Registration Dossier

Administrative data

Endpoint:
short-term toxicity to fish
Type of information:
other: publication
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)

Data source

Reference
Reference Type:
publication
Title:
Unnamed
Year:
2009

Materials and methods

Principles of method if other than guideline:
no data from the publication
GLP compliance:
not specified
Remarks:
no data from the publication

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
not specified
Details on test material:
no data available from the publication
Specific details on test material used for the study:
Details on properties of test surrogate or analogue material (migrated information):
not applicable

Sampling and analysis

Analytical monitoring:
not specified
Details on sampling:
no data available from the publication

Test solutions

Vehicle:
not specified
Details on test solutions:
no data available from the publication

Test organisms

Test organisms (species):
other: Catfish (Clarias Iazera)
Details on test organisms:
no data available from the publication

Study design

Test type:
not specified
Water media type:
not specified
Limit test:
no
Total exposure duration:
168 h
Post exposure observation period:
no data available from the publication

Test conditions

Hardness:
no data available from the publication
Test temperature:
no data available from the publication
pH:
no data available from the publication
Dissolved oxygen:
no data available from the publication
Salinity:
no data available from the publication
Nominal and measured concentrations:
no data available from the publication
Reference substance (positive control):
not specified

Results and discussion

Details on results:
no data available from the publication
Results with reference substance (positive control):
no data available from the publication
Reported statistics and error estimates:
no data available from the publication

Any other information on results incl. tables

no data available from the publication

Applicant's summary and conclusion

Validity criteria fulfilled:
not specified
Conclusions:
The addition of activated charcoal did not cause any adverse affect or lethality to fish up to the tested concentration of 100 mg/L even in the presence of cyanophos residues in the water.
Executive summary:

In (Romeh, Ashour et al. 2009)the effects of activated charcoal addition in water contaminated with cyanophos were investigated on Clarias Iazera fish. Four groups of animals were exposed to water with different additives as following: Group 1: 9.33 mg/L cyanophos; Group 2: 9.33 mg/L cyanophos + activated charcoal 100 mg/L; Group 3: 9.33 mg/L cyanophos + rice husk ash 100 mg/L; Group 4: Control group. The addition of activated charcoal to water contaminated with cyanophos reduced clearly the levels of residues in water and in fish gills, liver and muscles. In parallel, the addition of activated charcoal did not cause any adverse affect or lethality to fish up to the tested concentration of 100 mg/L even in the presence of cyanophos residues in the water.