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Ecotoxicological information

Ecotoxicological Summary

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Hazard for aquatic organisms

Freshwater

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

Marine water

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

STP

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

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
2.9 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:
0.63 mg/kg soil dw
Assessment factor:
1 000
Extrapolation method:
assessment factor

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
PNEC oral
PNEC value:
0.38 g/kg food
Assessment factor:
90

Additional information

Formula for the calculation of PNECsed using the equilibrium partitioning approach for sediment (as shown in the REACH guidance, chapter R16):

PNEC(sed) = (Ksed-water x PNEC(aqua) / RHOsed) * 1000

PNEC(sed) Predicted No Effect Concentration in sediment [mg/kg]: as shown above.

Kp-sed [l/kg]: 0.231.

Ksusp-water partition coefficient freshwater sediment / water [m3/m3]: 0.958.

RHOsed bulk density of freshwater sediment matter [kg/m3]: 1150.

PNECaqua Predicted No Effect Concentration in water [mg/kg]: as shown above.

PNEC marine predicted to be 0.658mg/kg based on same method and the PNEC(marine) shown above.

The PNEC oral is derived using the critical oral mammalian NOAEL (in mg/kg bw ) as a starting point. This is then converted to a NOEC (in mg/kg food) using the conversion factors in table R10-12 of the guidance from which the PNEC is derived by using the appropriate assessment factor in table R10 -13.

Conclusion on classification

The acute toxicity of ethanol to aquatic species is >100mg/l for all trophic levels. This coupled with its ready biodegradability mean that it does not meet the criteria for classification.