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OECD: Guidance On Selecting A Strategy For Assessing The Ecological Risk Of Organometallic And Organic Metal Salt Substances Based On Their Environmental Fate (2015)

Description:

The present document endeavours to fill this need for specific ecological assessment guidance regarding organometallic compounds (OM) and organic metal salts (OMS). A strategy is presented to facilitate the ecological risk assessment of OM and OMS, outlining key steps that are based on elucidation of the fate of these substances in the environment. Reference has been made in various other guidance documents regarding the importance of considering fate, however, this document puts forth the recommendation that the initial determination of their fate in the environment is a primary factor for deciding how these substances should be assessed. The reader should be aware that this document is not intended to provide full ecological assessment guidance for OM or OMS, and it is recognized that regulatory and program requirements will vary with each jurisdiction. In addition, the proposed strategy encompasses the ecological component of a risk assessment only.

Why this Tool/Guidance?

The step-by-step strategy presented in this document begins with the determination of the fate of OM and OMS in the environment, with subsequent identification of the moieties to consider for ecological risk assessment. These moieties may be the compound itself and/or any transformation products that may have been formed in the environment. This strategy may also be used to contribute to the effective prioritization of groups of chemicals for ecological risk assessment. Section 2 of the document provides relevant concepts, definitions related to OM and OMS, and an overview of the strategy. Section 3 provides the technical details to support the evaluation of environmental fate and ecotoxicity of OM, OMS and/or their transformation products in relation to the various steps outlined in the strategy. This process ultimately leads to the determination of the moieties that are most relevant for ecological risk assessment. Data selection and evaluation are also briefly considered in Section 4. Worked examples are provided in an appendix, representing the proposed outcomes of the step-by-step strategy.

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OECD Guidance On Selecting A Strategy For Assessing The Ecological Risk Of Organometallic And Organic Metal Salt Substances Based On Their Environmental Fate external link

 


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