By Date


  • 27-June-2018

    English

    Test No. 491: Short Time Exposure In Vitro Test Method for Identifying i) Chemicals Inducing Serious Eye Damage and ii) Chemicals Not Requiring Classification for Eye Irritation or Serious Eye Damage

    This Test Guideline describes a cytotoxicity-based in vitro assay that is performed on a confluent monolayer of Statens Seruminstitut Rabbit Cornea (SIRC) cells, cultured on a 96-well polycarbonate microplate. After five-minute exposure to a test chemical, the cytotoxicity is quantitatively measured as the relative viability of SIRC cells using the MTT assay. Decreased cell viability is used to predict potential adverse effects leading to ocular damage. Cell viability is assessed by the quantitative measurement, after extraction from the cells, of blue formazan salt produced by the living cells by enzymatic conversion of the vital dye MTT, also known as Thiazolyl Blue Tetrazolium Bromide. The obtained cell viability is compared to the solvent control (relative viability) and used to estimate the potential eye hazard of the test chemical. A test chemical is classified as UN GHS Category 1 when both the 5% and 0.05% concentrations result in a cell viability smaller than or equal to (≤) 70%. Conversely, a chemical is predicted as UN GHS No Category when both 5% and 0.05% concentrations result in a cell viability higher than (>) 70%.
  • 27-June-2018

    English

    Test No. 442E: In Vitro Skin Sensitisation - In Vitro Skin Sensitisation assays addressing the Key Event on activation of dendritic cells on the Adverse Outcome Pathway for Skin Sensitisation

    The present Key Event based Test Guideline (TG) addresses the human health hazard endpoint skin sensitisation, following exposure to a test chemical. More specifically, it addresses the activation of dendritic cells, which is one Key Event on the Adverse Outcome Pathway (AOP) for Skin Sensitisation. 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 TG provides three in vitro test methods addressing the same Key Event on the AOP: (i) the human cell Line Activation Test or h-CLAT method, (ii) the U937 Cell Line Activation Test or U-SENS and (iii) the Interleukin-8 Reporter Gene Assay or IL-8 Luc assay. All of them are used for supporting the discrimination between skin sensitisers and non-sensitisers in accordance with the UN GHS. Test methods described in this TG either quantify the change in the expression of cell surface marker(s) associated with the process of activation of monocytes and DC following exposure to sensitisers (e.g. CD54, CD86) or the changes in IL-8 expression, a cytokine associated with the activation of DC. In the h-CLAT and U-SENS assays, the changes of surface marker expression are measured by flow cytometry following cell staining with fluorochrome-tagged antibodies. In the IL-8 Luc assay, the changes in IL-8 expression are measured indirectly via the activity of a luciferase gene under the control of the IL-8 promoter. The relative fluorescence or luminescence intensity of the treated cells compared to solvent/vehicle control are calculated and used in the prediction model, to support the discrimination between sensitisers and non-sensitisers.
  • 26-June-2018

    English

    Managing Weather-Related Disasters in Southeast Asian Agriculture

    Southeast Asia’s exposure to increasingly frequent and intense weather-related disasters is a growing concern for agricultural producers of the region. This study reviews policy approaches to droughts, floods and typhoons in Myanmar, the Philippines, Thailand and Viet Nam in an effort to identify good practices and strengthen the resilience of the agricultural sector. The study assesses the risk exposure of this sector to weather-related disasters and reviews risk management policies using an OECD policy framework on the mitigation of droughts and floods in agriculture as a benchmark.The analysis reveals several priority areas  to strengthen the resilience of the agricultural sectors in these four Association of Southeast Asian Nations (ASEAN) countries, including: 1) improving the prevention and mitigation components of disaster risk management by aligning policy incentives and by integrating risk-reduction measures into infrastructure planning and extension systems; 2) implementing and enforcing water allocation and water use restriction instruments to steer farmers towards more efficient water use; 3)  enhancing the co-ordination of government and partner institutions' activities to enable a more timely response to disasters; and 4) improving the timely distribution of inputs, equipment and social protection measures like disaster-linked cash transfers to strengthen the capacity of farmers to recover from disasters.
  • 26-June-2018

    English

    Reshaping Decentralised Development Co-operation - The Key Role of Cities and Regions for the 2030 Agenda

    Over the last decades, and in line with the adoption of the Sustainable Development Goals (SDGs) in 2015, cities and regions have played an important part in helping to implement global agendas at local level through their Decentralised Development Cooperation (DDC) activities. This report analyses the evolution of financial flows, emerging trends and innovative paradigms related to the development co-operation of local and regional governments, including but not limited to official development assistance extended by sub-national governments. It promotes a territorial approach to development co-operation and provides policy recommendations to maximise the effectiveness, benefits and outcomes of DDC at all levels, while acknowledging the diversity of approaches, definitions and concepts across OECD DAC countries active in DDC.
  • 25-June-2018

    English

    Global Forum on Environment

    SAVE THE DATE: 29-31 May 2018 - Global Forum on Plastics in a Circular Economy. The Forum is a venue that brings together international experts from member and non member economies to share experiences and explore common policy issues focusing principally on the environmental dimension of sustainable development and its linkages with economic and social policies.

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  • 25-June-2018

    English

    Cost-Benefit Analysis and the Environment - Further Developments and Policy Use

    This book explores recent developments in environmental cost-benefit analysis (CBA). This is defined as the application of CBA to projects or policies that have the deliberate aim of environmental improvement or are actions that affect, in some way, the natural environment as an indirect consequence. It builds on the previous OECD book by David Pearce et al. (2006), which took as its starting point that a number of developments in CBA, taken together, altered the way in which many economists would argue CBA should be carried out and that this was particularly so in the context of policies and projects with significant environmental impacts.
    It is a primary objective of the current book not only to assess more recent advances in CBA theory but also to identify how specific developments illustrate key thematic narratives with implications for practical use of environmental CBA in policy formulation and appraisal of investment projects.
    Perhaps the most significant development is the contribution of climate economics in its response to the challenge of appraising policy actions to mitigate (or adapt to) climate change. Work in this area has increased the focus on how to value costs and benefits that occur far into the future, particularly by showing how conventional procedures for establishing the social discount rate become highly problematic in this intergenerational context and what new approaches might be needed. The contribution of climate economics has also entailed thinking further about uncertainty in CBA, especially where uncertain outcomes might be associated with large (and adverse) impacts.
  • 23-June-2018

    English

    Safety Assessment of Transgenic Organisms in the Environment, Volume 8 - OECD Consensus Document of the Biology of Mosquito Aedes aegypti

    Volume 8 of the Series contains the first biosafety ‘consensus document’ to deal with the biology of an insect, the mosquito Aedes aegypti. Issued by the OECD Working Group on the Harmonisation of Regulatory Oversight in Biotechnology, the science-based consensus documents collate information for use during the regulatory risk assessment of biotechnology products, i.e. transgenic organisms (plants, animals, micro-organisms) when intended for release in the environment. Ae. aegypti mosquito is vectoring yellow fever, dengue, Zika and Chikungunya diseases in tropical and sub-tropical regions worldwide. Biotechnological applications are developed to control the mosquito population and reduce virus transmission. The book provides information on Ae. aegypti taxonomy, morphology, life cycle, reproductive biology, genetics, ecology, interactions with other species and the environment. The mosquito effects on human and animal health, and the control strategies/specific programmes to limit its development are also summarised.
  • 18-June-2018

    English

    Private climate finance: Research Collaborative

    The Research Collaborative serves as a platform for researchers, finance providers and governments to share information about and discuss progress towards improved tracking of private finance for climate action, including publicly-mobilised private finance. It conducts and co-ordinates work to explore data sources and methodologies.

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  • 15-June-2018

    English

    Climate Change Expert Group (CCXG)

    The CCXG is a group of government delegates and experts from OECD and other industrialised countries. Its aim is to promote dialogue on and enhance understanding of technical issues in the international climate change negotiations.

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  • 14-June-2018

    English

    Rethinking Urban Sprawl - Moving Towards Sustainable Cities

    This report provides a new perspective to the nature of urban sprawl and its causes and environmental, social and economic consequences. This perspective, which is based on the multi-dimensionality of urban sprawl, sets the foundations for the construction of new indicators to measure the various facets of urban sprawl. The report uses new datasets to compute these indicators for more than 1100 urban areas in 29 OECD countries over the period 1990-2014. It then relies on cross-city, country-level and cross-country analyses of these indicators to provide insights into the current situation and evolution of urban sprawl in OECD cities. In addition, the report offers a critical assessment of the causes and consequences of urban sprawl and discusses policy options to steer urban development to more environmentally sustainable forms.
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