Natural Hexavalent Chromium in the Pollino Massif Groundwater (Southern Apennines, Italy): Occurrence, Geochemistry and Preliminary Remediation Tests by Means of Innovative Adsorbent Nanomaterials

Paternoster, Michele; Rizzo, Giovanna; Sinisi, Rosa; Vilardi, Giorgio; Palma, Luca Di; Mongelli, Giovanni

doi:10.1007/s00128-020-02898-7

Cited by 9 publications

(5 citation statements)

References 13 publications

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“…Hydrochemically [ 35 , 36 ], the groundwater in these piezometers ranges from three-ion (P10) to even six-ion (all other piezometers). The water in the P10 piezometer can be classified as SO 4 -Ca-Mg, and in the remaining piezometers, for the most part, water of the HCO 3 -SO 4 -Cl-Mg-Ca-Na type can be observed.…”

Section: Study Area and Datamentioning

confidence: 99%

The Use of the Contamination Index and the LWPI Index to Assess the Quality of Groundwater in the Area of a Municipal Waste Landfill

Knopek

Dąbrowska

2021

Toxics

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Environmental degradation caused by the migration of pollutants from landfills is one of the biggest problems for urban areas. Systematic monitoring of groundwater in the vicinity of waste dumps allows for an assessment of the degree of risk to the soil and water environment. In this paper, spatiotemporal variation of groundwater pollution near a municipal landfill in Sosnowiec (southern Poland) was investigated. For this purpose, the monitoring results of five physicochemical indicators from 2014–2019 were used. This study presents an example of the application of the Landfill Water Pollution Index (LWPI) and the Cd Contamination Index. The obtained results indicated that the tested waters were negatively influenced by municipal landfills, especially in the southern part (piezometers P8 and P10). The values of the Contamination Index even reached a value equal of about 1400, while the values of the LWPI index reached 305. Significantly lower values of both indicators were obtained using the results of monitoring studies for other piezometers located upstream from the landfill but belonging to the observation network of a neighboring facility. The indices used permit a determination of the level of groundwater contamination from the described landfill and can be used in similar research areas.

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Section: Study Area and Datamentioning

confidence: 99%

The Use of the Contamination Index and the LWPI Index to Assess the Quality of Groundwater in the Area of a Municipal Waste Landfill

Knopek

Dąbrowska

2021

Toxics

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“…The two areas are characterized by the presence of several springs, some representing low-enthalpy geothermal resources (Zarlenga, 2011;Vespasiano et al, 2014Vespasiano et al, , 2015aVespasiano et al, , 2015bVespasiano et al, , 2015cVespasiano et al, , 2016Vespasiano et al, , 2021Apollaro et al, 2015Apollaro et al, , 2016Apollaro et al, , 2020. The geochemical and isotopic compositions of Calabrian and Pollino waters have previously been investigated to define their geochemical features and geothermal potential (Bencini and Ciracò, 1982;Duchi et al, 1991), to investigate a link with seismicity and implications for a fluid-fault relationship (Gurrieri et al, 1984;Calcara and Quattrocchi, 1993;Italiano et al, 2010;Apollaro et al, 2020) and to evaluate potential natural metal contamination of spring waters (Margiotta et al, 2012(Margiotta et al, , 2014Paternoster et al, 2021). However, no attempt has been made so far to model the water-gas interaction processes and to quantify the regional-scale budget of CO 2 sequestrated/ transported by aquifers at depths and released into the atmosphere upon spring discharge.…”

Section: Introductionmentioning

confidence: 99%

“…TF, Taormina Fault; CTF, Catanzaro Trough Fault; SF, Sangineto Fault. For a detailed overview of the individual springs, seePaternoster et al (2021),Apollaro et al (2020),Apollaro et al (2019c),Apollaro et al (2012),Vespasiano et al (2021).…”

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confidence: 99%

Active degassing of crustal CO2 in areas of tectonic collision: A case study from the Pollino and Calabria sectors (Southern Italy)

Randazzo

Caracausi²,

Aiuppa³

et al. 2022

Front. Earth Sci.

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Carbon dioxide (CO2) is released from the Earth’s interior into the atmosphere through both volcanic and non-volcanic sources in a variety of tectonic settings. A quantitative understanding of CO2 outgassing fluxes in different geological settings is thus critical for decoding the link between the global carbon budget and different natural processes (e.g., volcanic eruption and earthquake nucleation) and the effects on the climate evolution over geological time. It has recently been proposed that CO2 degassing from non-volcanic areas is a major component of the natural CO2 emission budget, but available data are still sparse and incomplete. Here, we report the results of a geochemical survey aimed at quantifying CO2 emissions through cold and thermal springs of the tectonically active Pollino Massif and Calabrian arc (Southern Italy). The chemical ad isotopic (He and C) composition of fifty-five dissolved gas samples allows to identify two different domains: 1) a shallow system dominated by gas components of atmospheric signature (helium, hereafter He) and biogenic origin (C), and 2) a deeper system in which crustal/deep fluids (CO2 and He) are dominant. The measured He isotope ratios range from 0.03 to 1.1 Ra (where Ra is the He isotopic ratio in the atmosphere) revealing a variable atmospheric contamination. Furthermore, the He isotopic data indicate the presence of traces of mantle He contributions (2%–3%) in the thermal groundwater. The prevailing low R/Ra values reflect the addition of crustal radiogenic 4He during groundwater circulation. Using helium and carbon isotope data, we explore the possible sources of fluids and the secondary processes (dissolution/precipitation) that act to modify the chemistry of pristine volatiles. For the thermal springs, we estimate a deep C output of 2.3 x 107 to 6.1 x 108 mol year−1. These values correspond to deep CO2 fluxes per square km comparable with those estimated in several active and inactive volcanic areas and in continental regions affected by metamorphic CO2 degassing (e.g., the southern margin of the Tibetan Plateau).

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“…The weathering processes of ultramafic rocks, depending mainly on the climate conditions and morphology, may result in the formation of laterites, both releasing significant amounts of Cr among other heavy metals (Ni, Co, Mn, Fe). Groundwater from sites characterized by the extensive presence of ultramafic rocks contain more than 10 µg/L Cr(VI), reaching values up to hundreds of µg/L of Cr(VI) [6,[9][10][11][12][13][14][15][16]. The contamination of sites characterized by the extensive presence of ultramafic rocks contain more than 10 μg/L Cr(VI), reaching values up to hundreds of μg/L of Cr(VI) [6,[9][10][11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

“…Groundwater from sites characterized by the extensive presence of ultramafic rocks contain more than 10 µg/L Cr(VI), reaching values up to hundreds of µg/L of Cr(VI) [6,[9][10][11][12][13][14][15][16]. The contamination of sites characterized by the extensive presence of ultramafic rocks contain more than 10 μg/L Cr(VI), reaching values up to hundreds of μg/L of Cr(VI) [6,[9][10][11][12][13][14][15][16]. The contamination of groundwater by Cr may be derived from industrial activities, such as in the Czech Republic (a highly industrialized country in Central Europe) [17], at the area of Friuli Venezia Giulia (northern Italy) [18], the Assopos Basin (Oinofyta or Inofyta, near the Assopos river) in Greece, exhibiting as high as 8000 μg/L Cr(VI) in shallow groundwater [19].…”

Section: Introductionmentioning

confidence: 99%

The Cr(VI) Stability in Contaminated Coastal Groundwater: Salinity as a Driving Force

Eliopoulos

Economou-Eliopoulos

2021

Minerals

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Chromium concentrations in seawater are less than 0.5 μg/L, but the Cr(VI) in contaminated coastal groundwater affected by Cr-bearing rocks/ores and/or human activities, coupled with the intrusion of seawater may reach values of hundreds of μg/L. A potential explanation for the stability of the harmful Cr(VI) in contaminated coastal aquifers is still unexplored. The present study is an overview of new and literature data on the composition of coastal groundwater and seawater, aiming to provide potential relationships between Cr(VI) with major components in seawater and explain the elevated Cr(VI) concentrations. It is known that the oxidation of Cr(III) to Cr(VI) and the subsequent back-reduction of Cr(VI) processes, during the transport of the mobilized Cr(VI) in various aquifers, facilitate the natural attenuation process of Cr(VI). Moreover, the presented positive trend between B and Cr(VI) and negative trend between δ53Cr values and B concentration may suggest that seawater components significantly inhibit the Cr(VI) reduction into Cr(III), and provide insights on the role of the borate, [B(OH)4]− ions, a potential buffer, on the stability of Cr(VI) in coastal groundwater. Therefore, efforts are needed toward the prevention and/or minimization of the contamination by Cr(VI) of in coastal aquifers, which are influenced by the intrusion of seawater and are threatened by changes in sea level, due to climate change. The knowledge of the contamination sources, hotspots and monitoring of water salinization processes (geochemical mapping) for every coastal country may contribute to the optimization of agricultural management strategies.

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Natural Hexavalent Chromium in the Pollino Massif Groundwater (Southern Apennines, Italy): Occurrence, Geochemistry and Preliminary Remediation Tests by Means of Innovative Adsorbent Nanomaterials

Cited by 9 publications

References 13 publications

The Use of the Contamination Index and the LWPI Index to Assess the Quality of Groundwater in the Area of a Municipal Waste Landfill

The Use of the Contamination Index and the LWPI Index to Assess the Quality of Groundwater in the Area of a Municipal Waste Landfill

Active degassing of crustal CO2 in areas of tectonic collision: A case study from the Pollino and Calabria sectors (Southern Italy)

The Cr(VI) Stability in Contaminated Coastal Groundwater: Salinity as a Driving Force

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