Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

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

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.02 mg/L
Assessment factor:
500
Extrapolation method:
assessment factor

STP

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

Sediment (freshwater)

Hazard assessment conclusion:
PNEC sediment (freshwater)
PNEC value:
1.37 mg/kg sediment dw
Extrapolation method:
equilibrium partitioning method

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.137 mg/kg sediment dw
Extrapolation method:
equilibrium partitioning method

Hazard for air

Air

Hazard assessment conclusion:
no hazard identified

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
PNEC soil
PNEC value:
0.155 mg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
PNEC oral
PNEC value:
22 mg/kg food
Assessment factor:
30

Additional information

Conclusion on classification

The substance is of low ecotoxicity. The LC50/EC50 values for the dissociation products melamine and phosphate are well above 100 mg/L. Furthermore, the chronic toxicity study to Daphnia magna did not reveal effects up to a melaminphosphate concentration of 10 mg/L. The substance has a very low logKow. There are no indications for a classification of melamine, based on ecotoxicity and/or fate and behaviour in the environment.

The substance is not a PBT or vPvB-substance, because of the low bioconcentration potential, the low partition coefficient n-octanol/water and the low ecotoxicity.