@article{AichnerBussianLehnikHabrinketal.2015, author = {Aichner, Bernhard and Bussian, Bernd M. and Lehnik-Habrink, Petra and Hein, Sebastian}, title = {Regionalized concentrations and fingerprints of polycyclic aromatic hydrocarbons (PAHs) in German forest soils}, series = {Environmental pollution}, volume = {203}, journal = {Environmental pollution}, publisher = {Elsevier}, address = {Oxford}, issn = {0269-7491}, doi = {10.1016/j.envpol.2015.03.026}, pages = {31 -- 39}, year = {2015}, abstract = {Samples of 474 forest stands in Germany were analysed for concentrations of polycyclic aromatic hydrocarbons (PAHs) in three sampling depths. Enhanced concentrations were mainly found at spots relatively close to densely industrialized and urbanized regions and at some topographically elevated areas. Average enrichment factors between mineral soil and humic layer depend on humus type i.e. decrease from mull via moder to more Based on their compound-patterns, the observed samples could be assigned to three main clusters. For some parts of our study area a uniform assignment of samples to clusters over larger regions could be identified. For instance, samples taken at vicinity to brown-coal strip-mining districts are characterized by high relative abundances of low-molecular-weight PAHs. These results suggest that PAHs are more likely originated from local and regional emitters rather than from long-range transport and that specific source-regions can be identified based on PAH fingerprints. (C) 2015 Elsevier Ltd. All rights reserved.}, language = {en} } @article{BussianPandelovaLehnikHabrinketal.2015, author = {Bussian, Bernd M. and Pandelova, Marchela and Lehnik-Habrink, Petra and Aichner, Bernhard and Henkelmann, Bernhard and Schramm, Karl-Werner}, title = {Persistent endosulfan sulfate is found with highest abundance among endosulfan I, II, and sulfate in German forest soils}, series = {Environmental pollution}, volume = {206}, journal = {Environmental pollution}, publisher = {Elsevier}, address = {Oxford}, issn = {0269-7491}, doi = {10.1016/j.envpol.2015.08.023}, pages = {661 -- 666}, year = {2015}, abstract = {Endosulfan - an agricultural insecticide and banned by Stockholm Convention - is produced as a 2:1 to 7:3 mixture of isomers endosulfan I (ESI) and endosulfan II (ESII). Endosulfan is transformed under aerobic conditions into endosulfan sulfate (ESS). The study shows for 76 sampling locations in German forests that endosulfan is abundant in all samples with an opposite ratio between the ESI and ESII than the technical product, where the main metabolite ESS is found with even higher abundance. The ratio between ESI/ESII and ESS show clear dependence on the type of stands (coniferous vs. deciduous) and humus type and increases from deciduous via mixed to coniferous forest stands. The study argues for a systematic monitoring of ESI, ESII, and ESS and underlines the need for further research, specifically on the fate of endosulfan including biomagnifications and bioaccumulation in soil. (C) 2015 Elsevier Ltd. All rights reserved.}, language = {en} }