α,α,2,6-tetrachlorotoluene

Short-term toxicity to fish

Administrative data

Endpoint:

short-term toxicity to fish

Type of information:

experimental study

Adequacy of study:

other information

Reliability:

2 (reliable with restrictions)

Data source

Reference

Reference Type:

publication

Title:

Structure-Toxicity Relationships for the Fathead Minnow, Pimephales promelas: Narcotic Industrial Chemicals

Author:

Gilman D. Veith and Daniel J. Call and L. T. Brooke

Year:

1983

Bibliographic source:

Can. J. Fish Aquat. Sci., 40, 1983, 743-748

Materials and methods

Test guideline

Qualifier:

equivalent or similar to guideline

Guideline:

EU Method C.1 (Acute Toxicity for Fish)

Test material

Test material information

Constituent 1

Reference substance name:

α,α,2,6-tetrachlorotoluene

EC Number:

201-332-0

EC Name:

α,α,2,6-tetrachlorotoluene

Cas Number:

81-19-6

Molecular formula:

C7H4Cl4

IUPAC Name:

1,3-dichloro-2-(dichloromethyl)benzene

Sampling and analysis

Details on sampling:

The concentration of the test material was measured daily.

Test organisms

Test organisms (species):

Pimephales promelas

Details on test organisms:

Source: Environmental Research Laboratory Duluth.
Age at study initiation: 30 days
Weight, mean: 0.12 g
Feeding during test: no feeding during test

Study design

Test type:

flow-through

Total exposure duration:

96 h

Remarks on exposure duration:

Deaths were recorded aftre 1, 3, 6, 12, 24, 48, 96 hours.

Test conditions

Hardness:

Hardness, mean: 45.5 mg/L CaCO3

Test temperature:

25 +/- 1 °C

pH:

Arithmetic mean: 7.5

Dissolved oxygen:

> 60%

Results and discussion

Effect concentrations

Duration:

96 h

Dose descriptor:

LC50

Effect conc.:

0.97 mg/L

Applicant's summary and conclusion

Conclusions:

From this study, LC50 for 2,6-dichlorobenzal chloride was determined to be 0.97 mg/L.