Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

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

Marine water

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

STP

Hazard assessment conclusion:
PNEC STP
PNEC value:
0.19 mg/L
Assessment factor:
100
Extrapolation method:
assessment factor

Sediment (freshwater)

Hazard assessment conclusion:
insufficient hazard data available (further information necessary)

Sediment (marine water)

Hazard assessment conclusion:
insufficient hazard data available (further information necessary)

Hazard for air

Air

Hazard assessment conclusion:
no hazard identified

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
PNEC soil
PNEC value:
0.21 mg/kg soil dw
Assessment factor:
100
Extrapolation method:
assessment factor

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

Following the assessment factor method is suggested when the available data sample size does not allow for a statistical extrapolation approach. Long-term NOECs have been identified for two trophic levels, and the lowest NOEC was used for PNEC(freshwater) derivation using a safety factor of 50. For PNEC (marine), the PNEC (freshwater) was adopted due to lack of marine data. For PNEC(intermittent) the lowest L(E)C50 was used, and a safety factor of 10 was applied, according to the guideline in R.10, leading to PNEC(intermittent) lower than the lowest NOEC.

Conclusion on classification

The substance is readily biodegradable and does not bioaccumulate. The toxicity to aquatic organisms is characterised by LC50 values ≤ 1 mg/l, and therefore the substance is classified as H400: Very toxic to aquatic life.

The M-factor is 100, based on the toxicity with LC50 values of ≥ 0.001 and ≤ 0.01.