Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

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

Marine water

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

STP

Hazard assessment conclusion:
PNEC STP
PNEC value:
100 mg/L
Assessment factor:
10
Extrapolation method:
assessment factor

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
51.2 mg/kg sediment dw
Assessment factor:
1 000
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:
102 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

The environmental classification of T001159 is currently not harmonized according to the CLP Regulation (EC) 1272/2008. Based on available acute aquatic toxicity data, the lowest valid effect concentration for freshwater aquatic organisms is 12 mg/L (EC50 for algae).

Based on the available acute data, the substance should not be classified for acute toxicity following Annex I, table 4.1.0 a of the CLP regulation (there are no acute values ≤ 1 mg/L).

In the algal growth inhibition study, the NOErC for algae was biologically significant at 1 mg/L respectively. No other long-term values are available. We compared this chronic effect concentration for algae combined with environmental fate against the lowest acute effect concentration of the 3 trophic levels (EC50 of 12 mg/l for algae) and took the most conservative result forward for classification, following Annex I, table 4.1.0 b of the CLP Regulation. Taking into account the available chronic and acute data, as well as the fact that the substance is not rapidly degradable and its log Kow is < 4, the substance should be classified as Aquatic Chronic 2 under the CLP Regulation.