m-Cresol - ipcs inchem

OECD SIDS
p-CRESOL
4. ECOTOXICITY ID: 106-44-5
DATE: 24.05.2004
Unit : mg/l
EC50 : = 160
Analytical monitoring : No
Method :
Year : 1985
GLP : no data
Test substance : other TS: p-cresol; purity analytical grade
Method : The test was carried out under sterile conditions. T.
pyriformis was pre-cultured at 30 degree C for 24 hours.
The stock solution of chemical was added to the sterile
medium to provide a constant ratio of 1.8 in 10 ml of 2%
protose peptone. The solutions were then inoculated with
0.2 ml T. pyriformis and cultivated for 24 hours at 30
degree C without agitation. The number of cells were
counted manually under a microscope (repeated 3 times) and
with a Coulter Counter, Model Zb (repeated twice). Mean
values were recorded with each method. Correlation
coefficient between manual and Couter Counter was 0.998.
Reliability : (2) valid with restrictions
No standard test procedure, but in accordance with generally
accepted scientific standards and described in sufficient
detail
24.10.2001 (110)
Type : Aquatic
Species : other bacteria: Aerobic heterotrophs
Exposure period : 49 hour(s)
Unit : mg/l
IC50 : = 260
Analytical monitoring : No
Method :
Year : 1991
GLP : No
Test substance : other TS: p-cresol, no purity reported
Method : culture obtained from mixed liquor of a treatment plant
Remark : Effect: inhibition of respiration; prolonged incubation
compared with ISO 8192
Test condition : 25 and 35 degrees C
Reliability : (2) valid with restrictions
Study in accordance with generally accepted scientific
standards and described in sufficient detail
07.05.2004 (107)
Type : Aquatic
Species : other bacteria: Methanogenic bacteria
Exposure period : 96 hour(s)
Unit : mg/l
IC50 : = 91
Analytical monitoring : No
Method : other: Owen, W.F.: Bioassay for Monitoring Biochemical Methane Potential
and Anaerobic Toxicity. Water Res. 13, 485 (1979)
Year : 1991
GLP : No
Test substance : other TS: p-cresol, no purity reported
Remark : Effect: Inhibition of gas production (CH4 + CO2)
Test condition : 35 degrees C
Reliability : (2) valid with restrictions
Study in accordance with generally accepted scientific
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