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 aquatic toxicity data are available for three trophic levels (fish, invertebrates and algae). The acute effect values for fish (Oncorhynchus mykiss), daphnids and algae (Daphnia magna and Pseudokirchneriella subcapitata) are 3.9 mg/L, 0.43 mg/L and 11 mg/L, respectively. Based on the lowest value found for Daphnia (0.43 mg/l) the substance needs to be classified as Aquatic Acute 1 (H400) according to EU CLP (EC1272/2008) and its updates.

Long-term aquatic toxicity data are available only for aquatic algae for which an ErC10 of 4.8 mg/L is available. Based on this chronic data and the substance' readily biodegradability, the substance does not need to be classified for chronic hazard. As only one reliable long-term toxicity endpoint is available, chronic classification needs to be based on both chronic and acute data of which the most stringent outcome is used for the final classification. However, since Cyclemax is readily biodegradable and has a log Kow of 3.5 (no experimental BCF available), the substance does not need to be classified for chronic toxicity based on acute data. Therefore, the substance is not classified for chronic hazard as in accordance with EU CLP (EC1272/2008) and its updates.