Registration Dossier
Registration Dossier
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EC number: 428-650-4 | CAS number: 153719-23-4
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.3 µg/L
- Assessment factor:
- 1
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0.3 µg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 11.2 µg/L
- Assessment factor:
- 50
- Extrapolation method:
- assessment factor
- PNEC marine water (intermittent releases):
- 6.9 µg/L
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:
- 1 µg/kg sediment dw
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.1 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:
- 8 µg/kg soil dw
- Assessment factor:
- 50
- Extrapolation method:
- assessment factor
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
Conclusion on classification
Short-term aquatic toxicity data are available for three trophic levels (fish, invertebrates and algae) for fresh- and saltwater species. The lowest acute effect values for fish (Oncorhynchus mykiss), aquatic invertebrates (Cloeon sp.) and algae (Pseudokirchneriella subcapitata) are 100 mg a.i./L, 0.01 mg a.i./L and 81.8 mg a.i./L, respectively. The substance needs to be classified as Aquatic Acute 1 (H400), with an M-factor of 10.
Long-term aquatic toxicity data are available for three trophic levels (fish, invertebrates and algae) for fresh- and saltwater species. The lowest chronic effect values for fish (Cyprinodon variegatus), sediment invertebrates (Chironomus riparius) and algae (Pseudokirchneriella subcapitata) are 1.7 mg a.i./L, 0.01 mg a.i./L and 81.8 mg a.i./L, respectively. In addition, chronic effects on the mayfly were tested in outdoor mesocosms representative of a typical pond community. The NOEC for effects on larval abundance and emergence of Cloeon dipterum was 0.3 μg a.s./L over the five weeks of constant exposure.
Regarding the adequate chronic aquatic toxicity data (lowest value ≤ 0.001 mg/L) and the substance being not readily biodegradable, the substance needs to be classified as Aquatic Chronic 1 (H410) with an M-factor of 100.
In conclusion, the substance is classified as Aquatic Acute 1 (H400) and Aquatic Chronic 1 (H410), with an M-factor of 10 and 100 respectively, as in accordance with EU Classification, Labelling and Packaging of Substances and Mixtures (CLP) Regulation No. 1272/2008.
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