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The following results from short-term aqautic toxicity studies are available (results given corrected for water content of the test item):

Species  Method  L(E)C50 in mg/L
 Fish  OECD 203  >100 mg/L
 Daphnia  OECD 202  >100 mg/L
 Algae (growth)  OECD 201

 >100 mg/L

The algal growth inhibition study is the only study available which is a multigeneration study and thus also can be considered as a long-term study. A NOEC for growth of 46 mg/L was being determined (result given corrected for water content of the test item).

The inhibitory effect of the the test item Mexoryl SBO on the respiration rate of aerobic waste water microorganisms of activated sludge was investigated in a 3 -hour respiration inhibition test according to the OECD TG 209. The 3-hour NOEC (EC10) of test substance to activates sludge microorganisms was at least 1839 mg/L, equivalent to 1000 mg/L without water content.