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:
10 mg/L
Assessment factor:
100
Extrapolation method:
assessment factor

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.039 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:
0.02 mg/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

According to the CLP Regulation (EC 1272/2008), the threshold of classification of a substance for acute aquatic toxicity is 1 mg/l. This limit is compared with LC50 (96h) for fish, EC50 (48 h) for daphnia and EC50 (72 - 96 h) for algae or aquatic plants.

Test substance has high water solubility, i.e. above 300 g/l at 20 °C. The substance was soluble at concentrations reported in available tests and no signs of precipitation were reported in tested media. Moreover, test consentrations were found to be stable for tests duration.

 

In the available 96-hour test on fish, no mortality was recorded up to the highest tested dose of 1000 mg/l.

Toxicity on daphnia was assessed in a 48 -hour study, where no acute immobilisation was seen in daphnids exposed up to a concentration of 100 mg/l.

Toxicity on aquatic plants was assessed in a 7 -day test on lemna. No effects were reported at 100 mg/l concentration of a.i..

In all studies, no acute toxicity was recorded up to the highest tested doses, thus no 50 % effect levels could be established.

No chronic toxicity data was available from long-term studies. In case of lack of chronic data, the potential for chronic toxicity is identified by appropriate combinations of acute toxicity data and lack of biodegradability. The threshold of classification is 100 mg/l.

Overall, based on the lack of acute toxicity by test substance at the threshold level of 100 mg/l, no classification for both acute and chronic aquatic toxicity was applied according to the CLP Regulation (EC 1272/2008).