m-Cresol - ipcs inchem

OECD SIDS
p-CRESOL
3. ENVIRONMENTAL FATE AND PATHWAYS ID: 106-44-5
DATE: 24.05.2004
Concentration : 54 mg/l related to Test substance
related to
Deg. product : yes
Method :
Year : 1989
GLP : no
Test substance : other TS: p-cresol, no purity reported
Deg. products : 74-82-8 200-812-7 methane
Method : black anoxic mud collected from a river inoculated in a
mineral medium (10% w/v)
Result : non-acclimated consortia: turnover rate 3.00 µmol/day/g
sediment dw (lag-phase 12 d)
acclimated consortia: turnover rate 6.00 µmol/day/g sediment dw (lagphase
0 d, based on a 24 days incubation period), the CH4 production was
97% of the theoretically possible yield
Test condition : incubation at 28 degrees C in the dark
cultures were refed with 60 mg/l test substance every 2-4 w
for a total of 18 months
Reliability : (2) valid with restrictions
Study in accordance with generally accepted scientific
standards and described in sufficient detail
07.05.2004 (69)
Type : anaerobic
Inoculum : other: unacclimated sediments
Concentration : 1 mmol/l related to Test substance
related to
Contact time :
Degradation : 100 (±) % after 30 day(s)
Result :
Deg. product : yes
Method :
Year : 1990
GLP : no
Test substance : other TS: p-cresol, no purity reported (obtained from Aldrich)
Deg. products : 123-08-0 204-599-1 4-hydroxybenzaldehyde
65-85-0 200-618-2 benzoic acid
74-82-8 200-812-7 methane
99-96-7 202-804-9 4-hydroxybenzoic acid
Method : Sediment samples from a freshwater pond; degradation tested
under three reducing conditions: denitrifying, sulfidogenic, and
methanogenic
Result : TS was completely utilized within 21 to 30 days in unacclimated sediment.
p-Cresol degradation proceeded through p-hydroxybenzaldehyde and p-
hydroxybenzoate under methanogenic and denitrifying conditions. Under
methanogenic conditions, also dehydroxylation to benzoic acid took place
Test condition : 30 degrees C in the dark
Reliability : (2) valid with restrictions
No standard test procedure, but in accordance with generally accepted
scientific standards and described in sufficient detail
07.05.2004 (70)
Type : anaerobic
Inoculum : other: acclimated sediments
Concentration : 1 mmol/l related to Test substance
related to
Contact time :
Degradation : 100 (±) % after 10 day(s)
Result :
UNEP PUBLICATIONS 217