Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.029 mg/L
Assessment factor:
1 000
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
0.29 mg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.003 mg/L
Assessment factor:
10 000
Extrapolation method:
assessment factor

STP

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

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
11.1 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:
22.2 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

PNEC freshwater sediment:

K_(susp-water) = 959

RHO_(susp) = 1150

Conversion factor (wwt -> dwt) = 4.6

PNEC freshwater sediment

= (K_(susp-water)/RHO_(susp)) * PNEC_water * 1000

= (959/1150)* 0.029 * 1000

= 24.2 mg/kg wwt

= 111.2 mg/kg dwt

PNEC marine water sediment:

K_(susp-water) = 959

RHO_(susp) = 1150

Conversion factor (wwt -> dwt) = 4.6

PNEC marine water sediment

= (K_(susp-water)/RHO_(susp)) * PNEC_marine water * 1000

= (959/1150)* 0.0029 * 1000

= 2.42 mg/kg wwt

= 11.1 mg/kg dwt

PNEC soil:

K_(soil-water) = 1.15E+03

RHO_(soil) = 1700

Conversion factor (wwt -> dwt) = 1.13

PNEC soil

= (K_(soil-water)/RHO_(soil))* PNEC_water * 1000

= (1.15E+03/1700)* 0.029 * 1000

= 19.6 mg/kg wwt

= 22.2 mg/kg dwt

Conclusion on classification

Acute toxicity:

Algae is the most sensitive species to the acute toxic effects of the test item with an acute ErC50 of 29 mg/L. Based on the this data, the substance has not to be classified with regard to acute environmental toxicity according to Regulation (EC) No 1272/2008 (CLP/GHS) and Directive 67/548/EEC (DSD).

Chronic toxicity:

Algae are the most sensitive species to toxic long-term effects of the test item with a chronic NOEC of 12.5 mg/L and an EC50 of 29 mg/L. As the test item is not ready biodegradable, the substance is classified as chronic cat. 3 (H412: Harmful to aquatic life with long lasting effects) according to Regulation (EC) No 1272/2008 (CLP/GHS) and as R52/53 (Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment) according to Directive 67/548/EEC (DSD).