Registration Dossier

Administrative data

Hazard for aquatic organisms

Hazard for air

Hazard for terrestrial organisms

Hazard for predators

Additional information

Conclusion on classification

Short-term toxicity results for Daphnia and algae are available for the substance. The 48h-EL50 value to Daphnia magna was >100 mg/L WAF based on nominal loading rates. The ErL50 for algae was 58 mg/L WAF based on nominal loading rates. Since the acute EL50 values are >1 mg/L, the substance is not lassified as for acute toxicity according to EU CLP (Table 4.1.0; a).

The only available chronic value is the EL10 of algae being 21 mg/L. According to CLP Figure 4.1.1, the chronic classification has to be determined based on this chronic value according to Table 4.1.0, (b) (i) (as the substance is not readily biodegradable) and based on adequate acute toxicity data of the other trophic level, being the EL50 value for Daphnia, in combination with environmental fate data according to Table 4.1.0, (b) (iii).

The most stringent outcome should be leading:

- The substance is not readily biodegradable. Based on the EL10 > 1 mg/L, the substance does not need to be classified for chronic toxicity according to Table 4.1.0, (b) (i)

- As the EL50 value for Daphnia is >100 mg/L and the substance is not readily biodegradable and has a log Kow >4, the substance does not need to be classified for chronic toxicity according to Table 4.1.0, (b) (iii). The safety net doesn’t apply as we have a NOEC for algae with a value of > 1 mg/L.

 

Overall, it can be concluded that the substance does not need to be classified for aquatic environmental hazards according to Regulation 1272/2008/EC (CLP) and its updates.