Leonard Böhm
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leoboehm.bsky.social
Leonard Böhm
@leoboehm.bsky.social
190 followers 120 following 29 posts
Soil and environmental scientist focusing on organic pollutants: adsorption, bioavailability, and elimination in multiphase systems; SETAC GLB board.
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leoboehm.bsky.social
Great start of the #MMSoilSci Symposium with a Keynote by Edgar Galicia Andrés on the Impact of Computer Simulations in #SoilScience followed by talks from Hessam Yazdani, Hannah Pollak, Milan Předota, and Sébastien Le Crom.
#MolecularModeling @bokuvienna.bsky.social

www.cecam.org/workshop-det...
Edgar Galicia Andrés presenting his talk on the Impact of Computer Simulations in Soil Science
September 24, 2025 at 9:40 PM
leoboehm.bsky.social
Looking forward to three days of the International Symposium 2025 on Molecular modeling in soil science – achievements and perspectives #MMSoilSci hosted at @bokuvienna.bsky.social

www.cecam.org/workshop-det...
Signpost to the symposium Get together at BOKU University
September 24, 2025 at 12:37 PM
leoboehm.bsky.social
Happy to share our new publication "Between Underground and the Deep Blue Sea: Contamination of Mine Water Effluents by Polychlorinated Biphenyls (PCBs)". 🧪

Read more on PCB concentrations, congener patterns, annual loads, and origins in ACS ES&T Water (open access):

doi.org/10.1021/acse...
Graphical abstract of the publication "Between Underground and the Deep Blue Sea: Contamination of Mine Water Effluents by Polychlorinated Biphenyls (PCBs)" published in ACS EST Water 2023. Presented is a drawing of flooded mine tunnels from which water is pumped and discharged to rivers. A low volume sample aliquot is shown for analysis by SPME. Additionally, an excerpt of a bar chart is shown with congener specific PCB concentrations.
November 28, 2023 at 9:39 PM
leoboehm.bsky.social
Check out Hanauer et al. in Geoderma regional on soil distribution and properties in the subalpine Kazbegi region, Greater Caucasus, Georgia

mountain soils on various parent substrates, land use management, organic matter accumulation

Free access until Dec 28
authors.elsevier.com/c/1i2~Z_rUdy...
Synthetic soil map of the subalpine Kazbegi, region, Greater Caucasus, Georgia. Fig. 7 of the publication Hanauer et al. 2023, Geoderma Regional Volume 35, December 2023, e00734.
November 20, 2023 at 7:42 PM
leoboehm.bsky.social
From the ClayHOC project: our publication on adsorption of the hydrophobic organic pollutant hexachlorobenzene (HCB) to phyllosilicate minerals

Read more (Environmental Science and Pollution Research, open access):
doi.org/10.1007/s113...
Photography of the 12 natural phyllosilicate clays used in the publication. The clays are in powder form on a ceramic plate and show different colours (e.g. white, grey, brown, ...). Photo: Leonard Böhm Figure 1 from the publication (Böhm et al. 2023 ESPR, https://doi.org/10.1007/s11356-022-24818-4). Adsorption isotherms for the interaction of HCB with the cation-modified clay mineral montmorillonite STx-1b. Homoionic cation exchange was performed with a) alkali metal cations, and b) alkaline earth metal cations (clay mineral concentration: 10 g L−1; particle size fraction: < 2 µm, HCB concentration: 1–5 µg L−1). Note different scales of y-axes. All isotherms in Fig. 1b are in the range of adsorption to Na+-modified montmorillonite in Fig. 1a Left panel shows increasing adsorption with increasing radius of alkali metal cations used for cation-exchange (except for Li that is comparable with K). Right panel shows equal adsorption independant of radius of alkaline earth metal cations used for cation-exchange. Figure 2 from the publication (Böhm et al. 2023, ESPR, https://doi.org/10.1007/s11356-022-24818-4) Adsorption of HCB in the presence of cation-exchanged montmorillonite (CMS, STx-1b). Exchange was performed with alkali and alkaline earth metals. Left panel shows relation between log Kd and the period of table of elements: log Kd is increasing depending on increasing atomic number after alkali cation modification of clay, but not after alkaline earth cation modification of clay. Right panel shows relation between log Kd and hydrated radius: Higher hydrated radius of alkaline earth cations compared to hydrated radius of alkali cations shows grouping without overlapping.
November 18, 2023 at 12:36 AM