m-Cresol - ipcs inchem

OECD SIDS
m-CRESOL
4. ECOTOXICITY ID: 108-39-4
DATE: 24.05.2004
GLP : no
Test substance : other TS: m-cresol, no purity reported
Method : described in: Denson & Bold, The University of Texas
Publication No. 6022, 72 (1960)
Remark : MTL = median tolerance limit
Result : sublethal concentration 100 mg/l
lethal concentration 500 mg/l
Reliability : (4) not assignable
Insufficient documentation
12.05.2004 (78)
4.4 TOXICITY TO MICROORGANISMS E.G. BACTERIA
Type : aquatic
Species : activated sludge, domestic
Exposure period : 3 hour(s)
Unit : mg/l
EC50 : 461.4
Analytical monitoring : no
Method : OECD Guide-line 209 "Activated Sludge, Respiration Inhibition Test"
Year : 1985
GLP : no
Test substance : other TS: m-cresol, reagent grade
Remark : synthetic sewage stock solution slightly different from OECD
guideline; reference substance 1,5-dichlorophenol
Test condition : 21 degrees C; continuous aeration with 0.5-10 l/min
Reliability : (1) valid without restriction
Guideline study
Flag : Critical study for SIDS endpoint
07.05.2004 (79)
Type : aquatic
Species : activated sludge of a predominantly domestic sewage
Exposure period :
Unit : mg/l
EC75 : 11.4
Analytical monitoring : no
Method : other: inhibition of nitrification process
Year : 1966
GLP : no
Test substance : other TS: m-cresol, no purity reported
Method : Quantitative determination of the nitrification rate (1st
step, NH4 to NO2),
colorimetric measurement of the NO2/NO3 concentration;
static test system
Pre-cleaned activated sludge in particle-free communal waste
water (BOD5: 250 mg/l; NH4-N/l: 50-80 mg)
Remark : effect: inhibition of ammonia oxidation
Test condition : Exposure period: 2-4 h; 25 degree C; pH 7.6-7.8
Reliability : (2) valid with restrictions
Test procedure comparable to standard method and in
accordance with generally accepted scientific standards;
sufficient documentation
Flag : Critical study for SIDS endpoint
07.05.2004 (80)
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