Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.4 µg/L
Assessment factor:
50
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
5.6 µg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.04 µg/L
Assessment factor:
500
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:
0.515 mg/kg sediment dw
Assessment factor:
100
Extrapolation method:
assessment factor

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
51.5 µg/kg sediment dw
Assessment factor:
1 000
Extrapolation method:
assessment factor

Hazard for air

Air

Hazard assessment conclusion:
no hazard identified

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
PNEC soil
PNEC value:
0.564 mg/kg soil dw
Assessment factor:
50
Extrapolation method:
assessment factor

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
PNEC oral
PNEC value:
5.56 mg/kg food
Assessment factor:
90

Additional information

Conclusion on classification

Aquatic acute toxicity

96 h, LC50 (Brachydanio rerio): > 0.74 mg/L (measured concentration)

48 h, EC50 (Daphnia magna): 0.56 mg/L (nominal concentration)

72 h, IC50 (Desmodesmus subspicatus): 7.66 mg/L (nominal concentration)

 

Aquatic chronic toxicity

21 d, NOEC (Daphnia magna): 0.02 mg/L (nominal concentration)

72 h, IC10 (Desmodesmus subspicatus): 0.81 mg/L (nominal concentration)

 

Biodegradation: Not readily biodegradable, no degradation after 28 days

Partition coefficient: log Kow = 5.1

Water solubility: 1.08 mg/L at 20°C

Classification, Labelling, and Packaging Regulation (EC) No 1272/2008

Acute aquatic data for the test item are available from three trophic levels. The most sensitive species was determined to be Daphnia magna, with a key EC50 of 0.56 mg/L. The test item is therefore classified as acute aquatic toxicity category 1 with an M factor of 1, according to CLP Regulation (EC) No 1272/2008 (8th Adaptation to Technical Progress).

Chronic toxicity data are available for algae and aquatic invertebrates. Daphnids were the most sensitive species, with a NOEC of 0.02 mg/L for effects on reproduction and body length. As the substance is not rapidly degradable, the test item classified as chronic aquatic toxicity category 1 with an M factor of 1, according to CLP Regulation (EC) No 1272/2008 (8th Adaptation to Technical Progress).