Dipropylene glycol (SIDS)
Dipropylene glycol (SIDS)
Dipropylene glycol (SIDS)
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OECD <strong>SIDS</strong> PROPYLENE GLYCOL<br />
3. Environmental Fate and Pathways<br />
Id 25265-71-8<br />
Date 30.05.2001<br />
Deg. Product :<br />
Method : Directive 87/302/EEC, part C, p. 99 "Biodegradation: Zahn-Wellens test"<br />
Year : 1989<br />
GLP : no data<br />
Test substance : no data<br />
Method : Flasks containing test solution shaken continuously during the study<br />
period. Carbon dioxide production measured at intervals during the test.<br />
No additional study details given. Extent of pre-adaptation of bacteria not<br />
given.<br />
Remark : Original reference not available for review, so methods and results were<br />
described based on a reputable secondary source.<br />
Result : Following pre-adaptation of bacteria, significant degradation of the test<br />
substance was observed during the study.<br />
Source : Lyondell Chemical Co. Houston, Texas<br />
Conclusion : >70% degradation after 28 days<br />
Reliability : (2) valid with restrictions<br />
Details on the test procedure and study results are not provided. Details<br />
on the results of analytical measurement of test substance concentrations<br />
in the test solutions and sample purity is not provided.<br />
Flag : Critical study for <strong>SIDS</strong> endpoint<br />
23.05.2001 (2)<br />
Type : aerobic<br />
Inoculum : activated sludge<br />
Deg. Product :<br />
Method : OECD Guide-line 301 C "Ready Biodegradability: Modified MITI Test (I)"<br />
Year : 1992<br />
GLP : no data<br />
Test substance : no data<br />
Method : Concentration: 30 mg/l substance and 100 mg/l sludge.<br />
Initial inoculation of 30 mg/l test substance to each flask. Respirometer<br />
used to evaluate test substance degradation. No agitation of exposure<br />
solutions during the study period. Carbon dioxide production measured<br />
continuously during the test. No additional study details given.<br />
Remark : Original reference not available for review, so methods and results were<br />
described based on a reputable secondary source.<br />
Result : no measurable degradation during the study period<br />
Source : Lyondell Chemical Co. Houston, Texas<br />
Conclusion : no degradation<br />
Reliability : (2) valid with restrictions<br />
Details on the test procedure and study results are not provided. Details<br />
on the results of analytical measurement of test substance concentrations<br />
in the test solutions and sample purity is not provided.<br />
Flag : Critical study for <strong>SIDS</strong> endpoint<br />
23.05.2001 (28)<br />
3.6 BOD5, COD OR BOD5/COD RATIO<br />
BOD5<br />
Method : other: APHA Standard Methods, Number 219<br />
Year : 1979<br />
GLP : no<br />
Concentration : related to<br />
BOD5 : = 92 mgO2/l<br />
COD<br />
Method :<br />
Year :<br />
GLP :<br />
58<br />
UNEP PUBLICATIONS
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