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Short-term toxicity to fish

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Reference
Endpoint:
short-term toxicity to fish
Type of information:
experimental study
Adequacy of study:
key study
Study period:
18.01. – 13.02.2001
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment
Qualifier:
according to
Guideline:
other: Test No. L 47 "Fish, Acute Toxicity test. Chemical formulations and waste waters."
Deviations:
yes
Remarks:
see Any other information
Principles of method if other than guideline:
- Principle of test:
The test item is almost insoluble thus a sample of the test item at a concentration of 0.1 g/L was dispersed in the dilution water and partly dissolved by using ultrasonic device. The total volume for one dilution was 1000 ml for preliminary and limit test.
Organisms: 3 in preliminary and 10 in limit test

- Short description of test conditions:
The dilution water should have a pH of ca 7.8 and saturated with oxygen at a temperature 20 – 24°C.
Test duration 96 hours, the temperature of the solutions 21.0 ± 1.0 °C.

- Parameters analysed / observed:
mortality at 48 and 96 h

GLP compliance:
no
Specific details on test material used for the study:
Other name: Versalová červeň 2G
Analytical monitoring:
no
Details on test solutions:
PREPARATION AND APPLICATION OF TEST SOLUTION
- Method: The test item is almost insoluble thus a sample of the test item at a concentration of 0.1 g/L was dispersed in the dilution water and partly dissolved by using ultrasonic device.
- Controls: dilution water
- Concentrations: 100, 75, 50, 25, 0 mg/L
- Evidence of undissolved material: yes
Test organisms (species):
Poecilia reticulata
Details on test organisms:
TEST ORGANISM
- Common name: Guppy
- Strain: Poecilia reticulata
- Source: AKVA-SALON, Žižkova 977, 535 01 Přelouč
- Age at study initiation (mean and range, SD): 3 - 4 monts
- Length at study initiation (length definition, mean, range and SD): 2 - 3 cm

ACCLIMATION
- Acclimation period: yes
- Acclimation conditions (same as test or not): same as test

FEEDING DURING TEST
no feeding during test
fasted 72 hours before test
Test type:
static
Water media type:
freshwater
Limit test:
yes
Total exposure duration:
96 h
Test temperature:
21.0 ± 1.0 °C
pH:
7.77 - 7.99 (for measured values see attached document with tables)
Dissolved oxygen:
8.00 - 8.5 mg/L O2 (see attached document with tables)
Nominal and measured concentrations:
100.8 mg.L-1
Details on test conditions:
TEST SYSTEM
- Material, size, headspace, fill volume: open 10 L glass aquarium
- Aeration: without
- No. of organisms per vessel:
Preliminary test: 3 animals
Full test: 10 animals
- No. of vessels per concentration/control (replicates): no replicates

TEST MEDIUM / WATER PARAMETERS
Dilution water: standard dilution water was prepared by mixing 2.5 ml of stock solutions (A,B,C,D) with 1000 ml distilled water
A) 117.6 g CaCl3.2H2O in 1L of distilled water
B) 49.3 g MgSO4.7H2O in 1L of distilled water
C) 25.9 g NaHCO3 in 1L of distilled water
D) 2.3 g KCl in 1L of distilled water
The dilution water should have a pH of ca 7.8 and is saturated with oxygen at a temperature 20 – 24°C.


EFFECT PARAMETERS MEASURED (with observation intervals if applicable) : mortality at 48, 96 h

TEST CONCENTRATIONS
- Range finding study: 100, 75, 50, 25 mg.L-1
- Test concentrations: 100.8 mg.L-1
Reference substance (positive control):
yes
Remarks:
potassium dichromate
Duration:
48 h
Dose descriptor:
LC50
Effect conc.:
> 100 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mortality
Key result
Duration:
96 h
Dose descriptor:
LC50
Effect conc.:
> 100 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mortality
Results with reference substance (positive control):
The sensitivity of the test organisms and the correctness of the test were verified by testing a standard substance (potassium dichromate p.a.).
Validity criteria fulfilled:
yes
Remarks:
The measured values of pH solution not change more than 1 pH unit.
Conclusions:
48 h - LC50 > 100.0 mg.L-1
96 h - LC50 > 100.0 mg.L-1
Executive summary:

The test item, Versalová červeň 2G (Pigment Red 4), was tested for acute toxicity on fish Poecilia reticulata. The test was performed according to method No. L 47 "Fish, Acute Toxicity test. Chemical formulations and waste waters".

Results:

48 h - LC50 > 100.0 mg.L-1

96 h - LC50 > 100.0 mg.L-1

Description of key information

The test substance was tested for acute toxicity on fish Poecilia reticulata. The test was performed according to method No. L 47 "Fish, Acute Toxicity test. Chemical formulations and waste waters".

Results:

48 h - LC50 > 100.0 mg.L-1

96 h - LC50 > 100.0 mg.L-1

Key value for chemical safety assessment

LC50 for freshwater fish:
100 mg/L

Additional information