D-Glucopyranose, oligomeric, C10-16(even numbered) alkyl glycosides

Ecotoxicological Summary

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:

PNEC aqua (freshwater)

PNEC value:

0.176 mg/L

Assessment factor:

10

Extrapolation method:

assessment factor

PNEC freshwater (intermittent releases):

0.029 mg/L

Marine water

Hazard assessment conclusion:

PNEC aqua (marine water)

PNEC value:

0.018 mg/L

Assessment factor:

100

Extrapolation method:

assessment factor

STP

Hazard assessment conclusion:

PNEC STP

PNEC value:

5 000 mg/L

Assessment factor:

1

Extrapolation method:

assessment factor

Sediment (freshwater)

Hazard assessment conclusion:

PNEC sediment (freshwater)

PNEC value:

1.516 mg/kg sediment dw

Extrapolation method:

equilibrium partitioning method

Sediment (marine water)

Hazard assessment conclusion:

PNEC sediment (marine water)

PNEC value:

0.065 mg/kg sediment dw

Extrapolation method:

equilibrium partitioning method

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:

PNEC soil

PNEC value:

0.654 mg/kg soil dw

Assessment factor:

1 000

Extrapolation method:

assessment factor

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:

PNEC oral

PNEC value:

111.11 mg/kg food

Assessment factor:

90

Additional information

Studies with organisms from the aquatic and terrestrial compartment are available and thus, the PNECs are based on the test results and assessment factors recommended in the Technical Guidance Document (ECHA, 2008) have been applied. For the freshwater sediment, no studies have been conducted and the PNECs have been calculated using the Equilibrium Partitioning Method (EPM) as screening values. The EPM was used for the the calculation of the PNEC sediment (marine water) as well because only short-term studies are available. The PNEC oral is derived from a toxicological endpoint as the toxicity towards birds has not been tested.

Conclusion on classification

Classification related key information

Biodegradation in water: screening tests: 88% (CO2 consumption) in 28 d (OECD 301D)

log Kow: <=0.07 (calculated from water solubility and solubility in octanol, OECD 107)

Acute toxicity:

to fish: LC50 (96 h) = 2.95 mg/L for Brachydanio rerio (OECD 203)

to algae: ErC50 (72 h) = 12.5 mg/L for Scenedesmus subspicatus (DIN 38412, part 9)

to crustacea: EC50 (48 h) = 7 mg/L for Daphnia magna (OECD 202)

Chronic toxicity:

to fish: NOEC (28 d) = 1.8 mg/L for Brachydanio rerio (OECD 204)

to algae: NOErC (72 h) = 1.8 mg/L for Skeletonema costatum (ISO 10253)

to crustacea: EC10 = 1.76 mg/L for Daphnia magna (OECD 202 part II)

Classification justification according to CLP

Based on the data above, D-Glucopyranose, oligomeric, C10 -16 -alkyl glycosides is considered to be rapidly degradable and have low potential for bioaccumulation. The acute aquatic toxicity L(E)C50 values are > 1 mg/L for fish, algae and Daphnia. Valid chronic toxicity data are available for three trophic levels - the lowest EC10 is 1.76 mg/L for Daphnia. Therefore, D-Glucopyranose, oligomeric, C10 -16 -alkyl glycosides does not need to be classified and labelled as environmental hazard according to the Regulation (EC) No.1272/2008 (CLP) and the Regulation (EU) No. 286/2011 (2^ndATP).

Classification justification according to DSD

Based on the data above, D-Glucopyranose, oligomeric, C10 -16 -alkyl glycosides is considered to be rapidly degradable and have low potential for bioaccumulation. The acute aquatic toxicity L(E)C50 values are > 1 mg/L for fish, Daphnia and algae. D-Glucopyranose, oligomeric, C10 -16 -alkyl glycosides does not need to be classified and labelled as environmental hazard according to Directive 67/548/EEC.