Appendix D - Dossier (PDF) - Tera

date: 20–JUL–2005
3. Environmental Fate and Pathways Substance ID: 71–43–2
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Type of measurement: other: comparison of polluted and background sites
Medium: biota
Method: Needles of pine trees were collected, sent in air–tight
vessels to the laboratory and analysed by extraction with
dichloromethane and GC–MSD.
Remark: Air samples and pine tree needle samples were collected in
parallel in order to assess the possibility of monitoring
pine needles in terms of air pollution.
Result: In all needle samples, the benzene concentration was at or
below the detection limit of about 40 µg/kg dw.
Source: German Rapporteur
Test condition: Sampling took place from August 1994 to August 1995 in 3
different countries along a busy road, near a petrol station
and in a rural site simultaneously within 2 weeks of 4
consecutive seasons. In each sampling period, needle samples
from 5 different pine trees per sampling site were taken, i.
e. in all 20 needle samples per sampling site.
16–MAR–2004 (614)
Type of measurement: other: comparison of polluted areas within a city with a
non polluted area
Medium: air
Method: Air was passed through magnesium perchlorate and alkali
asbestos to absorb water vapour and carbon dioxide and then
through a polymer bead cooled by liquid nitrogen to absorb
volatile organic compounds. The organic compounds were
desorbed, kryofocussed, and analysed by capillary–GC–MS and
capillary–GC–FID.
Remark: Seasonal variations were reported in terms of total VOC
immission concentrations. Maximum immission concentrations
were measured in January or November, and minimum immission
concentrations in May.
Result: Average concentrations were reported for each of the 5
sampling sites
mean / standard deviation / range; µg/m**3):
A (roadside): 38.5 /29.1 /18.2
–134.6
B (downtown): 43.8 /20.1 /23.4
–103.9
C (industrial area): 22.3 / 9.1 / 5.7 –
53.5
D (residential area): 20.6 / 8.7 / 7.7 –
47.7
E (reference area outside Changchun): 9.4 / 6.0 / 2.9 –
27.5
As a comparison, data from other city centers were reported
(ppbV / µg/m**3):
Grenoble (May 1995): 0.5 – 3.0 / 1.6 – 9.7
Bangkok (1995): 5.6 / 18.1
Manila (1995): 3.9 / 12.6
Source: German Rapporteur
Test condition: Monitoring took place in 4 places within the town of
Changchun in North–East china and one place south–east of
Changchung from September 1997 to July 1998. Sampling took
Appendix D: Benzene SIDS Dossier
– 163/957 –