Residues (petroleum), light vacuum

Short-term toxicity to fish

Administrative data

Endpoint:

short-term toxicity to fish

Type of information:

migrated information: read-across based on grouping of substances (category approach)

Adequacy of study:

key study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: RELIABLE SUMMARY REPORT.

Cross-reference

Reason / purpose for cross-reference:

reference to same study

Data source

Reference

Reference Type:

review article or handbook

Title:

HEAVY FUEL OILS. ROBUST SUMMARY OF INFORMATION ON HEAVY FUEL OILS.

Author:

AMERICAN PETROLEUM INSTITUTE

Year:

2003

Bibliographic source:

HEAVY FUEL OILS. ROBUST SUMMARY OF INFORMATION ON HEAVY FUEL OILS. PG 21

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

OECD Guideline 203 (Fish, Acute Toxicity Test)

Deviations:

not specified

GLP compliance:

not specified

Test material

Test material information

Constituent 1

Reference substance name:

Fuel oil, residual

EC Number:

270-675-6

EC Name:

Fuel oil, residual

Cas Number:

68476-33-5

IUPAC Name:

68476-33-5

Sampling and analysis

Analytical monitoring:

yes

Test solutions

Vehicle:

not specified

Test organisms

Test organisms (species):

Oncorhynchus mykiss (previous name: Salmo gairdneri)

Study design

Test type:

semi-static

Water media type:

freshwater

Total exposure duration:

96 h

Results and discussion

Effect concentrations

Duration:

96 h

Dose descriptor:

LL0

Effect conc.:

>= 1 000 mg/L

Conc. based on:

not specified

Basis for effect:

mortality (fish)

Any other information on results incl. tables

Sublethal observations / clinical signs:

No fish exposed to WAF of light fuel oil died during the test. 96-hr LL0 = 1000 mg/l based on nominal loading rates. After 96 h, 1 of the 7 control fish died. All fish in the 100 mg/l treatment exhibited no toxic symptoms. All fish in the 1000 mg/l WAF showed abnormal swimming. Total peak area of the dissolved components of each batch of freshly prepared WAFs was similar. Peak area values ranged from 19-21 x 108 at loading rate of 1000 mg/l and 9-11 x 108 at 100 mg/l. Peak profile was different at different loading rates but peak profile for new and old media was similar. Mean reduction in total peak area was 27% during the test (range 5 - 47%). Peak profiles for the WAFs differed significantly from profile of light fuel oil in dichloromethane. Only two loading rates were tested which is less than a minimum of five concentrations stated in the guidelines. Water hardness was higher than targeted range of 50 - 250 mg/l as CaCO3. Hardness range of 286 - 292 mg/l as CaCO3 was normal for this laboratory and did not adversely affect the health of the fish.