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Hazard for aquatic organisms

Hazard for air

Hazard for terrestrial organisms

Hazard for predators

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Conclusion on classification

Short-term aquatic toxicity data are available from a read-across for three trophic levels (fish, invertebrates and alga). The lowest acute is a 48-h EC50 of 3.8 mg/L in algae (Desmodesmus subspicatus). Since the lowest acute toxicity value is > 1 mg/L, the substance does not need to be classified as acute aquatic toxic according to EU CLP (EC no. 1272/2008 and its amendments: Table 4.1.0; a). 

 Long-term aquatic toxicity data are available only from a read-across to a study with algae Desmodesmus subspicatus in which an ErC10 value of 1.1 mg/L was derived. Furthermore, the substance is classified as not readily biodegradable. The log Kow is 4.9 (no experimentally determined BCF value is available). According to EU CLP Figure 4.1.0, the chronic classification has to be determined based on the chronic value for algae according to Table 4.1.0, (b) i, as well as the lowest acute value for the other tropic levels according to Table 4.1.0, (b) iii, and the most stringent outcome should be leading:

- The substance has a chronic toxicity value of > 1 mg/L. Based on this information, the substance does not need to be classified as Aquatic Chronic, according to Table 4.1.1, (b) i.

- The lowest acute toxicity value falls between > 1 but ≤ 10 mg/L but is not readily biodegradable and has a log Kow > 4 (4.9). Based on this information, the substance needs to be classified as Aquatic Chronic Cat. 2 according to Table 4.1.0, (b) iii.

Overall, it can be concluded that the substance needs to be classified as Aquatic Chronic Category 2, H411 (Toxic to aquatic life with long lasting effects) according to EU CLP (EC 1272/2008 and its amendments.

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