Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
no hazard identified
PNEC value:
0.4 mg/L

Marine water

Hazard assessment conclusion:
no hazard identified
PNEC value:
0.04 mg/L
Assessment factor:
10
Extrapolation method:
assessment factor

STP

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

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
27.256 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:
54.11 mg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

Conclusion on classification

Due to lack of aquatic toxicity within limits of solubility homosalate is not classifiable for acute aquatic toxicity.

Even though homosalate is not readily biodegradable, it fulfills the CLP criteria for rapid degradation (half-life time < 16 days) as it hydrolyses fast (T1/2 = 9 days, pH 7) and the hydrolysis degradation products salicylic acid (2-hydroxylbenzoic acid) and 3,3,5-trimethylcyclohexanol are not classified as hazardous to the aquatic environment.

Therefore the substance is not classified for acute or chronic aquatic toxicity according to CLP (Regulation EC No 1272/2008) respectively DSD (Directive 67/548/EEC).