiencies in Umeå (Sweden) and Šiauliai (Lithuania) municipal wastewater treatment plants

Bergqvist

Augulyte

Jurjonienė

2006

Water Air Soil Pollut

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Dissolved concentrations of polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs) in the influents and effluents of two municipal sewage treatment plants (STPs) were monitored over 16-(Umeå, Sweden) and 22-(Šiauliai, Lithuania) day sampling periods. Sampling was performed using a passive sampling technique (semipermeable membrane devices; SPMDs) for sequestration of the dissolved (readily bioavailable) fraction of persistent organic pollutants (POPs). Removal efficiencies for individual low molecular weight (LMW) PAH compounds varied from 84% to levels at which the compounds were not detected in effluents from Umeå. The corresponding efficiencies of theŠiauliai plant were 33-95%. Measurements revealed that dissolved concentrations of most of the PCBs and some of the high molecular weight (HMW) PAHs increased during the conventional wastewater treatment at both plants. The release of dissolved PAHs and PCBs in the effluents from municipal wastewater treatment plants might increase the environmental contamination by readily bioavailable pollutants in the recipient waters; the rivers Umeälven and Kulpè. SPMDs were found to be suitable sampling tools for long-term (weeks-month) integrative monitoring of trace concentrations of the dissolved fraction of hydrophobic pollutants in the wastewater process, since the sampling and clean-up steps were easy to perform.

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Section: Introductionmentioning

confidence: 98%

PAH and PCB removal efficiencies in Umeå (Sweden) and Šiauliai (Lithuania) municipal wastewater treatment plants

Bergqvist

Augulyte

Jurjonienė

2006

Water Air Soil Pollut

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“…Other researchers have observed toxic responses above basal levels as a result of bioassay exposure to field and laboratory blank SPMD extracts (Sabaliunas et al, 1998; Sabaliunas et al, 1999; Sabaliunas et al, 2000; Springman et al, 2008). This has been attributed to co-dialyzed impurities in the SPMD, such as polyethylene oligomers, oleic acid, methyl oleate and elemental sulfur (Petty et al, 2000).…”

Section: Discussionmentioning

confidence: 98%

Exploiting lipid-free tubing passive samplers and embryonic zebrafish to link site specific contaminant mixtures to biological responses

et al. 2010

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The BRIDGES (Biological Response Indicator Devices Gauging Environmental Stressors) bio-analytical tool was developed in response to the need for a quantitative technology for assessing the toxicity of environmentally relevant contaminant mixtures. This tool combines passive samplers with the embryonic zebrafish model. When applied in an urban river it effectively linked site specific, bioavailable contaminant mixtures to multiple biological responses. Embryonic zebrafish exposed to extracts from lipid-free passive samplers that were deployed at five locations, within and outside of the Portland Harbor Superfund Megasite, displayed different responses. Six of the eighteen biological responses observed in 941 exposed zebrafish were significantly different between sites. This demonstrates the sensitivity of the bio-analytical tool for detecting spatially distinct toxicity in aquatic systems; bridging environmental exposure to biological response.

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“…Thus, they are believed to provide an interesting tool for future EDA of potential bioaccumulating toxicants in aqueous environments even if problems with blank toxicity (e.g. due to oleic acids) remain to be solved [20].…”

Section: Aqueous Samplesmentioning

confidence: 99%

Effect-directed analysis: a promising tool for the identification of organic toxicants in complex mixtures?

Brack

2003

Analytical and Bioanalytical Chemistry

398

238

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Wastewater effluents, groundwater, surface water, sediments, soils and air particulate matter are often contaminated by a multitude of chemicals. Since often no a priori knowledge of relevant toxicants exists, chemical analysis alone is not an appropriate tool for hazard assessment. Instead, a linkage of effect data and hazardous compounds is required. For that purpose, effect-directed analysis (EDA) was developed, which is based on a combination of biotesting, fractionation procedures and chemical analytical methods. Since a controversial discussion about the prospects of success in relation to the expense exists, the current methodological state of EDA for organic toxicants in complex mixtures and important results are reviewed in this paper with the aim of establishing criteria for the successful use of this promising tool. While EDA is a powerful tool to identify specifically acting individual toxicants close to the source of emission, it is inappropriate for screening purposes and often may fail in remote areas where the concentrations of specific toxicants are too low relative to the nonspecific toxicity of the whole mixture of natural and anthropogenic compounds. The biological tools have to be carefully selected with respect to their ability to detect specific effects and their significance in hazard assessment. Sophisticated chemical tools are required to identify individual toxicants in mixtures of thousands of compounds, which are typical for contaminated environments.

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Screening Bioavailable Hydrophobic Toxicants in Surface Waters with Semipermeable Membrane Devices: Role of Inherent Oleic Acid in Toxicity Evaluations

Cited by 28 publications

References 24 publications

PAH and PCB removal efficiencies in Umeå (Sweden) and Šiauliai (Lithuania) municipal wastewater treatment plants

PAH and PCB removal efficiencies in Umeå (Sweden) and Šiauliai (Lithuania) municipal wastewater treatment plants

Exploiting lipid-free tubing passive samplers and embryonic zebrafish to link site specific contaminant mixtures to biological responses

Effect-directed analysis: a promising tool for the identification of organic toxicants in complex mixtures?

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