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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Description of key information

The test gave a 72-h ErC50 value for effects on growth rate of 82 mg/l, a 72-h ErC10 of 42 mg/l and a NOEC of 13 mg/l. These results are below the reported water solubility value for TCPP of 1080 mg/l.

Key value for chemical safety assessment

EC50/LC50 for freshwater algae:
82 mg/L
EC10, LC10 or NOEC for freshwater algae:
42 mg/L

Additional information

The test with P. subcapitata fulfilled all the reliability criteria. The test gave a 72-h ErC50value for effects on growth rate of 82 mg/l, a 72-h ErC10of 42 mg/l and a NOEC of 13 mg/l. These results are below the reported water solubility value for TCPP of 1080 mg/l.

Estimated 96-hour EC50 and NOEC values of 1.8 and 1.4 mg/l have been derived for algae using an ECOSAR QSAR applicable to esters. The estimated values are lower than those obtained in the reported studies.