2-methylcyclohexanone

Short-term toxicity to aquatic invertebrates

Link to relevant study record(s)

Reference

Endpoint:

short-term toxicity to aquatic invertebrates

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

test procedure in accordance with generally accepted scientific standards and described in sufficient detail

Qualifier:

no guideline available

Principles of method if other than guideline:

A largely standardized, water -toxicological procedure for testing the effect of potential
pollutants on the ability of Daphnia magna Straus to swim is reported with regard to methodology, application, evaluation and results. The standardized test strain IRCHA served as the test organism. The stock cultures were fed with standardized dry algae, and the pollutants
were tested in a chemically and physically defined, standardized culture medium ("artificial fresh water"). In evaluating the test results, the EC 50 values of the tested pollutants were determined using standardized mathematical methods.

GLP compliance:

no

Test organisms (species):

Daphnia magna

Test type:

static

Water media type:

freshwater

Total exposure duration:

24 h

Key result

Duration:

24 h

Dose descriptor:

EC50

Effect conc.:

377 mg/L

Nominal / measured:

nominal

Conc. based on:

test mat.

Conclusions:

EC50=377 mg/L

Description of key information

Results of the testing for the harmful effect of water-polluting substances against Daphnia magna - EC50=377 mg/L

Key value for chemical safety assessment

Fresh water invertebrates

Fresh water invertebrates

Dose descriptor:

EC50

Effect concentration:

377 mg/L