Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

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

Marine water

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

STP

Hazard assessment conclusion:
no hazard identified

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.016 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:
0.109 mg/kg soil dw
Assessment factor:
1 000
Extrapolation method:
assessment factor

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

Three EC50 are available for three different trophic levels (fish, crustacean and algae). Two EC10/NOEC are available for two different trophic levels, including the most sensitive to the acute toxicity test.

EC50 fish > 10.2 mg/L

EC50 crustacean = 10.1 mg/L

EC50 algae >4 mg/L

The most sensitive trophic level to acute toxicity is either the algae or the crustacean, but not the fish.

EC10 algae = 2.2 mg/L (chronic)

EC10 crustacean = 0.075 mg/L (chronic)

Conclusion on classification

Classification according to regulation EC 1272/2008:

N-nitrosodiphenyl amine is not rapidly biodegradable and a chronic toxicity study on invertebrates indicates an EC10 of 0.075 mg/L. N-nitrosodiphenylamine is therefore aquatic chronic category 1: very toxic to aquatic life with long lasting effects.