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Ecotoxicological information

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Description of key information

SOLVENT N1 was tested in an Algae Growth Inhibition test conducted according to OECD 201 and a Daphnia magna Acute Immobilization test conducted according to OECD 202. The results do not support the classification for Aquatic Toxicity according to the EU GHS criteria.

Additional information

An Algae Growth Inhibition test conducted according to OECD 201 and a Daphnia magna Acute Immobilization test conducted according to OECD 202 were performed. Both the studies were GLP compliant.

Due to the high volatility of SOLVENT N1 from water, specific measures for avoiding volatilisation were applied during all the phases of the experimental work. In spite of this a certain decrease in analytical concentrations was observed during the exposure period in both the studies. Such decrease was more evident in the Algae test (observed decreases ranged between 40% to 93% of the initial concentrations) than in the Daphnia magna test (observed decreases from 0 to 35% of the initial concentrations).

In the Algae Growth Inhibition test the %-inhibition seen for the parameter growth rate was <2% and the %-inhibition seen for the parameter yield was <10%. Therefore, the EC10, EC20 and the EC50 were higher than the highest tested concentration level. Due to the lack of biologically sisgnificant effects the NOEC was established at the highest tested concentration level (100% of a saturated solution at a loading rate of 100 mg/L, corresponding to 0.134 mg/L given as geometric mean of measured concentrations at the beginning and at the end of the test).

In the Daphnia magna acute toxicity test, immobilization of 15% was observed after 48h at the highest concentration.TheEC50(48 h) was therefore higher than the highest tested concentration (100% ofa saturated solution at a loading rate of 100 mg test item/L, corresponding to 4.40 mg test item/L given as geometric mean of measured concentrations at the beginning and at the end of the test).

Basing on these results SOLVENT N1 does not fulfill the classification criteria for aquatic toxicity according to EU GHS criteria.