Latest Documents


  • 14-November-2014

    English

    Global Pollutant Release and Transfer Register (PRTR): Proposal for a harmonised list of pollutant

    PRTR have been established throughout the world to track releases and transfers of potentially harmful chemicals. But most of the PRTR systems were designed without considering comparability, each PRTR has its own requirement of reporting chemicals and sectors. To harmonise globally, OECD reviewed the reporting chemicals and sectors across PRTR systems and produced proposal for harmonised lists of reporting pollutants.

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  • 20-October-2014

    English

    OECD encourages the development of non-animal test methods for the detection of thyroid disrupters

    The OECD Advisory Group on Endocrine Disrupters Testing and Assessment met on 16-17 October 2014 in Paris to discuss the development and update of Test Guidelines and related documents for endocrine disrupters testing and assessment.

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  • 2-October-2014

    English

    Report of the pilot exercise on classifications for selected chemicals assessed at CoCAM

    The OECD has published a report on a pilot chemical classification exercise undertaken in 2013 and ‘14. Using a number of chemical assessments agreed in the OECD hazard assessment programme, reasons why classification proposals may differ were investigated. The report concludes on the main reasons for such differences, and recommends some measures to overcome some of them.

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  • 29-September-2014

    English

    New, updated and corrected OECD Test Guidelines for the testing of chemicals – 26 September 2014

    On 26 September 2014, the OECD Council adopted three new, five updated and one corrected OECD Test Guidelines for the testing of chemicals.

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  • 26-September-2014

    English

    Test No. 310: Ready Biodegradability - CO2 in sealed vessels (Headspace Test)

    This Test Guideline is a screening method for the evaluation of ready biodegradability of chemicals.

    The test substance, normally at 20 mg C/L, as the sole source of carbon and energy, is incubated (during 28 days normally) in sealed bottles with aerobic condition containing a buffer-mineral salts medium, which has been inoculated with a mixed population of micro-organisms. In order to check the test procedure, a reference substance (aniline, sodium benzoate or ethylene glycol and 1-octanol) of known biodegradability should be tested in parallel. It is recommended that triplicate bottles be analysed after a sufficient number of time intervals. Also at least five test bottles (from test vessels, blank controls, and vessels with the reference substance) are analysed at the end of the test, to enable 95% confidence intervals to be calculated for the mean percentage biodegradation value. The CO2 evolution resulting from the ultimate aerobic biodegradation of the test substance is determined by measuring the Inorganic Carbon (IC) produced in the test bottles in excess of that produced in blank vessels containing inoculated medium only. The extent of biodegradation is expressed as a percentage of the theoretical maximum IC production (ThIC), based on the quantity of test substance added initially. Biodegradation >60% ThIC within the 10-d window in this test demonstrates that the test substance is readily biodegradable under aerobic conditions.

  • 26-September-2014

    English, PDF, 293kb

    OECD Guidance on the GLP Requirements for Peer Review of Histopathology

    This advisory document provides guidance on how pathology peer reviews should be planned, conducted and reported within the context of OECD Good Laboratory Practice.

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  • 26-September-2014

    English

    OECD Guidance on the GLP Requirements for Peer Review of Histopathology

    This advisory document provides guidance on how pathology peer reviews should be planned, conducted and reported within the context of OECD Good Laboratory Practice.

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  • 25-September-2014

    English

    OECD launches its knowledge base on Adverse Outcome Pathways

    The OECD is pleased to announce, together with the U.S Environmental Protection Agency and the European Commission Joint Research Centre, the Adverse Outcome Pathway Knowledge Base (AOP KB). This is a web-based platform which aims to bring together all the knowledge on how chemicals can induce adverse effects, therefore providing a focal point for AOP development and dissemination.

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  • 15-September-2014

    English

    Report on OECD Workshop on Children’s exposure to chemicals

    This document presents the results of the workshop on children’s exposure to chemicals on 7-8 October 2013 in Utrecht, the Netherlands. The main outcomes are 1) a decision tree to enable risk assessors to decide when they should perform children specific exposure and risk assessment, and 2) recommendations for further work on specific exposure assessment issues.

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  • 3-September-2014

    English

    The Guidance Document for Using the OECD (Q)SAR Application Toolbox to Develop Chemical Categories According to the OECD Guidance on Grouping Chemicals

    This document provides guidance on how to use the OECD (Q)SAR Application Toolbox to build chemical categories according to the OECD Guidance on Grouping of Chemicals. It is part of an overall effort to provide guidance on the use of the (Q)SAR Application Toolbox.
     

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