Registration Dossier
Registration Dossier
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EC number: 234-293-3 | CAS number: 11071-15-1
Toxicity to aquatic algae and cyanobacteria
Administrative data
- Endpoint:
- toxicity to aquatic algae and cyanobacteria
- Type of information:
- read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
Data source
Reference
- Reference Type:
- publication
- Title:
- Ambient water quality criteria for antimony
- Author:
- EPA Working Group
- Year:
- 1 980
- Bibliographic source:
- Environmental Protection Agency Vol: EPA-440/5-80-020
Materials and methods
Test guideline
- Guideline:
- other: Developed by EPA (not specified)
- GLP compliance:
- not specified
Test material
- Reference substance name:
- Diantimony trioxide
- EC Number:
- 215-175-0
- EC Name:
- Diantimony trioxide
- Cas Number:
- 1309-64-4
- Molecular formula:
- O3Sb2
Constituent 1
Sampling and analysis
- Analytical monitoring:
- not specified
Test solutions
- Vehicle:
- no
Test organisms
- Test organisms (species):
- other: Selenastrum capricornutum
Study design
- Water media type:
- freshwater
Results and discussion
Effect concentrationsopen allclose all
- Key result
- Duration:
- 96 h
- Dose descriptor:
- EC50
- Effect conc.:
- ca. 610 µg/L
- Conc. based on:
- element
- Remarks:
- antimony
- Basis for effect:
- other: chlorophylla inhibition
- Duration:
- 96 h
- Dose descriptor:
- EC50
- Effect conc.:
- ca. 630 µg/L
- Conc. based on:
- element
- Remarks:
- anitmony
- Basis for effect:
- other: reduction in cell numbers
- Details on results:
- No inhibition of chlorophylla or reduction in cell numbers of the alga, Skeletonema costatum, were observed at concentrations ,as high as 4,2 mg/L
Applicant's summary and conclusion
- Conclusions:
- EC50(96h) = 0.61 mg/L
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