Registration Dossier
Registration Dossier
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EC number: 941-899-8 | CAS number: -
Endpoint summary
Administrative data
Description of key information
The target substance is considered to have low toxicity to aquatic organisms.
Additional information
Short-term toxicity tests on fish, Daphnia, Lemna and microorganisms are available with the target substance.
48 h LC50 for FAT 40065/A is found to be 450 mg/l in trout fish.
The acute toxicity of FAT 92348/A to Daphnia magna was determined in a 48-hour static test according to the OECD Guideline and GLP. The nominal concentrations tested were 58, 100 and 180 mg test article/L, and a control without any additions. In the control and in the test concentrations up to 100 mg/l no immobilization of the daphnids was observed after 48 hours. The EC0 value is 100.0 mg/l. The EC50 and EC100 values are clearly higher than 179.4 mg/l. Therefore, the EC50 could not be calculated.
The influence of FAT 92348/B TE on the growth of the freshwater plant Lemna gibba was assessed in a static dose-response test. The 7-day EyC50 was calculated to be 9.97 and 31.0 mg test item/L for frond number and dry weight, respectively. The 7-day ErC50 was calculated to be >50 mg test item/L for frond number and dry weight. The 7-day NOEyC and the LOEyC were determined to be 0.15 and 0.48 mg test item/L for frond number and 0.48 and 1.5 mg test item/L for dry weight, respectively. The 7-day NOErC and the LOErC were determined to be 0.15 and 0.48 mg test item/L for frond number and dry weight, respectively.
The toxicity of FAT - 92'348/A to activated sludge was detemiined in a 3-hours respiration inhibition test according to the GECO Guideline No. 209, and to the EG Method Nr.L 133/118.
The test substance concentrations tested were 320,100, 32 and 10 mg/l. The reference substance 3,5-Dichlorophenol was tested in concentrations of 32,10 and 3.2 mg/l. Based on the findings of the study, IC50 (3 h) of the test substance FAT - 92'348/A was determined to be > 320.0 mg/l, while IC50 (3 h) of the reference substance 3,5-Dichlorophenol was determined to be 9.5 mg/l.
Based on the available data, the target substance is considered to have low toxicity to aquatic organisms.
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