Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0 mg/L
Assessment factor:
1 000
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
0.001 mg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0 mg/L
Assessment factor:
10 000
Extrapolation method:
assessment factor

STP

Hazard assessment conclusion:
PNEC STP
PNEC value:
1.64 mg/L
Assessment factor:
100

Sediment (freshwater)

Hazard assessment conclusion:
no exposure of sediment expected

Sediment (marine water)

Hazard assessment conclusion:
no exposure of sediment expected

Hazard for air

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
no exposure of soil expected

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

Aquatic PNECs
Data has been obtained from studies conducted with potassium permanganate (an appropriate read across material). Acute toxicity data are available for fish, Daphnia and algae.  The lowest acute toxicity endpoint use for use in determining the freshwater aquatic PNEC is the Daphnia acute 48 hour EC50 value of 0.06 mg/L.

The following PNECs were calculated using this endpoint:

PNEC Aqua (freshwater) - Based on an assessment factor of 1000, the PNEC is 0.00006 mg/L.

PNEC Aqua (marine water) - Based on an assessment factor of 10000 the PNEC is 0.000006 mg/L.

PNEC Aqua (intermittent releases) - Based on an assessment factor of 100 the PNEC is 0.0006 mg/L.

 

 

STP PNEC

The 3 hour EC50 obtained from an activated sludge respiration study was 164 mg/L. Based on an assessment factor of 100 the PNEC STP is 1.64 mg/L.

Conclusion on classification

According to Annex VI to Regulation (EC) No 1272/2008, sodium permanganate is classified for environmental hazards as: Aquatic Acute 1 (H400) – very toxic to aquatic life.

According to Regulation No 67/548/EEC (DSD), sodium permanganate is classified for environmental hazards as: N: R50/53 Dangerous for the environment; Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.