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Ecotoxicological information

Short-term toxicity to fish

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Description of key information

Acutely very toxic for fish.

Key value for chemical safety assessment

LC50 for freshwater fish:
0.065 mg/L

Additional information

Two reliable studies on the toxicity of the test substance to fish are available. In a BASF study (1983) conducted with the isomer mix a 96 -h LC50 value of 1.26 mg/L based on nominal concentrations was determined. Linear tridecylamine tested according to APHA standard methods for the examination of water and waste water in a flow through system resulted in a LC50 of 0.065 mg/L (CLSES, 1990). The latter LC50 was determined based on measured test item concentrations which were in the range of 30 to 73% of the nominal values. Since the BASF study relies on nominal values, the toxicity of the test substance might be underestimated in this study and the flow-through study was chosen as the key study.