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Appendix D - Dossier (PDF) - Tera

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date: 20–JUL–2005<br />

3. Environmental Fate and Pathways Substance ID: 71–43–2<br />

______________________________________________________________________________<br />

Type: anaerobic<br />

Inoculum: other<br />

Concentration: 1 mg/l related to Test substance<br />

Degradation: = 0 % after 96 day(s)<br />

Method: other<br />

GLP: no data<br />

Test substance: no data<br />

Method: Removal of benzene in groundwater samples from Gainesville,<br />

Florida (raw water intake of a water treatment plant).<br />

Batch culture experiments according to Bouwer et al.,<br />

Environ. Sci. Technol. 15, 596–599. Elimination of test<br />

substance monitored by GC–MS. Sterile control.<br />

Remark: No standard test procedure, but in accordance with generally<br />

accepted scientific methods and described in sufficient<br />

detail.<br />

Removal determined.<br />

Result: No removal during incubation; test terminated after 96 days.<br />

Source: Deutsche Shell Chemie GmbH Eschborn<br />

German Rapporteur<br />

Test condition: Incubation at 20 degree C in the dark; pH 5.3<br />

Reliability: (2) valid with restrictions<br />

Flag: Risk Assessment<br />

02–SEP–2003 (292)<br />

Type: anaerobic<br />

Inoculum: other<br />

Concentration: 1 µg/l related to Test substance<br />

Degradation: = 5 % after 7 day(s)<br />

Result: other<br />

Method: other<br />

Year: 1990<br />

GLP: no data<br />

Test substance: no data<br />

Method: The mineralization of 14C–labelled benzene was followed in a<br />

methanogenic sediment microcosm originating from a Dutch<br />

river; measurement of 14CO2.<br />

Remark: No standard test procedure, but in accordance with generally<br />

accepted scientific methods and described in sufficient<br />

detail.<br />

Result: Total removal of test substance after 7 days was 57–63%<br />

Incubation for 63 days did not result in higher removal or<br />

further mineralization. Sorption to stoppers or the sediment<br />

or formation of intermediates were thought to account for<br />

most of the removal. Tests with an initial benzene<br />

concentration of 100 ug/l had similar results.<br />

Source: Deutsche Shell Chemie GmbH Eschborn<br />

German Rapporteur<br />

Test condition: Incubation at 20 degree C;<br />

Sediment characteristics: pH 7.5; 5% organic carbon; 0.42%<br />

nitrogen; 0.21% phosphorus; 11% CACO3.<br />

Reliability: (2) valid with restrictions<br />

Flag: Risk Assessment<br />

02–SEP–2003 (1199)<br />

<strong>Appendix</strong> D: Benzene SIDS <strong>Dossier</strong><br />

– 212/957 –

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