Registration Dossier

Diss Factsheets

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.139 mg/L
Assessment factor:
50
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
0.15 mg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.014 mg/L
Assessment factor:
500

STP

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

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.16 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:
0.239 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

Based on the OECD screening tests OECD 301 F and OECD 301F, Ethyleneglycol dimethacrylate (EGDMA) is considered to be readily biodegradable (> 60 % biodegradation within 28 days) but failing the 10-day window. Hence, the substance is not readily biodegradable according to CLP criteria.

However, no bioaccumulation is expected according to log Pow of 2.4.

Based on the available and reliable short-term toxicity data for fish [LC50 (96h): 15.95 mg/l], daphnia magna [EC50 (48h): 44.9 mg/l) and algae [EC50: 17.3 mg/l]), EGDMA does not need to be classified for acute toxicity to aquatic organisms (cut-off value >1mg/l) according to the CLP Regulation EC No 1272/2008.

Chronic aquatic toxicity studies are available for daphnia magna and algae indicating a NOEC for daphnia magna of 5.05 mg/l and NOEC for algae of 6.93 mg/l. No chronic data are available for fish. Because adequate chronic toxicity data are thus only available for two trophic levels, additionally the short-term toxicity data of fish [LC50 (96h) of 15.95 mg/l] must be considered for the assessment of the long-term toxicity.  

Triggered by the acute fish data (L(E)C50 value in the range of >10 to≤100 mg/l), EGDMA needs to be classified for chronic toxicity to aquatic organism with Aquatic Chronic Category 3 according to CLP Regulation EC No 1272/2008.