Registration Dossier
Registration Dossier
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EC number: - | CAS number: -
Endpoint summary
Administrative data
Description of key information
Short term toxicity tests are available for structural analogue FAT 41039/A for all the three tropic levels (fish, invertebrates and algae). All the studies reported EC/LC 50 > 100 mg/L.
Additional information
Currently no studies evaluating aquatic toxicity of FAT 41048 are available.
Short term toxicity tests on structural analogue FAT 41048 are available for all the three tropic levels (fish, invertebrates and algae).
The acute toxicity of the test item FAT 41039/A to Zebra fish, Daphnia magna and green algal species Scenedesmus subspicatus was determined following the below listed guidelines respectively:
96-hour semi-static test with a daily test medium renewal according to the EU Commission Directive 92/69/EEC, Part C.1 (1992) and the OECD Guideline for Testing of Chemicals No. 203(1992)
48- hour static test according to the EU Commission Directive 92/69/EEC, Part C.2 (1992) and the OECD Guideline for Testing of Chemcials No. 202 (2004)
72-hour static test according to the EU Commission Directive 92/69/EEC, C.3 (1992) and the OECD Guideline No. 201 (1984)
In order to assess the toxicity of the test item FAT 41039/A containing different components to Zebra fish, Daphnia magna and green algal a water accommodated fraction (WAF) was prepared. The method is based on the Guidance Document on Aquatic Toxicity Testing of Difficult Substances and Mixtures (2000). In all the species the test item FAT 41039/A had no toxic effect up to the loading rate of 100 mg/L. Hence it was concluded as 96 hour LC50 and NOCE for fish and the 48 hour EC50 and NOEC for daphnids and 72 hour EC50 and NOEC for green algae values were determined to be greater than 100 mg/L, respectively.
The inhibitory effect of the test item FAT 41039/A on the respiration rate of aerobic wastewater microorganisms of activated sludge was investigated in a 3-hour respiration inhibition test according to the EU Commission Directive 88/302/EEC, Part C.11, and the OECD Guideline for Testing of Chemicals, No. 209. In accordance with EU Commission Directive 92/69/EEC (C.1, C.2, and C.3) and OECD Guidance Document on Aquatic Toxicity Testing of Difficult Substances and Mixtures, a limit test was performed testing one nominal concentration of FAT 41039/A of 1000 mg/L to demonstrate that the test item has no toxic effect on activated sludge microorganisms up to and including this test concentration.
The 3-hour NOEC (EC15) of the test item to activated sludge microorganisms was at least 1000 mg/L. This value might even be higher but concentrations above 1000 mg/L were not tested. The 3-hour EC20, EC50, and EC80 could not be calculated but were clearly higher than 1000 mg/L.
Hence, based on the above results, FAT 41048 can be considered as not toxic to the aquatic ecosystem.
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