Distribution of Mercury and Other Heavy Metals in Core Sediments of the Northern Adriatic Sea

被引：0
|
作者：
Daniele Fabbri
Giovanni Gabbianelli
Clinio Locatelli
Debora Lubrano
Claudio Trombini
Ivano Vassura
机构：
[1] Universitá di Bologna,Laboratorio di Chimica Ambientale, Scienze Ambientali
[2] Universitá di Bologna,Laboratorio di Oceanografia, Scienze Ambientali
来源：
Water, Air, and Soil Pollution | 2001年 / 129卷
关键词：
adriatic sea; mercury; metals; sediment;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Seven sediment cores were collected along a transect about20 km off from the mouth of the Po River, in the northernAdriatic Sea (Italy). Cores were characterised by differentdepositional sequences associated with late Pleistocene-Holocene lowstand (LST), transgressive (TST) and highstand (HST) system tracts. Sediment samples were analysed for mercury, copper, nickel, chromium, manganese and iron, aswell as for total organic matter. Metal distributiongenerally showed vertical and spatial variability ascribed tograin size effects with no significant anthropogenicperturbation. Conversely, mercury showed vertical profilescharacterised by surface enrichment, with concentrations inthe upper layer (50–230 ng g-1) exceeding 3–11 times the background value of 20 ng g-1 determined in bottomcores. Surface maxima were attributed to anthropogenic mercurydelivered mainly by the Po River.
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页码：143 / 153
页数：10
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