Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.106 mg/L
Assessment factor:
100
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
0.072 mg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.011 mg/L
Assessment factor:
1 000
Extrapolation method:
assessment factor

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:
307.16 mg/kg sediment dw
Extrapolation method:
equilibrium partitioning method

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
30.72 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:
1.234 mg/kg soil dw
Assessment factor:
10
Extrapolation method:
assessment factor

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

DATA used for calculation

Vapour pressure:            0.018                     Pa               20°C

Water Solubility:             0.483                     mg/l

Koc                                426580

EC10 daphnia              7.2                     mg/l

Terrestrial plant              12.34                     mg/kg dw soil

Acute toxicity on aerobic waste-water bacteria NOEC        100 mg/l

Conclusion on classification

The substance was tested for three trophic levels in the aquatic enviroment using acute test design and the most sensitive species was Daphnia magna. The substance is readily biodegradable but is of extremely low water solubility.

The following effect levels are provided based on the presently conducted studies:

Fish- NOEC 100 mg/L
Algae- NOEC 500 mg/L
Daphnia-  EL50 7.2 m/L loading rate WAF

Based on the available data, the substance is not classified for environment according to Annex VI. According to UN GHS section 4.1.2.2, For such poorly soluble substances, the toxicity may not be adequately assessed in short-term testing. The effect level provided from testing using solvents exceeds the water solubility of the substance by a factor of >ten and limited confirmation of dose levels was possible.

The need for classification was negated by demonstrating that the substance does not require classification for aquatic long-term (chronic) hazards.