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).

 

Short-term aquatic toxicity data is available for two trophic levels (daphnia and algae). The lowest short-term L(E)C50 is for daphnia: the 48-hour EC50 is 51 mg/l. Since the EC50 is > 1mg/L the substance is not classified for short-term hazards to the aquatic environment according to the CLP Regulation 1272/2008/EC.

 

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 (72 hr ErC10 = 240 mg/l), which results in no chronic classification because the value is > 1 mg/L, and 

b) The acute aquatic toxicity data for daphnia (EC50 = 51 mg/L) and environmental fate data (readily biodegradable and log Kow range of 1.9 to 3.5), which results in no chronic classification.

 

Thus it is concluded that the substance is not classified for long-term haards to the environment 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 also not be classified for environmental hazard because the EC50 values are > 10 mg/L and teh substance is readliy biodegradable.