Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

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

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.01 mg/L
Assessment factor:
1 000
Extrapolation method:
assessment factor

STP

Hazard assessment conclusion:
PNEC STP
PNEC value:
44.6 mg/L
Assessment factor:
1
Extrapolation method:
assessment factor

Sediment (freshwater)

Hazard assessment conclusion:
PNEC sediment (freshwater)
PNEC value:
0.334 mg/kg sediment dw
Extrapolation method:
equilibrium partitioning method

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.033 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:
0.042 mg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

Conclusion on classification

Key data environmental classification:

  • Short term fish: LC50 for freshwater fish: 75 mg/L
  • Short term Daphnia: EC50/LC50 for freshwater invertebrates: 42.81 mg/L
  • Short term algae: EC50 for freshwater algae: 74.32 mg/L
  • Long term Daphnia: NOEC (21 d) for freshwater invertebrates: 10 mg/L
  • Long term algae: EC10 (72 h, growth rate) for freshwater algae: 11.8 mg/L
  • Effect on micro-organisms: EC10 (18 h) for aquatic microorganisms: 44.6 mg/L
  • Biodegradability: Readily biodegradable
  • Log Kow: –2.61

Short term aquatic hazard:

Category acute 1: no classification (all acute values > 1 mg/L)

Long term aquatic hazard:

(ii) Readily biodegradable, no bioaccumulation, adequate chronic toxicity data available; no classification (all chronic values > 1 mg/L)

Considering all available data from acute and/or chronic toxicity tests on aquatic organisms and taking into account the provisions laid down in Regulation 1272/2008 CLP (GHS), including ATP 790/2009 and ATP 286/2011, maleic acid does not need to be classified as hazardous to the aquatic environment.