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 […]

New publication: Environmental risk or benefit? Comprehensive risk assessment of groundwater treated with nano Fe0-based Carbo-Iron®

For the treatment of groundwater contaminated with chlorinated hydrocarbons, nano-scaled zero-valent iron (nano Fe0) represents an efficient alternative to other treatments as e.g. pump & treat. Upon selection of a suitable treatment method for a given groundwater a risk-cost-benefit analysis is performed. This analysis does only rarely consider the potential risk of the remediation method […]

New publication: Compartment‐specific screening tools for persistence – potential role and application in the regulatory context

The persistence assessment under REACH relies on compartment‐specific degradation half‐lives derived from laboratory simulation studies with surface water, aquatic sediment or soil. Although these data are given priority, they are not available for most of the compounds. Therefore, according to the integrated assessment and testing strategy for persistence assessment, results from ready biodegradability tests are […]

Development and standardisation of an ecotoxicological test method using fungus gnat larvae for the risk assessment of genetically modified plants

Prior to releasing a genetically modified plant (GMP) into the environment and placing it on the market in the European Union, an environmental risk assessment has to be performed according to Directive 2001/18/EC. Based on the results of a previous project conducted from 2012 to 2016 (for more information, see the project description and the […]

New publication: Impact of an immunosuppressive human pharmaceutical on the interaction of a bacterial parasite and its invertebrate host

The interaction of pollutants and pathogens may result in altered (often enhanced) effects of the chemical, the biotic stressor or both. While standardised detection methods for immunotoxic effects of chemicals exist with regard to human health, such test systems are lacking for invertebrate species and no guidance is available on how immunotoxic effects of a […]

Further development of simple test systems for the evaluation of potential PBT substances: How to bridge the gap between screening tests and complex studies?

The first aim of the project is to assess whether the existing OECD test guidelines for ready biodegradability of chemicals (OECD test guidelines 301 A–D and 310) can be harmonized. The gained insights will be discussed at an international expert workshop in 2019. Laboratory experiments will be performed for a set of selected test substances […]

New publication on potential synergistic interaction between fungicides in toxicity tests with Raphidocelis subcapitata

Products used for plant protection or as biocides often contain more than one active substance together with numerous formulation additives. The environmental risk assessment for such commercial mixtures applies as default the concept of concentration addition. There is remaining regulatory concern, however, that underestimation of risks can occur if components in the mixture interact synergistically, […]

New publication: Prospective environmental risk assessment of mixtures in wastewater treatment plant effluents

The aquatic environment is continually exposed to a complex mixture of chemicals, with effluents of wastewater treatment plants (WWTPs) as one key source. The aim of the present study was to investigate whether environmental risk assessments addressing individual substances are sufficiently protective for such mixtures. Based on a literature review of chemicals reported to occur […]