m-Cresol - ipcs inchem

OECD SIDS
m- / p-CRESOL MIXTURE
3. ENVIRONMENTAL FATE AND PATHWAYS ID: 15831-10-4
DATE: 24.05.2004
Method : Bench-scale experiments with contaminated soil.
Determination of passive evaporation and biodegradation of
cresols
Result : passive evaporation half-life 4.2 - 4.8 weeks
biodegradation: after 4 days below detection limit
Test condition : Passive evaporation: plastic petri plates (88x18 mm) placed
on canopy-covered table. Temp. 10-17 degrees C, humidity 75%
Shake-flask biodegradation test: 8-25 g soil mixed with 50
ml buffer solution; shaken for 4 days
Reliability : (3) invalid
Methodological deficiencies
11.02.2003 (16)
Type : laboratory
Radiolabel : yes
Concentration :
Soil temperature : °C
Soil humidity :
Soil classification :
Year :
Deg. product :
Method : other: see Method below
Year : 1985
GLP : no
Test substance : other TS: m-cresol
Method : Inocolum: subsurface microbial community of a pristine
aquifer (Lula, Okla.)
Soil: aquifer solid sample, unconsilated sand, from a depth
of 4.5-5.6 m below surface
All substances were radiolabeled.
Incubation period: 8 months
Determination of mineralization via 14CO2 evolution
Remark : The highest percent biodegradation achieved for nearly all
the substances tested was 35% (e.g. anilin, which is the
standard reference substance for all ready tests in OECD 301
achieved after 100 days only 15% biodegradation).
Result : - After 160 days and at a concentration of 39 ng/g m-cresol
in soil, ca.15% mineralization was observed.
- The percent mineralized increased slowly and linearly with
time.
- For the majority of the test compounds no adaptation
period was observed.
Reliability : (3) invalid
No standard test procedure. Test design can only be used to
assess degradation in soil of the pristine aquifer of Lula,
Okla.
11.02.2003 (17)
3.2.1 MONITORING DATA
Type of measurement : other: contamination at a special working place
Media :
Concentration :
Method :
Remark : Combined m-/p-cresol isomers were detected among other
chemicals in the indoor air at a shale oil wastewater
facility at a concentration of 5.1 ppb.
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