New publication on TKTD modeling of sublethal endpoints for time‐variable toxicant exposure of CeriodaphniaK. Duis

New publication on TKTD modeling of sublethal endpoints for time‐variable toxicant exposure of Ceriodaphnia

Toxicokinetic-toxicodynamic (TKTD) modeling can integrate all available data from individual‐level bioassays into a single framework and enable refined risk assessments by extrapolating from laboratory results to time‐variable exposure scenarios. Dynamic energy budget (DEB) models coupled with TKTD modules (DEB-TKTD) are an approach to assess and predict sublethal effects of chemicals on individual organisms. However, thorough […]

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In-house analytical servicesK. Duis

In-house analytical services

In-house analytical services under GLP are now available at ECT. Analytical verification of actual test concentrations is essential in ecotoxicity studies, and we are now prepared to provide this service in-house.

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Report published on the evaluation of soil biodiversity via DNA from soil organism samplesK. Duis

Report published on the evaluation of soil biodiversity via DNA from soil organism samples

Germany still lacks a nationwide and standardised survey of soil organisms, although a comprehensive infrastructure for such a survey is available with approx. 800 permanent soil monitoring sites (Bodendauer­beobachtungsflächen, BDF). At present, not all federal states perform biodiversity surveys on their permanent soil monitoring sites. This is most likely due to the fact that the […]

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Chemical sensitivity of earthworms from field populationsD. Leib

New publication on chemical sensitivity of earthworms from field populations

The environmental risk of pesticides for nontarget soil macroorganisms has mainly been assessed using the compost earthworm Eisenia fetida. However, E. fetida does not occur in agroecosystems and it is generally less sensitive than other earthworm species. Thus, the extrapolation of its response to pesticides to other earthworm species may lead to uncertainties in the […]

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