m-Cresol - ipcs inchem

OECD SIDS
p-CRESOL
3. ENVIRONMENTAL FATE AND PATHWAYS ID: 106-44-5
DATE: 24.05.2004
3.1.1 PHOTODEGRADATION
Type : air
Light source :
Light spectrum : nm
Relative intensity : based on intensity of sunlight
INDIRECT PHOTOLYSIS
Sensitizer : OH
Conc. of sensitizer : 500000 molecule/cm³
Rate constant : .0000000000873 cm³/(molecule*sec)
Degradation : 50 % after 8.2 hour(s)
Deg. product :
Method : other (calculated): with SRC-AOPWIN, v1.90
Year : 2003
GLP :
Test substance :
Remark : The calculated half-life is based on a mean OH radical concentration of
0.5E+6 OH radicals/cm3 given during the 24 hours/day as suggested in the
EU-Technical Guidance Document
Reliability : (2) valid with restrictions
Generally accepted calculation method
Flag : Critical study for SIDS endpoint
10.05.2004 (20)
Type : air
Light source :
Light spectrum : nm
Relative intensity : based on intensity of sunlight
Deg. product :
Method : other (measured)
Year : 1995
GLP : no data
Test substance : other TS: p-cresol, purity > 99 %
Method : Determination of the temperature-dependency of the OH
radical reaction under simulated tropospheric conditions
Remark : With a OH radical concentration of 1 000 000 molec cm-3 and
a temperature of 301 K, the half-life is 3.8 h
Result : kOH = 2.21 x 10E-12 exp[(943+-449)/T] cm3 molec.-1 s-1 for a
temperature range of 301-373 K
Test condition : test substance concentration 0.05-5 ppm
reference compound (1,3-butadiene or o-cresol) 0.05-2.3 ppm
radical source methylnitrite 1.5-11 ppm together with NOx
2-70 ppm
Reliability : (1) valid without restriction
Test procedure in accordance with generally accepted
scientific standards; detailed documentation of test
procedure and test conditions
Flag : Critical study for SIDS endpoint
12.05.2004 (21)
Type : air
Light source :
Light spectrum : nm
Relative intensity : based on intensity of sunlight
Deg. product :
Method : other (measured): critical review
Year : 1994
UNEP PUBLICATIONS 197