Effect-directed analysis: a promising tool for the identification of organic toxicants in complex mixtures?
- W. Brack
- Environmental ScienceAnalytical and Bioanalytical Chemistry
- 6 August 2003
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.
Organic chemicals jeopardize the health of freshwater ecosystems on the continental scale
- Egina Malaj, P. C. von der Ohe, R. Schäfer
- Environmental ScienceProceedings of the National Academy of Sciences
- 16 June 2014
It is provided strong evidence that chemicals threaten the ecological integrity and consequently the biodiversity of almost half of the water bodies on a continental scale, based on the analysis of governmental monitoring data from 4,000 European sites.
Effect-directed analysis supporting monitoring of aquatic environments--An in-depth overview.
- W. Brack, S. Ait-Aissa, M. Krauss
- Environmental ScienceScience of the Total Environment
- 15 February 2016
Identification of novel micropollutants in wastewater by a combination of suspect and nontarget screening.
- C. Hug, Nadin Ulrich, T. Schulze, W. Brack, M. Krauss
- EngineeringEnvironmental Pollution
- 2014
Bioassay-Directed Identification of Organic Toxicants in River Sediment in the Industrial Region of Bitterfeld (Germany)—A Contribution to Hazard Assessment
- W. Brack, R. Altenburger, U. Ensenbach, M. Möder, H. Segner, G. Schüürmann
- Environmental ScienceArchives of Environmental Contamination and…
- 1 August 1999
Results indicate high toxicant loads in the sediment about 7 years after closedown of a majority of chemical production sites at Bitterfeld, and indicate a severe hazard potential to aquatic organisms due to organic toxicants.
Chlorophyll a fluorescence: a tool for the investigation of toxic effects in the photosynthetic apparatus.
The effects of environmental pollutants and the photosynthesis of green algae were investigated by using detailed analysis of chlorophyll a fluorescence, suggesting an inhibition of utilization of proton-motive force for ATP synthesis.
Effect-directed identification of oxygen and sulfur heterocycles as major polycyclic aromatic cytochrome P4501A-inducers in a contaminated sediment.
- W. Brack, K. Schirmer
- ChemistryEnvironmental Science and Technology
- 14 June 2003
Heterocyclic polyaromatic compounds, including dinaphthofurans, 2-(2-naphthalenyl)benzothiophene, methylated chrysene, and benz[a]anthracene, were identified and confirmed as major cytochrome P4501A…
A new risk assessment approach for the prioritization of 500 classical and emerging organic microcontaminants as potential river basin specific pollutants under the European Water Framework Directive.
- P. C. von der Ohe, V. Dulio, W. Brack
- Environmental ScienceScience of the Total Environment
- 1 May 2011
Polycyclic aromatic hydrocarbon (PAH) contamination of surface sediments and oysters from the inter-tidal areas of Dar es Salaam, Tanzania.
- L. Gaspare, J. Machiwa, S. Mdachi, G. Streck, W. Brack
- Environmental ScienceEnvironmental Pollution
- 2009
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