Propane-1,2-diyl dibenzoate

Ecotoxicological Summary

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:

PNEC aqua (freshwater)

PNEC value:

0.006 mg/L

Assessment factor:

50

Extrapolation method:

assessment factor

PNEC freshwater (intermittent releases):

0.015 mg/L

Marine water

Hazard assessment conclusion:

PNEC aqua (marine water)

PNEC value:

0.001 mg/L

Assessment factor:

500

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:

2.39 mg/kg sediment dw

Extrapolation method:

equilibrium partitioning method

Sediment (marine water)

Hazard assessment conclusion:

PNEC sediment (marine water)

PNEC value:

0.239 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:

1 mg/kg soil dw

Assessment factor:

1 000

Extrapolation method:

assessment factor

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:

no potential for bioaccumulation

Conclusion on classification

Propylene glycol dibenzoate (PGDB) is not classified for the environment in accordance with Regulation (EC) No 1272/2008. The species most sensitive to PGDB is algae and therefore according to the Guidance on the Application of the CLP Criteria (Version 5.0 – July 2017), the EC₅₀ (growth rate) is preferred for use in classification. The EC₅₀ (growth rate) for PGDB is 1.53 mg/L and is classified as readily biodegradable, with a log K_ow of 3.9 and therefore it does not meet the criteria for classification for aquatic toxicity (Aquatic Chronic 3. criteria = algae EC₅₀ (growth rate) of <1mg/L).