Appendix D - Dossier (PDF) - Tera

date: 20–JUL–2005
3. Environmental Fate and Pathways Substance ID: 71–43–2
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Type: laboratory
Radiolabel: yes
Concentration: 20 mg/kg
Soil humidity: 7 g water/100g soil dry weight
Organ. carbon: 1.3 %
pH: 7.1
Method: other
Year: 1974
GLP: no data
Test substance: no data
Result: The levels of carbon dioxide released were found to be 7.5,
24, 37, 44 and 47% after 3 days and 1, 2, 5 and 10 weeks
respectively, showing degradation.
Source: BP Chemicals Ltd LONDON
Deutsche Shell Chemie GmbH Eschborn
German Rapporteur
Test condition: A base–rich, para–brownish, loess (clay) soil from
Flachstoeckheim near Braunschweig/FRG (100 g; 0.12%
nitrogen) was mixed with 2 mg 14C–labelled benzene dissolved
in 0.1 ml acetone, and moistened to 70% of the water
capacity. [10 ml water; 70% of water capacity (10 ml water
in 100 g soil implies 7% w/w)]. 14CO2 production was
measured over a period of 10 weeks.
Reliability: (2) valid with restrictions
Flag: Risk Assessment
15–MAR–2004 (466)
Type: other
Organ. carbon: = 1.3 %
Method: other
GLP: no data
Test substance: no data
Remark: If released to soil, benzene will be subject to rapid
volatilization near the surface. That which does not
evaporate will be highly to very highly mobile in soil and
may leach to groundwater. The effective half–lives for
volatilization from soil, without water evaporation, of
benzene uniformly distributed to 1 and 10 cm in soil with an
organic carbon content of 1.25%, were 7.2 and 38.4 days
respectively.
Source: BP Chemicals Ltd LONDON
German Rapporteur
Reliability: (4) not assignable
15–MAR–2004 (331) (589)
Appendix D: Benzene SIDS Dossier
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