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Ecotoxicological information

Ecotoxicological Summary

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Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
11.4 µg/L
Assessment factor:
10
Extrapolation method:
assessment factor

Marine water

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

STP

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

Sediment (freshwater)

Hazard assessment conclusion:
PNEC sediment (freshwater)
PNEC value:
5 mg/kg sediment dw
Assessment factor:
100
Extrapolation method:
assessment factor

Sediment (marine water)

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

Hazard for air

Air

Hazard assessment conclusion:
no hazard identified

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
PNEC soil
PNEC value:
171.41 mg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
PNEC oral
PNEC value:
33.3 mg/kg food
Assessment factor:
90

Additional information

Conclusion on classification

Cashew Nutshell Extract, Decarboxylated, Distilled (Distilled Grade) has a low water solubility (0.3 mg/l), a high log Kow of 6.2, a low vapour pressure (0.00005 Pa at 25oC) and is readily biodegradable.Short-term toxicity tests on algae and fish using the structurally similar substance Technical Grade indicated that there were no toxic effects at the water solubility limit. In a 21-dayDaphnia magnaReproduction Test no effects on reproduction, parental mortality and growth were evident in daphnids exposed to Water Soluble Fractions (WSFs) prepared at any of the loading rates between 1.0 to 10 mg/l. On the basis of the analytical data the 21-day No Observed Effect Concentration (NOEC) was below the water solubility limit and equates to a value of 0.114 mg/l (113.5 µg/l) based on the measured concentrations of the three forms of cardanol. In a Bioaccumulation in Fish study the individual BCF values obtained for the four cardanol components in the UVCB, both before and after lipid normalisation, were below the threshold value of 2000 L/kg in all cases. On this basis the test substance is not considered to be bioaccumulative. According to the GHS, Cashew Nutshell Extract, Decarboxylated, Distilled (Distilled Grade) is classified as Long-Term (Chronic) Aquatic Hazard Category 3 Chronic 3 for rapidly degradable substances for which there are adequate toxicity data available. This results in Aquatic Hazard Classification H412 ‘Harmful to aquatic life with long lasting effects’