Reaction mass of disodium sulphide and sodium hydrogensulphide

Short-term toxicity to fish

Administrative data

Endpoint:

short-term toxicity to fish

Type of information:

migrated information: read-across from supporting substance (structural analogue or surrogate)

Adequacy of study:

supporting study

Reliability:

3 (not reliable)

Rationale for reliability incl. deficiencies:

other: see 'Remark'

Remarks:

Exposure concentrations cannot be hydrogen sulfide concentrations (maybe total sulfide?) and were not measured. No concentration response relationship was presented. Only survival times (minimal-maximal) were reported. Materials and methods section not satisfactorily described.

Data source

Reference

Reference Type:

publication

Title:

Detection and measurement of stream pollution.

Author:

Ellis MM

Year:

1937

Bibliographic source:

Bulletin of US Bureau of Fisheries 48: 365-437

Materials and methods

Test guideline

Qualifier:

no guideline followed

Principles of method if other than guideline:

In this study goldfish were exposed to a series of increasing sulfide concentrations and at each exposure concentration survival time of the fish was monitored.

GLP compliance:

not specified

Test material

Test material information

Constituent 1

Reference substance name:

Hydrogen sulphide

EC Number:

231-977-3

EC Name:

Hydrogen sulphide

Cas Number:

7783-06-4

Constituent 2

Reference substance name:

hydrogen sulfide

IUPAC Name:

hydrogen sulfide

Details on test material:

- Name of test material (as cited in study report): H2S

Test organisms

Test organisms (species):

Carassius auratus

Study design

Test type:

flow-through

Water media type:

freshwater

Limit test:

no

Total exposure duration:

96 h

Remarks on exposure duration:

maximum test duration = 96 h

Results and discussion

Effect concentrations

Effect concentrations 1

Dose descriptor:

other: LT100

Effect conc.:

> 96 other: h

Basis for effect:

mortality (fish)

Remarks on result:

other: at 1 mg/L

Effect concentrations 2

Dose descriptor:

other: LT100

Effect conc.:

> 96 other: h

Basis for effect:

mortality (fish)

Remarks on result:

other: at 10 mg/L

Effect concentrations 3

Dose descriptor:

other: LT100

Effect conc.:

4 other: h

Basis for effect:

mortality (fish)

Remarks on result:

other: at 100 mg/L

Effect concentrations 4

Dose descriptor:

other: LT100

Effect conc.:

1 other: h

Basis for effect:

mortality (fish)

Remarks on result:

other: at 1000 mg/L

Effect concentrations 5

Duration:

1 h

Dose descriptor:

LC100

Effect conc.:

1 000 mg/L

Nominal / measured:

nominal

Conc. based on:

other: H2S (most likely S2- is meant)

Basis for effect:

mortality (fish)

Effect concentrations 6

Duration:

4 h

Dose descriptor:

LC100

Effect conc.:

100 mg/L

Nominal / measured:

nominal

Conc. based on:

other: H2S (most likely S2- is meant)

Basis for effect:

mortality (fish)

Applicant's summary and conclusion

Conclusions:

In this study goldfish (Carassius auratus) were exposed to a series of increasing sulfide concentrations and survival time was monitored. The LT100 values ranged from > 96 h at 1 mg/L (most likely S2-) to 1 h at 1000 mg/L (most likely S2-). From these results a 1-h and 4-h LC50 of 1000 and 100 mg/L (most likely S2-) could be derived, respectively.