Appendix D - Dossier (PDF) - Tera

date: 20–JUL–2005
3. Environmental Fate and Pathways Substance ID: 71–43–2
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second were positive (mean 4 µg/l) and four of the 16 in the
third were positive (0.95 µg/l maximum). The US Groundwater
Supply Survey in 1982 looked at 466 samples of finished
drinking water taken randomly from the 1000 samples in the
survey. Benzene was detected in 0.6%; the median level
being 3 µg/l and maximum being 15 µg/l. Of 1174 community
and 617 private drinking water wells in Wisconsin tested in
June 1984, benzene was detected in 0.34 and 2.9%
respectively.
Source: BP Chemicals Ltd LONDON;
German Rapporteur
16–MAR–2004 (141) (223) (248) (530) (549) (643) (842) (1191)
Type of measurement: background concentration
Medium: biota
Result: Measurements were made of oysters and clams collected in May
and June 1980 from Lake Pontchartrain, Louisiana. In one
sample of oysters (Crassostrea virginica) benzene was found
at a level of 220 µg/kg (wet weight) and in clams (Rangia
cuneata) at 260 µg/kg (wet weight). In a second sample of
clams collected from the same area, benzene could not be
detected however, the detection limits were not reported.
Source: BP Chemicals Ltd LONDON
German Rapporteur
Flag: Risk Assessment
16–MAR–2004 (355) (827)
Type of measurement: background concentration
Medium: biota
Remark: Two species of macroalgae, Ulva lactuca and Hypnea
musciformis (seaweeds) were grown in tanks using circulating
seawater. Benzene was detected in the algae at 20 µg/kg
(dry weight).
Source: BP Chemicals Ltd LONDON
German Rapporteur
16–MAR–2004 (1249)
Type of measurement: background concentration
Medium: biota
Remark: Marine fish and invertebrate samples were collected 6 km
from the outfall from the Los Angeles County wastewater
treatment plant. Benzene was present at levels ranging from