Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.002 mg/L
Assessment factor:
1 000
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
0.019 mg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0 mg/L
Assessment factor:
10 000
Extrapolation method:
assessment factor
PNEC marine water (intermittent releases):
0 mg/L

STP

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

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.16 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:
0.317 mg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential to cause toxic effects if accumulated (in higher organisms) via the food chain

Additional information

PNECs have been derived for freshwater, marine water, intermittent releases and the STP. The PNECs were calculated using endpoints obtained using freshwater aquatic species and STP microorganisms. PNECS for freshwater and marine sediment, and for soil were calculated from the PNEC freshwater using the equilibrium partitioning method (EPM). No PNECS were calculated for air, or secondary poisoning as they are deemed to be unnecessary. The PNECs are as follows:

PNEC freshwater = 0.0019 mg/L

PNEC marine water = 0.00019 mg/L

PNEC intermittent = 0.011 mg/L

PNEC STP = 100 mg/L

PNEC sediment (freshwater) = 1.6 mg/kg dw

PNEC sediment (marine) = 0.16 mg/kg dw

PNEC soil = 0.317 mg/kg dw

Conclusion on classification

As there are long-term results available on the aquatic toxicity of the substance to three trophic levels, and the substance is readily biodegradable, the classification criteria in ECHA Guidance on the Application of the CLP Criteria (v5.0, 2017), Table 4.1.0(b)(ii) were used. As the lowest EC10 was 0.019 mg/L, the substance is classified as Aquatic Chronic Category 2.