Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.009 mg/L
Assessment factor:
1 000
Extrapolation method:
assessment factor

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.001 mg/L
Assessment factor:
10 000
Extrapolation method:
assessment factor

STP

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

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.004 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:
0.002 mg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential to cause toxic effects if accumulated (in higher organisms) via the food chain

Additional information

"Sulfonation products of disodium sulfite with (esterification products of C10-16 (even numbered) Alkyl Polyglycosides with maleic anhydride)" does not resulted a dangerous substance for aquatic organisms in the short-term studies performed. The lowest eco-toxicity value, the EC50of 9.27 mg/L based on algal biomass, does not involve neither an acute hazard for the aquatic environment, nor a long-term risk, because of the rapid degradation of the substance and of its low bioaccumulation potential.

Conclusion on classification

The test substance "Sulfonation products of disodium sulfite with (esterification products of C10-16 (even numbered) Alkyl Polyglycosides with maleic anhydride)" does not meet the criteria for the environmental hazard classification under Regulation EC 1272/2008.

Although the read-across EC50 values resulted in toxicity studies to fish, daphnia and algae are < 100 mg/l, the substance is ready biodegradable and the logKow (determined by read-across) is < 4 (-2.8).