Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
5.4 µg/L
Assessment factor:
100
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
0.1 µg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.54 µg/L
Assessment factor:
1 000
Extrapolation method:
assessment factor
PNEC marine water (intermittent releases):
10 ng/L

STP

Hazard assessment conclusion:
no emission to STP expected

Sediment (freshwater)

Hazard assessment conclusion:
no exposure of sediment expected

Sediment (marine water)

Hazard assessment conclusion:
no exposure of sediment expected

Hazard for air

Air

Hazard assessment conclusion:
no hazard identified

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
no exposure of soil expected

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
insufficient hazard data available (further information necessary)

Additional information

Conclusion on classification

With respect to acute toxicity it is noted that the two out of three available acute Daphnia Magna immobilisation studies indicated significant toxicity to aquatic invertebrates (EC50<0.01 mg/L). However a third acute toxicity study in Daphnia indicated no significant toxicity (EC50>100 mg/L). Furthermore in a long term Daphnia Magna reproduction test no immobilisation was seen at 1 mg/L over 21 days. The Daphnia Magna reproduction test is considered as most reliable of the available studies on the basis that this study indicated low potential for immobilisation. It is concluded that the substance presents little concern for acute toxicity in aquatic species. Therefore the substance will not be classified for acute aquatic toxicity. Based on result from Daphnia Magna reproduction study (OECD 211) and as noted in the Aquatic toxicity endpoint summary the NOEL for long term exposure in aquatic invertebrates was 0.45 mg/L and this was found the most sensitive species. In accordance with Annex I Table 4.1.0 (b) (i) of the CLP Regulation a classification of Chronic Cat 2 will be applied.