Registration Dossier
Registration Dossier
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EC number: 931-285-8 | CAS number: -
Short-term toxicity to aquatic invertebrates
Administrative data
- Endpoint:
- short-term toxicity to aquatic invertebrates
- Type of information:
- migrated information: read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Measured concentrations represent only 13-20% of components, remaining hydrocarbon components in WAF may be equally toxic and should have been quantitated to determine total measured concentrations.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 995
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: 1991 ASTM method E729-88a
- Principles of method if other than guideline:
- No specific guideline was described as being used to conduct the test, however report references 1991 ASTM method E729-88a and 1982 EPA Support Documents for Environmental Testing: EPA 560/6-82-002. Statistical Method: (FT - ME) EL50 and EC50 calculated using binomial probability analysis. ASTM Special Technical Publication 634. 1977, pp 65-84.
- GLP compliance:
- yes
Test material
- Reference substance name:
- light catalytically cracked naphtha (LCCN)
- IUPAC Name:
- light catalytically cracked naphtha (LCCN)
Constituent 1
Sampling and analysis
- Analytical monitoring:
- yes
Test solutions
- Vehicle:
- no
Test organisms
- Test organisms (species):
- Daphnia magna
Study design
- Test type:
- semi-static
- Water media type:
- freshwater
- Limit test:
- no
- Total exposure duration:
- 48 h
Results and discussion
Effect concentrations
- Duration:
- 48 h
- Dose descriptor:
- EL50
- Effect conc.:
- 18 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mobility
- Remarks on result:
- other: WAF loading rate
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Conclusions:
- The 48-hour EL50 of the test substance to Daphnia was calculated to be 18 mg/l.
- Executive summary:
The 48-hour EL50 of the test substance to Daphnia was calculated to be 18 mg/l.
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