Registration Dossier
Registration Dossier
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EC number: 220-621-2 | CAS number: 2835-99-6
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.196 µg/L
- Assessment factor:
- 50
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0.35 µg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.02 µg/L
- Assessment factor:
- 500
- Extrapolation method:
- assessment factor
- PNEC marine water (intermittent releases):
- 0.035 µg/L
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 0.323 mg/L
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 0.001 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0 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:
- 0.096 µg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- PNEC oral
- PNEC value:
- 9.5 mg/kg food
- Assessment factor:
- 90
Additional information
Conclusion on classification
The substance 4 -amino-m-cresol is not readily biodegradable and it is not potentially bioaccumulable.
The highest acute toxicity obtained on aquatic organisms (fish, Daphnia and algae) by the substance 4-amino-m-cresol was on algae with a 72h-EC50_growth rate = 0.035 mg/L resulting in theshort-term aquatic classification "Category Acute 1".
In chronic tests, 2 results are available on Daphnia and algae, and the lowest data is again observed on algae with a 72h-EC10_growth rate = 0.0098 mg/L. This value combined with the lack of ready biodegradion of the 4 -amino-m-cresol, led to thelong-term aquatic classification "Category chronic 1" with a M factor of 10.
The substance 4 -amino-m-cresol is classified for the environment "Category Acute 1" and "Category chronic 1" with a M factor of 10.
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