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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Administrative data

Endpoint:
toxicity to aquatic algae and cyanobacteria
Type of information:
experimental study
Adequacy of study:
other information
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: Comparable to guideline study but it has not been possible to obtain the original study for evaluation.

Data source

Reference
Reference Type:
grey literature
Title:
Studies on ecotoxity of Sulfuric acid, iron (2+) salt (1:1), heptahydrate for aquatic organisms, fish, daphnids and algae. Unpublished data.
Author:
MOE, Japan
Year:
2002
Bibliographic source:
Unpublished data

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
OECD Guideline 201 (Alga, Growth Inhibition Test)
GLP compliance:
not specified

Test material

Reference
Name:
Unnamed
Type:
Constituent

Sampling and analysis

Analytical monitoring:
not specified

Test solutions

Vehicle:
not specified

Test organisms

Test organisms (species):
Pseudokirchneriella subcapitata (previous names: Raphidocelis subcapitata, Selenastrum capricornutum)

Study design

Test type:
not specified
Water media type:
not specified
Limit test:
no
Total exposure duration:
72 h

Test conditions

pH:
4.4-10.5

Results and discussion

Effect concentrations
Duration:
72 h
Dose descriptor:
EC50
Effect conc.:
18 mg/L
Nominal / measured:
meas. (not specified)
Conc. based on:
element
Basis for effect:
growth rate

Applicant's summary and conclusion

Conclusions:
This study is comparable to a guideline study however, the original reference has not been obtained.