Inside-sediment partitioning of PAH, PCB and organochlorine compounds and inferences on sampling and normalization methods
Publikation: Beiträge in Zeitschriften › Zeitschriftenaufsätze › Forschung › begutachtet
Authors
Comparability of sediment analyses for semivolatile organic substances is still low. Neither screening of the sediments nor organic-carbon based normalization is sufficient to obtain comparable results. We are showing the interdependency of grain-size effects with inside-sediment organic-matter distribution for PAH, PCB and organochlorine compounds. Surface sediment samples collected by Van-Veen grab were sieved and analyzed for 16 PAH, 6 PCB and 18 organochlorine pesticides (OCP) as well as organic-matter content. Since bulk concentrations are influenced by grain-size effects themselves, we used a novel normalization method based on the sum of concentrations in the separate grain-size fractions of the sediments. By calculating relative normalized concentrations, it was possible to clearly show underlying mechanisms throughout a heterogeneous set of samples. Furthermore, we were able to show that, for comparability, screening at <125 μm is best suited and can be further improved by additional organic-carbon normalization.
| Originalsprache | Englisch | 
|---|---|
| Zeitschrift | Environmental Pollution | 
| Jahrgang | 159 | 
| Ausgabenummer | 4 | 
| Seiten (von - bis) | 924-931 | 
| Anzahl der Seiten | 8 | 
| ISSN | 0269-7491 | 
| DOIs | |
| Publikationsstatus | Erschienen - 04.2011 | 
Bibliographische Notiz
Issue 4, April 2011
- Gesundheit, Toxikologie und Mutagenese
 - Toxikologie
 - Umweltverschmutzung
 
ASJC Scopus Sachgebiete
- Chemie - Organic pullutants, Grain-size partitioning, Organic carbon, Sediment, Normalization
 
