Registration Dossier

Ecotoxicological information

Endpoint summary

Administrative data

Description of key information

Additional information

Toxicity to fish, aquatic invertebrates, and algae:

Experimental short-term fish and invertebrate data for the registered substance exhibit acute aquatic toxicity >0.1 and <=1mg/L. Experimental data for algae exhibited ErC50 and NOErC values of 3.2 mg/L and 2.2 mg/L, respectively. QSAR results for long-term fish and invertebrate for the registered substance estimate chronic toxicity >0.01 and <=0.1 mg/L. This supporting QSAR information is provided by acute and chronic aquatic toxicity values calculated using the neutral organics structure-activity relationship in the ECOSAR computer program (Nabholz and Mayo-Bean, 2009) of EPISuite. Validity and applicability of the QSAR are described in a document attached as background material to the QSAR endpoint study record.

Measured data demonstrate that the QSAR estimations accurately predict aquatic effects from short and long-term continuous exposure to the registered substance (as is obtained under test conditions).

Toxicity to microorganisms:

In a test for Nitrification Inhibition using Nitrosomonas sp., Alcohols, C11-14-iso, C13-rich exhibited no inhibition at the highest nominal concentration tested. This resulted in a 4-hour NOELR (No Observed Effect Loading) of 105.3 mg/l, based on nitrification rate.