Registration Dossier
Registration Dossier
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EC number: 700-323-3 | CAS number: 908020-52-0
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.1 mg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 1 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.01 mg/L
- Assessment factor:
- 10 000
- Extrapolation method:
- assessment factor
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 1 mg/L
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 0.474 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.047 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for air
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- PNEC soil
- PNEC value:
- 0.036 mg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Additional information
Short-term toxicity tests are available for all three trophic levels (fish, invertebrates and algae).
Fish
A GLP-compliant OECD guideline 203 study is available for EEA-NH4 (Kurume Laboratory, 2006b). In this semi-static limit test with analytical monitoring a 96-h LC50 value of >100 mg/L (nominal concentration) was observed in medaka (Oryzias latipes).
Invertebrates
A GLP-compliant OECD guideline 202 study is available for EEA-NH4 (Kurume Laboratory, 2006c). In this static limit test with analytical monitoring a 48-h EC50 value of >100 mg/L (nominal concentration) was observed inDaphnia magna.
Algae
A GLP-compliant OECD guideline 201 study is available for EEA-NH4 (Kurume Laboratory, 2006d). In a limit test with analytical monitoring a 72-h EC50 value of >100 mg/L and a 72-h NOErC of <100 mg/L (nominal concentrations) were observed inPseudokirchneriella subcapitata.
Furthermore, a GLP-compliant OECD guideline 209 study is available for EEA-NH4 (NOTOX, 2008). In this study with activated sludge from a municipal sewage treatment plant a 3-h EC50 value of >100 mg/L was determined.
Conclusion on classification
The L(E)C50 values were >100 mg/L for the three trophic levels tested (fish, invertebrates and algae). Therefore the substance does not need to be classified according to Directive 67/548/EEC and EU Classification, Labelling and Packaging of Substances and Mixtures (CLP) Regulation (EC) No. 1272/2008.
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