Tracing mercury pathways in Augusta Bay (southern Italy) by total concentration and isotope determination

被引：51

作者：

Bonsignore, M. ^{[1
]}

Tamburrino, S. ^{[1
]}

Oliveri, E. ^{[1
]}

Marchetti, A. ^{[2
]}

Durante, C. ^{[2
]}

Berni, A. ^{[2
]}

Quinci, E. ^{[1
]}

Sprovieri, M. ^{[1
]}

机构：

[1] CNR, Inst Coastal & Marine Environm IAMC, I-91021 Campobello Di Mazara, TP, Italy

[2] Univ Modena & Reggio Emilia, Dept Chem & Geol Sci, I-41125 Modena, Italy

来源：

ENVIRONMENTAL POLLUTION | 2015年 / 205卷

关键词：

Environmental pollution; Mercury isotope ratios; MC-ICP/MS; MASS-INDEPENDENT FRACTIONATION; STABLE-ISOTOPES; DEPENDENT FRACTIONATION; METHYLMERCURY; HG; BIOACCUMULATION; EXPOSURE; DEGRADATION; SIGNATURES; REDUCTION;

D O I：

10.1016/j.envpol.2015.05.033

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The mercury (Hg) pollution of sediments is the main carrier of Hg for the biota and, subsequently, for the local fish consumers in Augusta Bay area (SE Sicily, Italy), a coastal marine system affected by relevant sewage from an important chlor-alkali factory. This relationship was revealed by the determination of Mass Dependent (MDF) and Mass Independent Fractionation (MIF) of Hg isotopes in sediment, fish and human hair samples. Sediments showed MDF but no MIF, while fish showed MIF, possibly due to photochemical reduction in the water column and depending on the feeding habitat of the species. Benthic and demersal fish exhibited MDF similar to that of sediments in which anthropogenic Hg was deposited, while pelagic organisms evidenced higher MDF and MIF due to photoreduction. Human hair showed high values of delta Hg-202 (offset of +2.2 parts per thousand with respect to the consumed fish) and Delta Hg-199, both associated to fish consumption. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：178 / 185

页数：8

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