The estuarine geochemical reactivity of Zn isotopes and its relevance for the biomonitoring of anthropogenic Zn and Cd contaminations from metallurgical activities: Example of the Gironde fluvial-estuarine system, France

Petit, Jérôme; Schäfer, Jörg; Coynel, Alexandra; Blanc, Guillaume; Chiffoleau, Jean-François; Auger, Dominique; Bossy, Cécile; Derriennic, Hervé; Mikolaczyk, Mathilde; Dutruch, Lionel; Mattielli, Nadine

doi:10.1016/j.gca.2015.08.004

Cited by 35 publications

(39 citation statements)

References 62 publications

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“…In the Gironde fluvial-estuarine system (France), the isotopic composition of suspended particulate matter (SPM) did not distinguish anthropogenic and natural sources, possibly due to onsite remediation of the contamination source and the mixture with natural Zn in the fluvial-estuarine continuum (Petit et al, 2015). In the dissolved phase, the large isotopic variation observed was attributed to adsorption processes in the estuary gradient and maximum turbidity zone (MTZ) (Petit et al, 2015). Therefore, the applicability of Zn as tracer of metallurgical sources in coastal areas remains not conclusive, requiring additional investigations.…”

Section: Accepted M Manuscriptmentioning

confidence: 99%

Tracing of anthropogenic zinc sources in coastal environments using stable isotope composition

et al. 2017

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The use of zinc isotopes to trace anthropogenic sources in coastal areas has been tested in this study. We determined the stable isotopic composition of zinc in sediment cores, suspended particulate matter (SPM) and rocks collected at the Sepetiba Bay (southeastern Brazil), an estuarine lagoon heavily impacted by metallurgic activities.These isotopic signatures were compared with those from willemite ore, which represent the main mineral refined by the major industrial source of zinc. The aim was to test if this tracer system enables to identify sources and sinks of anthropogenic zinc and to reconstruct the temporal and spatial evolution of zinc contamination. can be useful to improve environmental monitoring efforts in coastal systems.

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Section: Accepted M Manuscriptmentioning

confidence: 99%

Tracing of anthropogenic zinc sources in coastal environments using stable isotope composition

et al. 2017

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“…In surface environments, the relative abundance of these isotopes can change during several biogeochemical processes including weathering and pedogenesis (Bigalke et al, 2011;Fernandez and Borrok, 2009;Suhr et al, 2018;Vance et al, 2016), mineral precipitation/dissolution (Veeramani et al, 2015;Wall et al, 2011), adsorption on solid surfaces (Bryan et al, 2015;Dong and Wasylenki, 2016;Guinoiseau et al, 2016), ion-exchange (Maréchal and Albarède, 2002), cellular homeostasis (Caldelas et al, 2011;Wanty et al, 2017), redox reactions and ore refining (smelting and electroplating, (Kavner et al, 2008;Sivry et al, 2008a;Sonke et al, 2002;Yin et al, 2018Yin et al, , 2015. The different mechanisms of Cu and Zn isotope fractionation, e.g, via kinetic or thermodynamic equilibrium, and the significant isotopic signature variability observed among different natural compartments and materials, enable these isotopes to be potential environmental indicators useful to detect trends of pollution over time periods, identifying sources of contamination and elucidate contaminant transport mechanisms (Babcsányi et al, 2016;El Azzi et al, 2013;Petit et al, 2015;Sivry et al, 2008;Thapalia et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Assessment of the metal contamination evolution in the Loire estuary using Cu and Zn stable isotopes and geochemical data in sediments

Araújo

Ponzevera

Briant

et al. 2019

Marine Pollution Bulletin

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In this work, a multi-elemental approach combining Cu and Zn stable isotopes is used to assess the metal contamination evolution in the Loire estuary bulk sediments. Elemental geochemical data indicate an increase of metal concentrations from the beginning of the industrial period peaking in the 1990s, followed by an attenuation of metal contamination inputs to the estuary. Zinc isotope compositions suggest a binary mixing process between Zn derived from terrigenous material and multi-urban anthropogenic sources. Copper isotope systematics indicate a single natural dominant source represented by weathered silicate particles from soils and rocks. This work demonstrates the applicability of Zn isotopes to identify anthropogenic Zn sources in coastal systems, even under a low to moderate degree of contamination. Further studies are required to constrain Cu sources and to elucidate possible effects of grain-size and mineralogy in the Cu isotope composition of sediment in the Loire estuary. Highlights ► Geochemical data and Cu and Zn isotopes were investigated in the Loire estuary. ► Cu and Zn isotope compositions of sediments vary in spatial and temporal scales. ► Zinc isotopes suggest a mixing process between terrigenous and urban sources. ► Cu isotopes indicate a natural dominant source represented by weathered material.

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“…However, adverse impacts include impaired water quality, habitat loss and diminished resources which results into poor water quality, deleterious changes in ecosystem structure and tropic dynamics, and risks to human and aquaculture health. Examples of investigations of historical environmental pollution events have included: The Clyde (Scotland), Nerbioi-Ibaizabal (Spain), Gironde (France) and Australian estuaries (Hursthouse et al 1994;Birch et al 2015;Rodriguez-Iruretagoiena et al 2016;Larrose et al 2010;Petit et al 2015). On the Clyde and its tributaries, subsurface coal and ironstone mining, ship-building, textiles, chemical production and paper and engineering industries have all had a significant environmental impact on sediment quality during the conurbation of Glasgow in the nineteenth and twentieth centuries (Edgar et al 1999(Edgar et al , 2003.…”

Section: Industrial Pollution In Estuariesmentioning

confidence: 99%

“…The highest concentrations of PTEs in sediments are found within the "convergence zone" between fresh water and marine water (i.e., within an estuary) due to the high turbidity (PTE sorption to suspended particulate matter) and pH, which affects solubility, sorption and precipitation reactions (Caccia et al 2003;Berner and Berner 2012;Petit et al 2015). The association with the solid phase determines bioavailability and re-dissolution to the water column with mobility and bioavailability in the order of Mn > Cu > Zn > Fe (Palleiro et al 2016;Rodriguez-Iruretagoiena et al 2016) suggesting that, based on natural versus human PTEs, anthropogenic inputs create greater environmental stress on sediment biota.…”

Section: Potentially Toxic Elements (Ptes)mentioning

confidence: 99%

Can the legacy of industrial pollution influence antimicrobial resistance in estuarine sediments?

et al. 2018

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Antimicrobial resistance (AMR) represents a major global health threat, as well as a major hazard to sustainable economic development and national security. It remains, therefore, vital that current research aligns to policy development and implementation to alleviate a potential crisis. One must consider, for example, whether drivers of antibiotic resistance can be controlled in the future, or have they already accumulated in the past, whether from antibiotics and/or other pollutants? Unfortunately, industrial heritage and its pollution impact on the prevalence of environmental AMR have largely been ignored. Focussing on industrialised estuaries, we demonstrate that anthropogenic pollution inputs in addition to the natural diurnal environmental conditions can sufficiently create stressful conditions to the microbiome and thus promote selective pressures to shift the resistome (i.e., collection of resistance traits in the microbiological community). Unfortunately, the bacteria's survival mechanisms, via co-selective pressures, can affect their susceptibility to antibiotics. This review highlights the complexity of estuarine environments, using two key contaminant groups (metals/toxic elements and polyaromatic hydrocarbons), through which a variety of possible chemical and biological pollutant stressors can promote the emergence and dissemination of antimicrobial resistance. We find compelling divers to call on more focused research on historically disrupted ecosystems, in propagating AMR in the real world.

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The estuarine geochemical reactivity of Zn isotopes and its relevance for the biomonitoring of anthropogenic Zn and Cd contaminations from metallurgical activities: Example of the Gironde fluvial-estuarine system, France

Abstract: Please note that this is an author-produced PDF of an article accepted for publication following peer review. The definitive publisher-authenticated version is available on the publisher Web site.

Cited by 35 publications

References 62 publications

Tracing of anthropogenic zinc sources in coastal environments using stable isotope composition

Tracing of anthropogenic zinc sources in coastal environments using stable isotope composition

Assessment of the metal contamination evolution in the Loire estuary using Cu and Zn stable isotopes and geochemical data in sediments

Can the legacy of industrial pollution influence antimicrobial resistance in estuarine sediments?

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