Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.634 µg/L
Assessment factor:
1 000
Extrapolation method:
assessment factor

Marine water

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

STP

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

Sediment (freshwater)

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

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.075 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:
0.149 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

Conclusion on classification

Short-term toxicity results for fish, Daphnia and algae are available for the substance. The 96-h LC50 value for fish is 0.805 mg/L, the 48-h EC50 value for Daphnia is 0.634 mg/L, and the 72-h ErC50 value for algae is 0.692 mg/L. Since the acute toxicity values are ≤ 1 mg/L, the substance needs to be classified as Acute Cat. 1 (H400) according to EU CLP (EC No. 1272/2008 and its updates; Table 4.1.0; a).  

Chronic toxicity data are available only for algae. The 72-h ErC10 value is 0.273 mg/L. According to CLP Figure 4.1.1, the chronic classification has to be determined based on the chronic value for algae according to Table 4.1.0, (b) ii, as well as the lowest acute value available for fish and Daphnia according to Table 4.1.0, (b) iii, and the most stringent outcome should be leading:

The substance is readily biodegradable and has a chronic toxicity value of > 0.1 but ≤ 1 mg/L. Based on this information, the substance needs to be classified as Chronic Cat. 3 according to according to Table 4.1.0, (b) ii.

- The substance is readily biodegradable, has a log Kow value of >4 and an acute toxicity value of ≤ 1 mg/L (daphnids). Based on this information, the substance needs to be classified as Chronic Cat. 1 according to Table 4.1.0, (b) iii.  

Overall, it can be concluded that the substance needs to be classified as Acute Cat 1 (H400) and as Chronic Cat 1 (H410) according to EU CLP (EC No. 1272/2008 and its updates.