Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
4 µg/L
Assessment factor:
50
Extrapolation method:
assessment factor

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.94 µg/L
Assessment factor:
1 000
Extrapolation method:
assessment factor

STP

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

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.99 µg/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:
0.2 µg/kg soil dw
Assessment factor:
100
Extrapolation method:
assessment factor

Hazard for predators

Additional information

Conclusion on classification

AQUATIC ENVIRONMENT

Data available for 2,4 -dinitrophenol for the aquatic compartment are available for three thropic level: algae, crustaceans and fish.

Basing on ecotoxicity data, and Regulation (EC) No 1272/2008 CLP, 2,4 -dinitrophenol it can be classified as very toxic to aquatic life H400 Aquatic Acute 1.

It has to be noted that this classification is based on the only acute endpoint LC50 390 µg/L on fish, but 2,4 -dinitrophenol shows many low LC50, EC50, NOEC values for fresh and marine water that indicates also toxicity to crustacean and fish reproduction. Hence, the classification of H410 Aquatic chronic 1, very toxic to aquatic life with long lasting effects can be appropriate.

Furthermore, data on toxicity on microorganisms and soil macroorganisms as earthworms and arthropods revealed that 2,4 -dinitrophenol could be toxic for terrestrial compartment.