Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

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

Marine water

Hazard assessment conclusion:
no data: aquatic toxicity unlikely

STP

Hazard assessment conclusion:
no data: aquatic toxicity unlikely

Sediment (freshwater)

Hazard assessment conclusion:
no exposure of sediment expected

Sediment (marine water)

Hazard assessment conclusion:
no exposure of sediment expected

Hazard for air

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
no exposure of soil expected

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

Conclusion on classification

Acute aquatic toxicity (based on the lowest of available toxicity values) is greater than 100 mg/l. The M-factor does not need to be established. Acute toxicity testing on fish was regarded scientifically unnecessary based on the acute ecotoxicity test results on daphnids and algae as well as the physico-chemical properties and environmental fate and pathways of the substance.

EC50 (D. magna,48 h) 4335 mg/l

EC50 (D. supcapitatus, 72 h) 1199 mg/l

EC10 (D. supcapitatus, 72 h) 120.2 mg/l

NOEC (D. supcapitatus, 72 h) <312.5 mg/l

Degradation:

Biotic degradation : Mineralisation 88 % during 28 d; test method OECD 301B.

Conclusion: readily biodegradable in water

Abiotic degradation (hydrolysis): no data available. The study is not needed because of ready biodegradability of the substance.

Bioaccumulation:

Bioconcentration factor (BCF): no data available. Log Kow-value (OECD method 107) was used for PBT assessment in absence of BCF.

Low potential for bioaccumulation; low octanol-water partition coefficient; log Kow is -3.1 < 3.

The data for acute and chronic aquatic toxicity is conclusive but not sufficient for the classification of the substanceaccording the EU Directive 67/548/EEC and EU Classification, Labelling and Packaging of Substances and Mixtures (CLP) Regulation (EC) No. 1272/2008.