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Long-term toxicity to fish

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Description of key information

Long-term toxicity testing with fish is scientifically not justified.

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Additional information

For silicon orthophosphate no chronic aquatic toxicity data are available and consequently, no experimental NOEC value can be derived. However,due to the known inherent physico-chemical properties, absence of acute toxic effects for three trophic levels as well as the ubiquitous presence of silica/silicates and phosphates in the environment, there is no evidence of harmful long-term effects arising from exposure to synthetic silicon orthophosphate. Therefore, and with respect to animal welfare, long-term testing with fish is scientifically not justified in accordance with Regulation (EC) 1907/2006, Column 2 of Annex IX, section 9.1.