Registration Dossier

Ecotoxicological information

Endpoint summary

Administrative data

Description of key information

Additional information

Valid aquatic toxicity tests for fish, aquatic invertebrates and algae are available for Vinasses, residue from fermentation and are read-across among the category members.

 

Type of test

Species

Effect

Effect conc. (mg/L)

Reference

Acute

Cyprinus carpio

Mortality

LC50(96h)

> 58 * (measured)
> 100 * (nominal)

Bouwman, 2010a

Acute

Pseudokirchneriella subcapitata

Growth

EC50(72h)

> 56 * (measured)
> 100 * (nominal)

Bouwman, 2010c

Chronic

Pseudokirchneriella subcapitata

Growth

NOEC(72h)

56 * (measured)
100 * (nominal)

Bouwman, 2010c

Chronic

Daphnia magna

Parental mortality

NOEC(21d)

23 (measured)
56 (nominal)

Bouwman, 2010b

 Chronic Daphnia magna   Reproduction  NOEC(21d)  42 * (measured)100 * (nominal)  Bouwman, 2010b

* no effect at highest test concentration

 

These results clearly indicate, that Vinasses, residue from fermentation are neither acute nor chronic toxic to aquatic organisms among all trophic levels. The lowest no observed effect concentration, obtained from results of a chronic test on Daphnia magna, was used for the derivation of PNECaquatic. 

Furthermore, a respiration inhibition test on activated sludge, using the same test substance resulted in an EC50(3h) > 100 mg/L, underlining the absence of harmful effects on the aquatic environment. 

Since the substance is readily biodegradable, a chronic exposure in the aquatic environment can be excluded. Together with the absence of any harmful or toxic effects on aquatic organisms, further testing on aquatic vertebrates is scientifically unjustified. 

This assessment applies to all category members, using the principle of read-across, as stated above.