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Ecotoxicological information

Toxicity to aquatic plants other than algae

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Administrative data

Endpoint:
toxicity to aquatic plants other than algae
Type of information:
experimental study
Adequacy of study:
other information
Reliability:
3 (not reliable)
Rationale for reliability incl. deficiencies:
other: - This was a non standard toxicity test. - Iron concentration of test solutions was above the limiting solubility concentration for iron. - Total iron concentration reported. - No iron speciation was performed.

Data source

Reference
Reference Type:
publication
Title:
Accumulation and toxicity of iron and manganese in Spirodela polyrrhiza (L.) Schleiden
Author:
Sinha, S. Rai, U.N. & Chandra, P.
Year:
1994
Bibliographic source:
Bull. Environ. Contam. Toxicol. 1994, Vol. 53, p. 610-617.

Materials and methods

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
- Name of test material (as cited in study report): Iron (III) chloride

Sampling and analysis

Analytical monitoring:
yes

Test organisms

Test organisms (species):
other: Spirodela polyrrhiza (L.) Schleiden
Details on test organisms:
Unpolluted plants collected and cultured fronds were treated with five different solutions of varying Fe content in Hoagland's solution.

Study design

Total exposure duration:
14 d

Test conditions

pH:
7.5
Details on test conditions:
controls used

Results and discussion

Effect concentrationsopen allclose all
Duration:
14 d
Dose descriptor:
NOEC
Effect conc.:
< 0.56 mg/L
Nominal / measured:
meas. (not specified)
Conc. based on:
other: total Fe measured
Basis for effect:
other: growth
Duration:
14 d
Dose descriptor:
LOEC
Effect conc.:
>= 0.56 mg/L
Nominal / measured:
meas. (not specified)
Conc. based on:
other: total Fe measured
Basis for effect:
other: growth

Applicant's summary and conclusion

Conclusions:
- This was a non standard toxicity test.
- Iron concentration of test solutions was above the limiting solubility concentration for iron.
- Total iron concentration reported.
- No iron speciation was performed.