Registration Dossier

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Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.11 mg/L
Assessment factor:
10
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
0.11 mg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.011 mg/L
Assessment factor:
100
Extrapolation method:
assessment factor

STP

Hazard assessment conclusion:
PNEC STP
PNEC value:
29.2 mg/L
Assessment factor:
10
Extrapolation method:
assessment factor

Sediment (freshwater)

Hazard assessment conclusion:
no exposure of sediment expected

Sediment (marine water)

Hazard assessment conclusion:
no exposure of sediment expected

Hazard for air

Air

Hazard assessment conclusion:
no hazard identified

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
no exposure of soil expected

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

A justification for read across for the endpoint - long-term toxicity to aquatic invertebrates (21 d daphnid reproduction test): see attached read across justification to the chemical safety report.

Conclusion on classification

For Magnesium acrylate aqueous solution (48%): no classification according to regulation (EC) 1272/2008.

EC 50 (fish (96 h) and daphnia (48 h)): > 100 mg/l

ErC50/ ErC10 algae (72 h) = 4.94/ 1.1 mg/l and are thus in the range of 1 - 10 mg/l, but magnesium acrylate is readily biodegradable and has no bioaccumulation potential (log Kow -1.89). Therefore, magnesium acrylate does not need to be classified as hazardous to the aquatic environment according to the criteria of CLP-regulation (EC) 1272/2008.