By Date


  • 31-January-2017

    English

    Publications in the Series on the Safety of Manufactured Nanomaterials

    The purpose of this Series is to provide up-to-date information on the OECD activities related to human health and environmental safety. Read our latest report on "Strategy for using metal impurities as carbon nanotube tracers".

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  • 5-January-2017

    English

    Testing Programme of Manufactured Nanomaterials

    The safety of Manufactured Nanomaterials is an important concern impacting regulatory bodies throughout the world. Due to their size, Manufactured Nanomaterials may require additional testing beyond the standard suite of tests used for other chemicals, to ensure that the impact on human health and the environment is fully understood - download Manufactured Nanomaterials Dossiers or search for Tested Endpoints.

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  • 18-October-2016

    English

    Developmental neurotoxicity: OECD/EFSA experts discuss non-animal test methods

    Participants from 15 countries attended the Workshop on Developmental Neurotoxicity: The use of non-animal test methods for regulatory purposes” on 18 October 2016, in Belgium. The event, co-organised by the OECD and the European Food Safety Authority (EFSA), focused on opportunities and challenges related to alternative methods for testing and assessing the DNT potential of chemicals.

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  • 20-September-2016

    English

    OECD publishes new and updated Test Guidelines for effects on human health and on environmental species

    The OECD Guidelines for the Testing of Chemicals is a collection of about 150 of the most relevant internationally agreed testing methods used by government, industry and independent laboratories to identify and characterise potential hazards of chemicals. Every year new and updated Test Guidelines are adopted to meet the regulatory needs in OECD member countries. The most recent Test Guidelines were adopted in July 2016.

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  • 15-September-2016

    English

    Introduction to Pollutant Release and Transfer Registers (PRTRs)

    A Pollutant Release and Transfer Register (PRTR) is a publicly accessible database or inventory of chemicals or pollutants released to air, water and soil and transferred off-site for treatment. Find out more: What hazardous chemical substances and pollutants are being released to the environment or transferred off-site? How much is being released or transferred off-site over time? Where the releases occur? and by whom?

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  • 2-September-2016

    English

    Section 4: Health Effects

    New deadlines for comments: Draft updated TG 492 on RhCE for eye hazard potential and draft updated performance standards for the validation of similar methods. The deadline for public comments of 3 October 2016.

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  • 5-August-2016

    English

    IOMC Toolbox for Chemical Accidents

    The IOMC Toolbox is a tool enabling countries to identify the most appropriate and efficient actions to solve specific national problems related to chemicals management.

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  • 5-August-2016

    English

    Environment, health and safety briefs

    These four current EHS briefs show the objectives, outcomes and benefits of the Pesticides, (Q)SARs, MAD and PFCs programmes.

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  • 29-juillet-2016

    Français

    Essai n° 242: Essai de reproduction chez Potamopyrgus antipodarum

    Le test de reproduction chez l'espèce Potamopyrgus antipodarum (hydrobie des antipodes) a pour objet l’évaluation des effets potentiels d’une exposition prolongée aux produits chimiques sur la reproduction et la survie de lignées parthénogénétiques de cet escargot d’eau douce. À cet effet, on expose des femelles adultes à une gamme de concentrations du produit chimique testé. Le produit chimique testé est mélangé à de l’eau de dilution (eau reconstituée), ajouté aux béchers destinés à l’essai, puis des escargots adultes sont placés dans les béchers. Si l’essai porte sur des « produits chimiques difficiles » (c’est-à-dire volatiles, instables, facilement biodégradables ou adsorbants), il est possible de conduire l’essai en conditions dynamiques, en s’écartant de la conception semi-statique avec renouvellement du milieu à intervalles réguliers. On étudie la survie de P. antipodarum au cours de la période d’exposition de 28 jours, et la reproduction à l’issue des 28 jours d’exposition au produit chimique testé. La reproduction est mesurée par le nombre d'embryons contenus dans la poche embryonnaire (sans distinction du stade de développement) à la fin de la période d'exposition de 28 jours. L’effet toxique du produit chimique testé sur le nombre d’embryons est exprimé sous la forme d’une CEx, établie en appliquant aux données un modèle d’ajustement adapté afin d'estimer la concentration qui produirait une réduction de x % du nombre d’embryons. Il est également possible d’exprimer l’effet toxique du produit testé par la concentration sans effet observé et la concentration minimale avec effet observé (CSEO/CMEO).

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  • 29-July-2016

    English

    Test No. 442E: In Vitro Skin Sensitisation - Human Cell Line Activation Test (h-CLAT)

    The present Test Guideline addresses the human health hazard endpoint skin sensitisation, following exposure to a test chemical. Skin sensitisation refers to an allergic response following skin contact with the tested chemical, as defined by the United Nations Globally Harmonized System of Classification and Labelling of Chemicals (UN GHS). This Test Guideline (TG) provides an in vitro procedure (the human cell Line Activation Test h-CLAT method) used for supporting the discrimination between skin sensitisers and non-sensitisers in accordance with the UN GHS. The h-CLAT method is proposed to address the third key event of the skin sensitisation AOP by quantifying changes in the expression of cell surface markers associated with the process of activation of monocytes and dendritic cells (DC) (i.e. CD86 and CD54), in the human monocytic leukaemia cell line THP-1, following exposure to sensitising test chemical. These surface molecules are typical markers of monocytic THP-1 activation and may mimic DC activation, which plays a critical role in T-cell priming. The changes of surface marker expression are measured by flow cytometry following cell staining with fluorochrome-tagged antibodies. The relative fluorescence intensity of surface markers compared to solvent/vehicle control are calculated and used in the prediction model, to support the discrimination between sensitisers and non-sensitisers.

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