Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

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

Marine water

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

STP

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

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.015 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:
1.97 mg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

The short-term toxicity test results are avilable for the three trophic level (fish, daphnia and algae). The LC50/EC50 values of >101.8 mg/L (fish), >0.31mg/L (invertebratae) and >0.23mg/L (algae) exceed the water solubility of the substance. This indicates that a toxic concentration cannot be reached in the environment following short-term exposure. Therefore the substance is not classified for acute aquatic toxicity. For the purpose of PNEC calculation, a LC50/EC50 value of 100 mg/L is used.

The assessment factor is 1000 for no long-term toxicity to aquatics. The PNEC fresh-water is derived by dividing EC50 by 1000. Thus, the PNEC fresh-water is 0.1 mg/L. for lacking the aqatic toxicity test for marine water, we derived the PNEC marine-water by deviding the EC50 of the aquaic toxicity test for fresh water by 10000. Thus the PNEC marine-water is 0.01 mg/L. The PNEC intermittent releases is derived by deviding the EC50 of the aquatic toxicity test for fresh water by 100. Thus the PNEC intermittent releases is 1 mg/L. The PNECstp is derived by dividing the EC50 of microorganisms in sludge by 100. Thus, PNECstp is 1 mg/L. For lacking the toxicity test data for sediment dwelling organisms and soil dwelling organisms, the partition coefficient method is adpoted to derive the PNECsed (fresh water), PNECsed (marine water) and PNECsoil

Conclusion on classification

From the available short-term toxicity results for aquatic organism, no toxicity was observed up and exceeding the water solubility (< 0.025 mg/l). Thus, it is not classified for aquatic toxicity.