Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
no hazard identified

Marine water

Hazard assessment conclusion:
no hazard identified

STP

Hazard assessment conclusion:
no hazard identified

Sediment (freshwater)

Hazard assessment conclusion:
no hazard identified

Sediment (marine water)

Hazard assessment conclusion:
no hazard identified

Hazard for air

Air

Hazard assessment conclusion:
no hazard identified

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
no hazard identified

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

Acute freshwater aquatic toxicity was measured for a fish, the rainbow trout, an invertebrate, the water flea Daphnia magna, and the green algae Pseudokirchneriella subcapitata. Following applicable guidance, the 96-hour fish study was conducted as a semi static test whilst the 72-hour algae and 48-hour Daphnia studies were static tests. The following results were determined: For fish, the 96-Hour LC50 based on the geometric mean measured test concentrations was 13 mg/L. The NOEC was 10 mg/L; for algae, the 72-hour EC50 based on the time-weighted mean measured test concentration was 85 mg/L. The NOEC was 23 mg/L; for Daphnia, the 48-h EC50 was found to be 31 mg/L. Based on these results the test material is not acutely toxic to fish, invertebrates or algae. Furthermore, the substance has been found to be readily biodegradable and has a Log Koc of 1.92 and a Log Kow of 2.7 so is unlikely to adsorb to sediment and soil. As such, the substance is not classified for the environment in accordance with Regulation (EC) 1272/ 2008 and it is considered unnecessary to derive PNECs for aquatic and terrestrial organisms.

Conclusion on classification

Three acute, aquatic toxicity studies have been conducted on the test material, an acute toxicity to rainbow trout study, 48-hour immobilisation test using Daphnia magna and an algal growth inhibition study. All studies were conducted according to OECD guidelines and GLP and are adequately reported and therefore have been assigned a reliability 1.

The substance does not meet the criteria as an acute or chronic aquatic hazard, in accordance with Regulation (EC) 1272/ 2008, as the E(L)C50values for the fish, Daphnia and algae are all > 1 mg/L, the test item is considered to be readily biodegradable and has a log Kow is < 4.