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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Description of key information

EC50(48h) > 980 mg/L for Daphnia magna (OECD 202)

Key value for chemical safety assessment

EC50/LC50 for freshwater invertebrates:
980 mg/L

Additional information

There is one short-term aquatic invertebrate study available for 2-amino-2-(hydroxymethyl)-1,3-propanediol (TRIS AMINO), which was used as key study for the assessment. The study was conducted according the OECD guideline 202 and GLP (Urann, 2011). The test organism Daphnia magna was exposed to TRIS AMINO in a static system for 48 hours, at the measured test concentrations 63, 130, 260, 520, 980 mg a.i./L. Except for a 15% immobilisation at the highest test concentration, no effects were observed. The EC50 value was thus estimated to be > 980 mg/L.