m-Cresol - ipcs inchem

OECD SIDS
m-CRESOL
3. ENVIRONMENTAL FATE AND PATHWAYS ID: 108-39-4
DATE: 24.05.2004
Initial test substance concentration: 100 mg/l
Duration of the test: 20-40 days
Test conditions
- Composition of synthetic medium: OECD
- Test temperature: 25 degrees C
Reference substance: aniline 100 mg/l
Reliability : (2) valid with restrictions
study comparable to OECD Guideline 301 C
Flag : Critical study for SIDS endpoint
11.05.2004 (34)
Type : aerobic
Inoculum : activated sludge, industrial
Contact time :
Degradation : 96 (±) % after 10 day(s)
Result :
Deg. product :
Method : OECD Guide-line 302 B "Inherent biodegradability: Modified Zahn-Wellens
Test"
Year : 1990
GLP : no data
Test substance : other TS: m-cresol, no purity reported
Result : 90% degradation during the log-phase (8 days)
Test condition : Test substance conc. 50-400 mg/l DOC, 200-1000 mg/l COD
acclimatization phase 2 days
Reliability : (2) valid with restrictions
Guideline study; basic data given
Flag : Critical study for SIDS endpoint
24.05.2004 (35)
Type : aerobic
Inoculum : activated sludge, adapted
Concentration : 200 mg/l related to COD (Chemical Oxygen Demand)
related to
Contact time :
Degradation : 95.5 (±) % after 5 day(s)
Result :
Deg. product :
Method : other: batch system (similar to OECD 302B "Zahn-Wellens Test")
Year : 1976
GLP : no
Test substance : other TS: m-cresol, no purity reported
Method : - Test compound was sole source of carbon
- Inoculum density: 100 mg dry matter/l; gradual increase of TS
concentration during 20 days adaptation period
- With volatile substances a test without inocculum was done to
differentiate the actual biological degradation from the losses due to mere
volatilization
Result : Initial degradation rate: 55.0 mg COD/g/h
Test condition : 20 +- 3 degrees C; pH 7.2; mineral salts medium; dark; continuously stirred
Reliability : (2) valid with restrictions
Test procedure comparable to standard method and in
accordance with generally accepted scientific standards;
basic data given
Flag : Critical study for SIDS endpoint
24.05.2004 (36)
Type : anaerobic
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