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Ecotoxicological information

Toxicity to microorganisms

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Reference
Endpoint:
toxicity to microorganisms
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Guideline study
Qualifier:
according to
Guideline:
ISO 8192 (Water quality - Test for inhibition of oxygen consumption by activated sludge for carbonaceous and ammonium oxidation)
GLP compliance:
no
Analytical monitoring:
no
Test organisms (species):
activated sludge, domestic
Test type:
static
Water media type:
freshwater
Duration:
30 min
Dose descriptor:
EC0
Effect conc.:
>= 1 000 mg/L
Duration:
30 min
Dose descriptor:
EC10
Effect conc.:
> 1 000 mg/L
Details on results:
At 1000 mg/l stimulation of the respiration (10%) was observed.

Description of key information

The inhibition of the degradation activity of activated sludge on sodium prop-2-enesulphonate is not anticipated when introduced in appropriate low concentrations.

Key value for chemical safety assessment

Additional information

A short term respiration inhibition test conducted, in accordance with ISO 8192 [BASF AG, 1989]. After incubation of 30 minutes no respiration inhibition observed up to the highest test concentration of 1000 mg/L sodium prop-2-enesulphonate.