Inside-sediment partitioning of PAH, PCB and organochlorine compounds and inferences on sampling and normalization methods

Publikation: Beiträge in ZeitschriftenZeitschriftenaufsätzeForschungbegutachtet


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.
ZeitschriftEnvironmental Pollution
Seiten (von - bis)924-931
Anzahl der Seiten8
PublikationsstatusErschienen - 04.2011

Bibliographische Notiz

Issue 4, April 2011


  • Chemie - Organic pullutants, Grain-size partitioning, Organic carbon, Sediment, Normalization