Registration Dossier
Registration Dossier
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EC number: 201-757-1 | CAS number: 87-61-6
Toxicity to aquatic algae and cyanobacteria
Administrative data
- Endpoint:
- toxicity to aquatic algae and cyanobacteria
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Study period:
- 1997
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study without detailed documentation
Data source
Reference
- Reference Type:
- review article or handbook
- Title:
- Unnamed
- Year:
- 1 995
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 201 (Alga, Growth Inhibition Test)
- Deviations:
- not specified
- GLP compliance:
- yes
Test material
- Reference substance name:
- 1,2,3-trichlorobenzene
- EC Number:
- 201-757-1
- EC Name:
- 1,2,3-trichlorobenzene
- Cas Number:
- 87-61-6
- Molecular formula:
- C6H3Cl3
- IUPAC Name:
- 1,2,3-trichlorobenzene
Constituent 1
Sampling and analysis
- Analytical monitoring:
- not specified
Test solutions
- Vehicle:
- not specified
Test organisms
- Test organisms (species):
- Raphidocelis subcapitata (previous names: Pseudokirchneriella subcapitata, Selenastrum capricornutum)
Study design
- Test type:
- not specified
- Water media type:
- freshwater
- Total exposure duration:
- 72 h
Results and discussion
Effect concentrationsopen allclose all
- Duration:
- 72 h
- Dose descriptor:
- EC50
- Effect conc.:
- 1.6 mg/L
- Nominal / measured:
- not specified
- Conc. based on:
- not specified
- Basis for effect:
- growth rate
- Duration:
- 72 h
- Dose descriptor:
- NOEC
- Effect conc.:
- 0.23 mg/L
- Nominal / measured:
- not specified
- Conc. based on:
- not specified
- Basis for effect:
- growth rate
- Duration:
- 72 h
- Dose descriptor:
- EC50
- Effect conc.:
- 1.1 mg/L
- Nominal / measured:
- not specified
- Conc. based on:
- not specified
- Basis for effect:
- biomass
- Duration:
- 72 h
- Dose descriptor:
- NOEC
- Effect conc.:
- 0.28 mg/L
- Nominal / measured:
- not specified
- Conc. based on:
- not specified
- Basis for effect:
- biomass
Applicant's summary and conclusion
- Executive summary:
NITE 2009:
The acute toxicity of 1,2,3-Trichlorobenzene to Selenastrum capriconutum was tested. The test was conducted according to OECD TG 201. The found EC50 (growth rate) after 72 hours was 1.6 mg/L.
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