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Ecotoxicological information

Long-term toxicity to aquatic invertebrates

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Administrative data

Endpoint:
long-term toxicity to aquatic invertebrates
Type of information:
experimental study
Adequacy of study:
other information
Reliability:
3 (not reliable)
Rationale for reliability incl. deficiencies:
other: see 'Remark'
Remarks:
Test compound is not reported - little information on test organism: stage, age, sex at start of test is not reported (field collected organisms) - test medium is not reported (hardness, type medium?), only info given is pH of 4.5 which is not environmentally relevant -endpoint LC50 not typically chronic (no raw data to derive EC10), result is an extrapolation of the test concentration (LC50 is 73.07 mg/L and highest test concentration is 45 mg/L)

Data source

Reference
Reference Type:
publication
Title:
Joint and single toxicity of Cd and Fe related to metal uptake in the mayfly Leptophlebia marginata (L.) (Insecta)
Author:
Gerhardt A
Year:
1995

Materials and methods

Test material

Constituent 1
Reference substance name:
Automatically generated during migration to IUCLID 6, no data available
IUPAC Name:
Automatically generated during migration to IUCLID 6, no data available
Details on test material:
iron salt not reported

Test organisms

Test organisms (species):
other: Leptophlebia marginata
Details on test organisms:
Feral organisms acclimated to lab conditions for 72 h

Study design

Test type:
not specified
Water media type:
not specified
Total exposure duration:
42 d

Test conditions

pH:
4.32-4.57
Nominal and measured concentrations:
total Fe measured, test concentrations not listed
Details on test conditions:
duplicates utilized

Results and discussion

Effect concentrationsopen allclose all
Duration:
5 d
Dose descriptor:
EC50
Effect conc.:
8.48 mg/L
Nominal / measured:
meas. (not specified)
Conc. based on:
other: total Fe measured
Basis for effect:
other: food consumption
Duration:
5 d
Dose descriptor:
EC50
Effect conc.:
19.84 mg/L
Nominal / measured:
meas. (not specified)
Conc. based on:
other: total Fe measured
Basis for effect:
other: escape behaviour
Duration:
24 d
Dose descriptor:
EC50
Effect conc.:
23.48 mg/L
Nominal / measured:
meas. (not specified)
Conc. based on:
other: total Fe measured
Basis for effect:
other: escape behaviour
Duration:
24 d
Dose descriptor:
EC50
Effect conc.:
50.12 mg/L
Nominal / measured:
meas. (not specified)
Conc. based on:
other: total Fe measured
Basis for effect:
other: food consumption
Duration:
24 d
Dose descriptor:
EC50
Effect conc.:
73.07 mg/L
Nominal / measured:
meas. (not specified)
Conc. based on:
other: total Fe measured
Basis for effect:
other: survival

Applicant's summary and conclusion

Conclusions:
- Test compound is not reported
- little information on test organism: stage, age, sex at start of test is not reported (field collected organisms)
- test medium is not reported (hardness, type medium?), only info given is pH of 4.5 which is not environmentally relevant
-endpoint LC50 not typically chronic (no raw data to derive EC10), result is an extrapolation of the test concentration (LC50 is 73.07 mg/L and highest test concentration is 45 mg/L)

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