Registration Dossier

Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

Administrative data

Endpoint:
toxicity to aquatic algae and cyanobacteria
Type of information:
calculation (if not (Q)SAR)
Remarks:
Migrated phrase: estimated by calculation
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)

Data source

Reference
Reference Type:
other: Prediction model
Title:
Toxicity to aquatic algae by ECOSAR Version 1.10
Author:
ECOSAR Version 1.10
Year:
2012
Bibliographic source:
ECOSAR v1.1 Class-specific Estimations, Environmental Protection Agency (EPA) office of Chemical Safety and Pollution Prevention

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
other: Modeling database
Principles of method if other than guideline:
ECOSAR v1.1
GLP compliance:
no

Test material

Reference
Name:
Unnamed
Type:
Constituent
Type:
Constituent
Details on test material:
- Name of test material: 2-aminobenzene-1, 4-disulphonic acid
- Molecular formula: C6H7NO6S2
- Molecular weight: 253.25
- Substance type: Organic

Sampling and analysis

Analytical monitoring:
not specified

Test solutions

Vehicle:
not specified

Test organisms

Test organisms (species):
other: green algae

Study design

Test type:
not specified
Water media type:
not specified
Total exposure duration:
96 h

Results and discussion

Effect concentrations
Duration:
96 h
Dose descriptor:
EC50
Effect conc.:
356.637 mg/L
Nominal / measured:
estimated
Conc. based on:
test mat.
Basis for effect:
growth rate

Applicant's summary and conclusion

Conclusions:
Toxicity (96 h) value of 2-aminobenzene-1, 4-disulphonic acid to green algae is estimated to be EC50: 356.637 mg/L.
Executive summary:

Toxicity (96 h) value of 2-aminobenzene-1, 4-disulphonic acid to green algae is estimated to be EC50: 356.637 mg/L. This value indicates that 2-aminobenzene-1, 4-disulphonic acid is not toxic to green algae.