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Environmental fate & pathways

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In accordance with Annex IX, 9.3.2, column 2, a study on bioaccumulation in aquatic species does not need to be conducted if direct or indirect exposure to aquatic compartment is unlikely. Substance "reaction mass of calcium hydrogen phosphonate and dialuminium tricalcium hexaoxide" is used at industrial sites only. According to the physicochemical properties and the use pattern of the substance, release to the aquatic environment during production and processing is negligible. Further on, proper waste and wastewater management at the industrial sites can be taken for granted. Widespread release to the environment during service life is unlikely. At intended use, the substance is embedded in polymer matrices from which there is no release of substance "reaction mass of calcium hydrogen phosphonate and dialuminium tricalcium hexaoxide". Thus, no relevant exposure to the environment is expected. Furthermore, based on the physicochemical properties, substance "reaction mass of calcium hydrogen phosphonate and dialuminium tricalcium hexaoxide" can be expected not to have a relevant potential for bioaccumulation at all. Data on partition coefficient n-octanol/water are not available as the substance is inorganic. However, measurement of solubility in standard fat HB 307 indicates on missing affinity to organic material.