Tag Archive for: pesticides

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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New project started: ARISTO

As acknowledged by the European Food Safety Authority (EFSA) soil microorganisms play a key role in ecosystem functioning and there is a lack of appropriate methods to assess impacts on them. ARISTO, the European Industry-Academia Network for Revising and Advancing the Assessment of the Soil Microbial Toxicity of Pesticides, started in 2021 and addresses this […]

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The European industry-academia network for revising and advancing the assessment of the soil microbial toxicity of pesticides (ARISTO)

The European Commission has imposed a stringent regulatory scheme for pesticide authorisation, which includes an assessment of potential risks for aquatic organisms and terrestrial macro-organisms. However, the assessment of the toxicity of pesticides on soil microorganisms relies on a protocol that does not identify effects on key microbial functions and on microbial diversity. As acknowledged […]

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D. Leib

New publication: Toxicity of carbendazim to earthworms under tropical and temperate conditions

Research on potential side-effects of pesticides on beneficial organisms has focused on temperate test species and conditions. Thus, there is a need for ecotoxicity studies for pesticides under tropical conditions. The present study aimed to compare the acute and chronic toxicity of the fungicide carbendazim to the earthworm Eisenia fetida under tropical and temperate conditions. […]

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J. Römbke

Review: Environmental risk assessment of pesticides in tropical terrestrial ecosystems

Despite the increasing use of pesticides in tropical countries, research and legislative efforts have focused on their temperate counterparts. In the present publication, the literature on environmental risk assessment of pesticides in tropical terrestrial ecosystems is reviewed. Potential differences in pesticide risks between temperate and tropical regions are evaluated, and research needs for tropical regions […]

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New developments in the toxicity testing of soil organisms – protecting soil biodiversityD. Leib

Further development of toxicity tests with soil organisms – protection of biodiversity in soils

The project objective was to identify and quantify uncertainties that occur in the environmental risk assessment (ERA) of pesticides, specifically for the soil compartment. The project was based on the assessment that the general approach of employing surrogate species and experimental setups to assess the effects of pesticides has certain shortcomings that affect the outcome […]

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Further news on the Euro-Mediterranean Conference on Environmental Integration

Further news on the Euro-Mediterranean Conference on Environmental Integration

About 500 scientists representing more than 20 countries participated in the 1st Euro-Mediterranean Conference on Environmental Integration (EMCEI) that took place in Sousse (Tunisia) from 22 to 25 November 2017. ECT co-organised this conference, actively contributing via a keynote speech on environmental risk assessment of pesticides in soil, and by chairing two sessions on environmental […]

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Lumbriculus test recommended by EFSA

The newly proposed EFSA guidance document on risk assessment for plant protection products for aquatic organisms1 recommends the Lumbriculus test (instead of the Chironomus test) specifically for pesticides with fungicidal activity. ECT coordinated the validation ring test for the Lumbriculus OECD test guideline […]

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