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Fig. 5
Mixed PAH profiles. (
a
) hot patch (paving material), (
b
) modern (2005) roadway paving,
(
c
,
d
) older types of roadway paving, (
e
) coal tar oil.
NA
: not analyzed. See Table
1
for PAH abbre-
viations. Adapted from Douglas et al. (
2007a
), with permission, © Elsevier Academic Press
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