Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.015 mg/L
Assessment factor:
10
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
0.009 mg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.002 mg/L
Assessment factor:
100
Extrapolation method:
assessment factor
PNEC marine water (intermittent releases):
0.009 mg/L

STP

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

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.035 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:
10
Extrapolation method:
assessment factor

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

Conclusion on classification

Key parameters for classification

Degradation

Biodegradation: readily biodegradable (83% degradation after 28 d, DOC removal, EU-method C. 4-B)

Bioaccumulation

log Pow: 2.73 at pH 7.2 and 25 °C (nonionic form)

 

Aquatic acute toxicity

For fish: 96 h, LC50 : 0.917 mg/L (arithmetic mean measured concentration; Oncorhynchus mykiss, EPA OPP 72-1)

For aquatic invertebrates: 48 h, EC50 : 2.29 mg/L (measured arithmetic mean concentration; Daphnia magna, EPA OPP 72-2)

For algae/aquatic plant: 72 h, ErC50 : 30.62 mg/L (nominal; Pseudokirchneriella subcapitata, OECD 201)

 

Aquatic chronic toxicity

For fish: 28 d, NOEC: 0.15 mg/L (measured concentration; (Oncorhynchus mykiss, OECD 215)

For aquatic invertebrates: 21 d, NOEC : 0.32 mg/L (nominal; Daphnia magna, OECD 211)

For algae/aquatic plant: 72 h, ErC10 (Pseudokirchneriella subcapitata, OECD 201): 13.37 mg/L (nominal)

Based on the data above the substance has to be classified as Aquatic Acute 1 (H400) since the acute effect concentration for freshwater fish is < 1 mg/L. For chronic toxicity, data from three different trophic levels are available. Freshwater fish turned out to be the most sensitive species with a NOEC (28 d) of 0.15 mg/L. In combination with the results from biodegradation the substance is classified as Aquatic Chronic 3 (H412) according to Regulation (EC) No 1272/2008 (consolidated version) and all following amendments (ATPs).

M-Factor acute: 1
M-factor chronic: not relevant