Appendix D - Dossier (PDF) - Tera

date: 20–JUL–2005
3. Environmental Fate and Pathways Substance ID: 71–43–2
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June 1997: passive sampling: 10.7 – 22.4, mean: 14.3
(n = 80) active sampling: 2.2 – 22.2, mean: 6.7
March 1998: passive sampling: 23.0 – 31.4, mean: 25.6
(n = 30) active sampling: 5.6 – 31.6, mean: 24.7
Source: German Rapporteur
Test condition: Passive samplers were placed in the flats examined in the
height of the breathing zone (1,5 m above ground) for 4–5
weeks.
Flow rates for active sampling: 12 hour sampling: 20 l/min,
1 hour sampling: 80 l/min.
Two flat were examined:
1. Downtown, 30 year old, influenced by heavy road traffic.
2. Suburb, 1 year old, influenced by moderately heavy
traffic.
16–MAR–2004 (1304)
Type of measurement: concentration at contaminated site
Medium: air
Method: Duplicate samples were collected using passive canisters and
thermal desorption followed by GC–MSD (calibration by
external standard method).
Result: Benzene concentrations in µg/m**3.
Zefun tunnel, October 18, 1997:
10–11: 54.7; 11–12: 62.8; 12–13: 75.6; 13–14: 89.5; 14–15:
77.4; 15–16: 95.3; 16–17: 118.4.
Average: 82.0; relative standard deviation: 26.0%.
Lishin tunnel, January 24, 1998:
7–9: 31.9; 9–11: 202.1; 11–13: 93.1; 13–15: 37.8; 15–17:
120.8; 17–19: 36,4.
Average: 87.0; relative standard deviation: 77.0%.
Source: German Rapporteur
Test condition: Two road tunnels in the region of Taipei were investigated:
The Zefun tunnel, 200 m long, two–way. Sampling in 1–hour
intervals from 10.00 to 17.00.
The Lishin tunnel, 90 m long, two one–way lanes. Sampling in
2–hour intervals from 7.00 to 19.00.
16–MAR–2004 (533)
Type of measurement: concentration at contaminated site
Medium: ground water
Method: Purge and trap sample preparation (head space analysis) and
GLC–MS or capillary–GC–FID (only few details reported,
reference to earlier papers).
Result: Benzene concentrations in mg /l:
Average composition of waters from different oil production
platforms:
Brage: 4.5
Oseberg F: 4.6
Oseberg C: 3.7
Troll: 0.8
Appendix D: Benzene SIDS Dossier
Daily variations of benzene concentrations from one oil
production platform (Brage):
– 147/957 –