A mixture of: 2-ethylhexyl mono-D-glucopyranoside; 2-ethylhexyl di-D-glucopyranoside

Toxicity to terrestrial arthropods

Administrative data

Endpoint:

toxicity to terrestrial arthropods: long-term

Data waiving:

study scientifically not necessary / other information available

Justification for data waiving:

the study does not need to be conducted because direct and indirect exposure of the soil compartment is unlikely

Justification for type of information:

3 short-term aquatic toxicity data on 3 different trophic levels (fishes, daphnia, algae) and one long-term aquatic data on daphnia are available. The results obtained identify the daphnia as the most sensitive species (NOEC = 18.2 mg/l) but the result do not indicate a very toxicity for aquatic species of the susbtance. In addition, the substance has a low log Kow (1.1) and is readily biodegradable. The terrestrial species tested should cover three taxonomic groups (plants, invertebrates and micro-organisms) as defined in Annex IX, but also different pathways of exposure (e.g. feeding, surface contact).
Earthworm testing allows potential uptake via each of surface contact, soil particle ingestion and porewater. No effect of the test item on the reproduction of earthworms up to 800 mg/kg soil dw (highest dose tested) was observed. The screening assessment do not demonstrate the need for further studies (according to the Table R.7.11-2 in the Chapter R.7.c, version 2.0 - November 2014). So terrestrial arthropods testing is not necessary.