m-Cresol - ipcs inchem

OECD SIDS
p-CRESOL
3. ENVIRONMENTAL FATE AND PATHWAYS ID: 106-44-5
DATE: 24.05.2004
Deg. product : yes
Method :
Year : 1988
GLP : no
Test substance : other TS: p-cresol, of highest purity available (obtained from Aldrich
Chemical Co.)
Deg. products : 74-82-8 200-812-7 methane
Method : primary anaerobic digesting sludge receiving a mixture of
domestic and industrial waste water
Result : lag time 7 days
net total gas production was 96 +/- 4.3 % of the theoretical production
(CH4 + CO2)
Test condition : - medium 2-3 g dw/l sludge
- incubation for >= 60 d at 35 degrees C
- 3 replicates
- sterile controls for abiotic gas production
- gas production measured with hand-held pressure meter
Reliability : (2) valid with restrictions
Study in accordance with generally accepted scientific
standards and described in sufficient detail
Flag : Critical study for SIDS endpoint
07.05.2004 (47) (48)
Type : aerobic
Inoculum : aerobic microorganisms
Contact time : 120 hour(s)
Degradation : (±) % after
Result :
Kinetic of testsubst. : 40 hour(s) ca. 50 %
70 hour(s) ca. 90 %
%
%
%
Deg. product : not measured
Method :
Year : 1982
GLP : no
Test substance : other TS: p-cresol, ring-U-14C-labelled
Method : Adaptation of natural microbial communities was measured in
ecocore test systems filled with sediment and natural water
collected at a river.
Parent compound disappearance and mineralization were
monitored.
Remark : degradation values taken from a graphics
Result : Mineralization was rapid without a lag-phase. Pre-exposure
did not accelerate degradation.
Reliability : (2) valid with restrictions
No standard test procedure, but in accordance with generally
accepted scientific standards and described in sufficient
detail
24.05.2004 (49)
Type : aerobic
Inoculum : other: marine bacteria
Deg. product : not measured
Method : other: batch culture study in seawater
Year : 1992
GLP : no
Test substance : other TS: p-cresol, purity >98%
208
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