Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
2.05 µg/L
Assessment factor:
100
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
2.05 µg/L

Marine water

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

STP

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

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
3.87 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:
0.375 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

Conclusion on classification

Biodegradation:

-       Not readily biodegradable (24% after 28 d, EU Method C.4-E)

Bioaccumulation:

-       log Kow: 2.8 (at 24.7 °C, EU Method A.8, HPLC method)

Acute toxicity:

-       Fish: LC50 (96 h) = 0.205 mg/L (geom. mean meas., D. rerio, OECD 203)

-       Aquatic Invertebrates: EC50 (48 h) = 11.3 mg/L (arithm. mean meas., D. magna, OECD 202)

-       Algae: ErC50 (72 h) = 69.2 mg/L (geom. mean meas., P. subcapitata, OECD 201)

Chronic toxicity:

-       Fish: not available

-       Aquatic invertebrates: NOEC (21 d) = 3.2 mg/L (mean measured, D. magna, OECD 211).

-       Algae: ErC10 (72 h) = 30.2 mg/L (geom. mean meas., P. subcapitata, OECD 201)

 

Classification according to CLP

Aquatic acute toxicity data are available for all three trophic levels whereas chronic data are available for aquatic invertebrates and algae. The substance is not rapidly degradable in the environment and has a low potential for bioaccumulation (Log Kow = 2.8). Fish was found to be the most sensitive species in short term aquatic studies with an LC50 (96 h) of 0.205 mg/L (geom. mean meas.). The lowest long-term effect value was determined for aquatic invertebrates with a NOEC (21 d) of 3.2 mg/L (mean measured). Thus, the substance needs to be classified and labeled as “Aquatic Acute 1” (H400) and “Aquatic Chronic 1” (H410) according to the consolidated version of Regulation (EC) No 1272/2008 and further amendments (ATPs).