m-Cresol - ipcs inchem

OECD SIDS
p-CRESOL
3. ENVIRONMENTAL FATE AND PATHWAYS ID: 106-44-5
DATE: 24.05.2004
Test substance : other TS: p-cresol, purity not noted
Deg. products : 74-82-8 200-812-7 methane
Remark : sensitivity of acid formers and methanogenic consortia examined
Result : Mineralization occurred after 15 days at a concentration of
100 ppm p-cresol. Duration of mineralization increased to 39 days at a
concentration of 400 ppm p-cresol.
Test condition : TS concentrations: 200, 400, and 1000 mg/l
incubation for 6 weeks at 37 degrees C
Reliability : (4) not assignable
No standard test procedure, but in accordance with generally accepted
scientific standards, not relevant for purpose of HPV program
24.05.2004 (55)
Type : aerobic
Inoculum : other: acclimated mixed microbial culture
Concentration : .4 mg/l related to Test substance
3.2 mg/l related to Test substance
Contact time : 20 day(s)
Degradation : (±) % after
Result :
Deg. product :
Method : other: APHA 1980
Year : 1987
GLP : no
Test substance : other TS: p-cresol, no purity reported
Result : BOD (5 days) = 5.63 mmol O2/mmol TS
ThBOD = 8.50 mmol O2/mmol TS
Test condition : 21 +- 3 degrees C
Reliability : (4) not assignable
Documention insufficient for assessment
24.05.2004 (56)
Type : aerobic
Inoculum : other bacteria: Aufwuchs communitiy
Deg. product : not measured
Method :
Year : 1987
GLP : no
Test substance : other TS: p-cresol, purity at least 99 %
Method : Estimation of biotransformation kinetics in natural waters.
Aufwuchs colonized for 5 months on Teflon strips at 2 rivers and 2 ponds.
Strips were returned to laboratory, and
fastened into a beaker containing autoclaved natural water.
Beakers spiked with 100 and 200 µg/l test substance at 20
degrees C. TS detected by HPLC.
Result : A great variability for the k values (for individual sample
sites between -5.1 and -3388 h-1) was found. Mean values for the sites:
pond 1: k = -273.1 h-1
pond 2: k = -95.5 h-1
river 1: k = -1637.1 h-1
river 2: k = -70 h-1
Reliability : (2) valid with restrictions
No standard test procedure, but in accordance with generally
accepted scientific standards and described in sufficient
detail
11.05.2004 (57)
Type : aerobic
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