Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.15 mg/L
Assessment factor:
50
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
0.208 mg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.075 mg/L
Assessment factor:
100
Extrapolation method:
assessment factor

STP

Hazard assessment conclusion:
PNEC STP
PNEC value:
100 mg/L
Assessment factor:
10
Extrapolation method:
assessment factor

Sediment (freshwater)

Hazard assessment conclusion:
no exposure of sediment expected
PNEC value:
0.12 mg/kg sediment dw
Extrapolation method:
equilibrium partitioning method

Sediment (marine water)

Hazard assessment conclusion:
no exposure of sediment expected
PNEC value:
0.06 mg/kg sediment dw
Extrapolation method:
equilibrium partitioning method

Hazard for air

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
PNEC soil
PNEC value:
3.2 mg/kg soil dw
Assessment factor:
100
Extrapolation method:
assessment factor

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
PNEC oral
PNEC value:
3.333 mg/kg food
Assessment factor:
90

Additional information

The ecotoxicological information was gathered via experimental studies including acute and chronic studies. The NOEC values obtained from the studies were used for calculation of the various PNEC values. 

Three short term ecotoxicity studies were performed (fish, algae and daphnia). Results of these studies showed value of EC50> 440 mg/l for the most sensitive species, Juvenile turbot. From long-term studies performed with sodium bromide the NOEC value derived is 7.5 mg/l. Based on the chronic study result, PNEC values for aquatic organisms (fresh and marine) were calculated.

An NOEC of 1000 mg/l for microorganisms was derived from the activated sludge inhibition study. Based on this study the PNEC STP value was derived.

PNEC for secondary poisoning was derived from the NOAEL of 300 ppm from the subchronic oral toxicity study.

Conclusion on classification

Sodium bromide is not classified for the environment. No effects on organisms were found in the base-set tests of acute aquatic ecotoxicity.