Reaction mass of disodium sulphide and sodium hydrogensulphide

Bioaccumulation: aquatic / sediment

Administrative data

Endpoint:

bioaccumulation in aquatic species, other

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: Data from graphs. Not clear if based on wet weight or dry weight.

Data source

Reference

Reference Type:

publication

Title:

Physiology of sulfide detoxification in the isopod Saduria (Mesidotea) entomon.

Author:

Vismann B

Year:

1991

Bibliographic source:

Marine Ecology Progress Series 76, 283-293

Materials and methods

Test guideline

Qualifier:

no guideline followed

Principles of method if other than guideline:

In this study, isopods of the species Saduria entomon were exposed to a single sulfide concentration in a hypoxic static water-sediment system. Prior to exposure, animals were either acclimated to hypoxia or normoxia. Sulfide concentrations were monitored in blood, muscle, and hepatopancreas.

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:

- hydrogen sulfide

Test solutions

Vehicle:

no

Test organisms

Test organisms (species):

other: Saduria entomon (isopod)

Study design

Route of exposure:

aqueous

Test type:

static

Water / sediment media type:

natural sediment: brackish

Total exposure / uptake duration:

<= 1 d

Test conditions

Test temperature:

6°C

Dissolved oxygen:

PO2 = 3 Torr (hypoxia)

Salinity:

7 g/L

Nominal and measured concentrations:

Measured: 2.6 mg S2-/L (experiment with animals acclimated to hypoxia) or 50.3 mg S2-/L (experiment with animals acclimated to normoxia)

Results and discussion

Bioaccumulation factor

Bioaccumulation factor 1

Type:

BCF

Value:

0.31 - 3.39 L/kg

Basis:

other: blood, muscle, hepatopancreas, ww

Remarks on result:

other: experiment with 10 d acclimation to hypoxia and 1 d exposure to sulfide under hypoxic conditions

Remarks:

Conc.in environment / dose:2.6 mg S2-/L

Bioaccumulation factor 2

Type:

BCF

Value:

0.38 - 1.05 L/kg

Basis:

other: blood, muscle, hepatopancreas, ww

Remarks on result:

other: experiment with 10 d acclimation to normoxia and 11 h exposure to sulfide under hypoxic conditions

Remarks:

Conc.in environment / dose:50.3 mg S2-/L

Applicant's summary and conclusion

Conclusions:

n this study, isopods of the species Saduria entomon were exposed to a single sulfide concentration in a hypoxic static water-sediment system. Prior to exposure, animals were either acclimated to hypoxia or normoxia. Sulfide concentrations were monitored in blood, muscle, and hepatopancreas. For the hypoxia acclimated organisms, BCF values of 0.31 to 3.39 L/kg ww were obtained, whereas for the normoxia acclimated organisms, BCF values of 0.38 to 1.05 L/kg ww were obtained.