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):
0.003 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:
no data available: testing technically not feasible

Sediment (freshwater)

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

Sediment (marine water)

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

Hazard for air

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
PNEC soil
PNEC value:
0.29 µg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no data available: testing technically not feasible

Additional information

Short-term toxicity to fish (oryzias latipes); 96 h-LC50 = 0.380 mg/L; 96 h-NOEC = 0.327 mg/L

Short-term toxicity to aquatic invertebrates (daphnids); 48 h-EC50 = 1.4 mg/L; 48 h-NOEC = 0.12 mg/L

Toxicity to aquatic algae (selenastrum capricornutum); 96 h-EC50 = 0.93 mg/L; 96 h-NOEC < 0.49 mg/L

Conclusion on classification

The substance is classified as the acute toxicity category 1 (acute EC50 <1 mg/l).

The substance is rapidly degraded by hydrolysis to maleic acid (CAS No.108 -31 -6) and aniline (CAS No.62 -53 -3)

whose substances are known to be rapidly biodegradable (see chapter 5.2.1). And the log Pow of the substance is <4 (1.16).

Therefore, the substance is not classified in the chronic aquatic category.