(2α,4aα,8α)-hexahydro-1,1,5,5-tetramethyl-2H-2,4a-methanonaphthalen-8(5H)-one

Ecotoxicological Summary

Conclusion on classification

The classification of the test item was done according to CLP Regulation EC No 1272/2008, considering the version released on 01-04 -2016.

Acute aquatic hazard:

For acute aquatic classification, Table 4.1.0, (a) was used. The available data are:

Algae: 72h-ErC50 = 9.5 mg/L

Daphnia: 48h-EC50 = 2.3 mg/L

Given that the lowest EC50 value available, being 2.3 mg/L, is > 1 mg/L, the substance should not be classified for acute aquatic hazard.

Chronic aquatic hazard:

For chronic aquatic classification, Table 4.1.0 (b) (iii) was used. The available data are:

Algae: 72h-ErC50 = 9.5 mg/L

Daphnia: 48h-EC50 = 2.3 mg/L

Substance is not readily biodegradable

Given that the lowest EC50 value available, being 2.3 mg/L, is > 1 mg/L but < 10 mg/L and that the substance is not readily biodegradable, the resulting classification is chronic category 2.

Final classification:

long-term aquatic hazard, chronic category 2