Registration Dossier
Registration Dossier
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EC number: 278-636-5 | CAS number: 77182-82-2
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.004 mg/L
- Assessment factor:
- 10
- PNEC freshwater (intermittent releases):
- 0.001 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0 mg/L
- Assessment factor:
- 100
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 10 mg/L
- Assessment factor:
- 100
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 0.016 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.002 mg/kg sediment dw
- 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:
- 0.019 mg/kg soil dw
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
Conclusion on classification
The data relevant for classification is summarised below. For the acute and chronic classification, a M-factor of 1 has to be applied.
Endpoint |
Classification criteria CLP (Regulation 1272/2008/EC) |
Relevant data for Glufosinate-ammonium |
Degradation |
not rapidly degradable |
not rapidly degradable -t1/2biodegradation in surface water: - t1/2biodegradation in soil: DT50 = 6.5 days - t1/2(hydrolysis): stable - t1/2(photolysis):stable |
Bioaccumulation |
log Kow >4 and/or experimentally determined BCF ≥ 500 |
log Kow <1 (pH 5, 7 and 9) Not bioaccumulative BCF <1 (Lepomis macrochirus; measured) |
Acute aquatic toxicity |
Category Acute 1: L(E)C50 ≤ 1 mg/L |
Lowest relevant acute aquatic endpoint: ErC50 (72 h) = 0.132 mg a.s./L (nominal concentration) for Anabaena flos-aquae |
Chronic aquatic toxicity for not rapidly degradable substances |
Category Chronic 1 (not rapidly degradable): NOEC or ECx ≤ 0.1 mg/L |
Lowest relevant chronic aquatic endpoint: NOEC (72 h): 0.039 mg a.s./L (nominal concentration) forAnabaena flos-aquae |
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