Registration Dossier

Ecotoxicological information

Toxicity to microorganisms

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

The testing of, 1,4-diethylbenzene with OECD 209, taking into account the characteristics of the substance (poorly soluble and volatile), and where the Water Accommodated Fraction (WAF) has been used, leads to a result of EL50 of >250 mg (Effective Loading). 

Key value for chemical safety assessment

EC50 for microorganisms:
250 mg/L

Additional information

The inhibition ranged from 4.8% to -9.3%. Due to the characteristics of the substance (poorly soluble and volatile), the testing using the Water Accommodated Fraction (WAF) leads to a result of EL50 of >250 mg (Effective Loading). At lower concentrations on the range of solubility (10 mg/L and 25 mg/L) no toxic effects have been observed.

The value of Effective Loading will be used for the derivation of PNEC.