Organic matter decomposition is a key soil microbiological function. Intact organic matter decomposition and nutrient cycling indicate that a soil is healthy. In view of these facts, a laboratory-based method has been developed to quantitatively evaluate this process. The ability of soil micro-organisms to decompose filter paper (lignin cellulosic material) as a standard organic material […]
With regard to terrestrial ecotoxicity testing methods, boreal regions (including the inhabiting species) are under-represented. For this reason, Environment Canada has developed a new test method with an oribatid mite that is applicable to both boreal and temperate regions.
Veterinary medicinal products administered to animals are excreted with urine and faeces. For animals housed in stables, the resulting manure is collected and stored before being spread onto agricultural land. Disinfection products used to sanitize stables are also transferred into the manure. Therefore, the spreading of manure is an important pathway of introducing veterinary medicines, […]
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 […]
The aim of the project was the validation of a sediment bioaccumulation test with endobenthic oligochaetes by an international ring test. The test method was developed taking into account existing methods (UBA-reports 298 67 419 (1999) and 206 03 106/03 (1999)). A test protocol was prepared and used to run the test. A total of […]
The aim of the project was the validation of a sediment toxicity test with the benthic oligochaete Lumbriculus variegatus by an international ring test. The test method was developed taking into account existing methods. A test protocol was prepared and used to run the test. A total of 14 institutions (governmental agencies, universities, contract laboratories […]
The ecotoxicological characterization of waste is part of its assessment as hazardous or non-hazardous according to the European List of Wastes (LoW, 2000/532/EC) and its more recent amendments (Directive 2008/98/EG and Regulation 2017/997). For this assessment, 15 hazard properties are evaluated. So far, there is no harmonised guidance for evaluation of the hazard property ‘ecotoxic’ […]
The aim of the project was the validation of a bioaccumulation test with terrestrial organisms (soil dwelling oligochaetes) by an international ring test. The test method was developed taking into account existing methods (UBA-reports 206 03 909 (1997) and 298 64 416 (2001)). A test protocol was prepared and used to run the test. A […]
An enchytraeid reproduction test ring test was performed in line with OECD requirements. Twenty-nine institutions (mainly universities and contract research laboratories) from 15 countries from Europe and North America participated in this ring test. The co-ordinating laboratory centrally distributed the test chemicals, guidance papers and test organisms to all participants. In addition, several training courses […]
K. Duis