Registration Dossier

Administrative data

Hazard for aquatic organisms

Hazard for air

Hazard for terrestrial organisms

Hazard for predators

Additional information

Conclusion on classification

Environmental classification and labelling of a substance is generally based on data from short-term aquatic toxicity results, the ready biodegradability of the substance and an experimentally determined BCF (or if absent the measured octanol/water partition coefficient). Available adequate chronic toxicity data is also relevant for the assessment of long-term aquatic hazards (Regulation 286/2011/EC).

In agreement with Annex VII requirements, short-term aquatic toxicity data is available for two trophic levels (daphnia and algae). The lowest short-term EC50 is for Algae, which is a 72-hour EC50 of 1.2 mg/L for growth rate. Since the EC50 is more than 1mg/L, the substance is not classified as short-term hazards to the aquatic environment according to the CLP Regulation 1272/2008/EC.

The 48 hour EC50 for the Acute Daphnia study was established to be 10.3 mg/L.

Chronic aquatic toxicity data is only available for one trophic level (algae). Therefore, the long-term hazard has been assessed based on both:

a) The chronic aquatic toxicity data for algae (ErC10 = 0.48 mg/L) and ready biodegradability of the substance, which results in a chronic 3 clasiffication and;

b) The acute aquatic toxicity data for daphnia (EC50 = 10.3 mg/L) and environmental fate data (readily biodegradable and log Kow of >4), which results in a Category Chronic 3 classification and classifying according to the most stringent outcome.

 

Thus it is concluded that the substance is classified Aquatic Chronic 3 (H412) according to the CLP Regulation 1272/2008/EC & adaptation 286/2011/EC.

 

According to the old DSD regulation, Directive 67/548/EEC, the substance would be classified as R51/53 based on the EC50 values of >1 and < 10 mg/L and log Kow of > 3.