Comparison of Sedimentary
PAHs in the Rivers of Ammer
(Germany) and Liangtan (China): Differences between Early- and Newly-Industrialized
Countries
Posted on 2013-01-15 - 00:00
As a proxy to trace the impact of anthropogenic activity,
sedimentary
polycyclic aromatic hydrocarbons (PAHs) are compared between the early
industrialized and newly industrialized countries of Germany and China,
respectively. Surface sediment samples in the Ammer River of Germany
and the Liangtan River of China were collected to compare concentration
levels, distribution patterns, and diagnostic plots of sedimentary
PAHs. Total concentrations of 16 PAHs in Ammer sediments were significantly
higher by a factor of ∼4.5 than those in Liangtan. This contrast
agrees with an extensive literature survey of PAH levels found in
Chinese versus European sediments. Distribution patterns of PAHs were
similar across sites in the Ammer River, whereas they were highly
varied in the Liangtan River. Pyrogenic sources dominated in both
cases. Strong correlations of the sum of 16 PAHs and PAH groups with
TOC contents in the Liangtan River may indicate coemission of PAHs
and TOC. Poor correlations of PAHs with TOC in the Ammer River indicate
that other factors exert stronger influences. Sedimentary PAHs in
the Ammer River are primarily attributed to input of diffuse sources
or legacy pollution, while sediments in the Liangtan River are probably
affected by ongoing point source emissions. Providing further evidence
of a more prolonged anthropogenic influence are the elevated black
carbon fractions in sedimentary TOC in the Ammer compared to the Liangtan.
This implies that the Liangtan River, like others in newly industrialized
regions, still has a chance to avoid legacy pollution of sediment
which is widespread in the Ammer River and other European waterways.
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Liu, Ying; Beckingham, Barbara; Ruegner, Hermann; Li, Zhe; Ma, Limin; Schwientek, Marc; et al. (2016). Comparison of Sedimentary
PAHs in the Rivers of Ammer
(Germany) and Liangtan (China): Differences between Early- and Newly-Industrialized
Countries. ACS Publications. Collection. https://doi.org/10.1021/es3031566
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AUTHORS (9)
YL
Ying Liu
BB
Barbara Beckingham
HR
Hermann Ruegner
ZL
Zhe Li
LM
Limin Ma
MS
Marc Schwientek
HX
Huan Xie
JZ
Jianfu Zhao
PG
Peter Grathwohl