Alcohols C13-15 (branched and linear, odd numbered), reaction product with 1-chloro-2,3-epoxypropane

Ecotoxicological Summary

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:

PNEC aqua (freshwater)

PNEC value:

0.007 mg/L

Assessment factor:

1 000

Extrapolation method:

assessment factor

PNEC freshwater (intermittent releases):

0.072 mg/L

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:

1 mg/L

Assessment factor:

100

Extrapolation method:

assessment factor

Sediment (freshwater)

Hazard assessment conclusion:

PNEC sediment (freshwater)

PNEC value:

6.677 mg/kg sediment dw

Extrapolation method:

equilibrium partitioning method

Sediment (marine water)

Hazard assessment conclusion:

PNEC sediment (marine water)

PNEC value:

0.677 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:

8.012 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

Study reports have been available for consideration in respect of acute tests with fish, invertebrates, algae and micro-organism. A PNECaquatic of 0.0072 mg/l has been derived from 7.2 mg/l (EL50 value-48 h) for effects on Daphnia acute toxicity test (the lowest short-term EL50 from each of three trophic levels (fish, Daphnia and algae)) by an assessment factor of 1000.

No measured data are currently available for intermittent releases therefore the intermittent releases PNEC is derived from data obtained for freshwater species (EL50 = 7.2 mg/l), applying an assessment factor of 100 to give PNECwater, intermittent = 0.072 mg/l.

The PNEC for STP is 1 mg/l based on the IC₅₀ of 100 mg/l and an assessment factor of 100.

No toxicity data are currently available for sediment-dwelling organisms. However, according to the Technical Guidance Document, PNEC_{sed (freshwater)} can be calculated by the equilibrium partitioning method. Hence, PNEC_{sed (freshwater)} = 6.677 mg/kg will be used for risk characterisation.

For the PNEC in soil, no toxicity data are currently available; therefore, it is not possible to determine a PNECsoil based on measured data. According to the Technical Guidance Document, PNECsoil can be calculated by the equilibrium partitioning method. Hence, PNECsoil = 8,012 mg/kg will be used for risk characterisation.

For the atmosphere, No data are available on the toxicity to plants or other organisms exposed via air. Based on its structure, the test substance is not expected to have ozone depleting effects and the low level of exposure makes other effects unlikely.

In the marine environment, there was no measured data are currently available for marine organisms therefore the marine PNEC is derived from data obtained for freshwater species (EL50 = 7.2 mg/l), applying an assessment factor of 10000 to give PNEC_seawater= 0.00072 mg/l. In addition, there are no measured data currently available for marine sediment organisms and therefore, the PNEC is derived by the equilibrium partitioning method to give PNEC_{marine sediment} = 0.6677 mg/kg.

Below table is the summary of the value of PNEC in each compartment.

Compartment	Value of PNEC
Freshwater	0.0072 mg/l
Freshwater sediment	6.677 mg/kg (equilibrium partitioning)
STP micro-organisms	1 mg/l
Seawater	0.00072 mg/l (extrapolation from freshwater)
Marine sediment	0.6677 mg/kg (extrapolation from freshwater)
Soil	8.012 mg/kg  (equilibrium partitioning)

Conclusion on classification

From the available information, the lowest short-term EC(L)50 from each of three trophic levels (fish, Daphnia and algae) was 7.2 mg/l loading rate WAF in Daphnia acute toxicity test and the substance was shown to rapidly degrade.

Therefore, it is not classified as per EU CLP (Regulation (EC) No 1272/2008) regulation.