Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

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

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
62 ng/L
Assessment factor:
500
Extrapolation method:
assessment factor
PNEC marine water (intermittent releases):
0.1 mg/L

STP

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

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
21.5 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:
42.6 µg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

Conclusion on classification

The test substance is not readily biodegradable according to OECD criteria and considered not bioaccumulative according PBT criteria due to the BCF of 689 - 758.

Three trophic levels in aquatic toxicology are covered by acute toxicity tests. In all three tests no acute toxic effects could be observed up to the limit of solubility. The test substance is with high probability not acutely harmful to aquatic organisms.

Additionally, a water solubility of 1.9 and 2.8 mg/L was measured (> 1 mg/L).

According to Regulation (EC) No. 1272/2008 a "safety net" classification Chronic Category 4 has to be used for poorly soluble substances (solubility < 1 mg/L) for which no acute toxicity is recorded at levels up to the water solubility, and which are not rapidly degradable and have an experimentally determined BCF ≥ 500 (or, if absent, a log Kow ≥ 4), indicating a potential to bioaccumulate; they will be classified in this category unless other scientific evidence exists showing classification to be unnecessary.

However, since the test substance is not poorly soluble and has a water solubility of above 1 mg/L the test substance is not classified.