Eutrophication of Piedmont Quarry Lakes (North-Western Italy): Hydrogeological Factors, Evaluation of Trophic Levels and Management Strategies

Castagna, Sara; Luca, Domenico Antonio De; Lasagna, Manuela

doi:10.1142/s1464333215500362

Cited by 20 publications

(7 citation statements)

References 11 publications

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“…2) and the Quaternary alluvial deposits unit (f and g in Fig. 2) (Bortolami et al 1976;Bove et al 2005;De Luca et al 2007, 2014Castagna et al 2015aCastagna et al , 2015b. The shallow unconfined aquifer exists in the Quaternary alluvial deposits unit (Middle Pleistocene-Holocene), which is characterised by coarse gravel and sand with subordinate silty-clayey intercalations.…”

Section: Site Descriptionmentioning

confidence: 99%

The use of multilevel sampling techniques for determining shallow aquifer nitrate profiles

Lasagna

Luca

2016

Environ Sci Pollut Res

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Nitrate is a worldwide pollutant in aquifers. Shallow aquifer nitrate concentrations generally display vertical stratification, with a maximum concentration immediately below the water level. The concentration then gradually decreases with depth. Different techniques can be used to highlight this stratification. The paper aims at comparing the advantages and limitations of three open hole multilevel sampling techniques (packer system, dialysis membrane samplers and bailer), chosen on the base of a literary review, to highlight a nitrate vertical stratification under the assumption of (sub)horizontal flow in the aquifer. The sampling systems were employed at three different times of the year in a shallow aquifer piezometer in northern Italy. The optimal purge time, equilibration time and water volume losses during the time in the piezometer were evaluated. Multilevel techniques highlighted a similar vertical nitrate stratification, present throughout the year. Indeed, nitrate concentrations generally decreased with depth downwards, but with significantly different levels in the sampling campaigns. Moreover, the sampling techniques produced different degrees of accuracy. More specifically, the dialysis membrane samplers provided the most accurate hydrochemical profile of the shallow aquifer and they appear to be necessary when the objective is to detect the discontinuities in the nitrate profile. Bailer and packer system showed the same nitrate profile with little differences of concentration. However, the bailer resulted much more easier to use.

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Section: Site Descriptionmentioning

confidence: 99%

The use of multilevel sampling techniques for determining shallow aquifer nitrate profiles

Lasagna

Luca

2016

Environ Sci Pollut Res

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“…The factors that affect the pollution connected to mining activities are mainly linked to the ore type, metal being extracted, exploitation method, ore processing, pollution control efforts, and the geochemical and hydro-geochemical conditions of water and surroundings [35]. Ways in which mining activities and extractive wastes (EW) facilities can affect the environment are generally due to changes in hydrography and hydrogeological settings of an area [36][37][38], the formation of acid mine drainage (AMD) [39][40][41][42][43][44], the contamination of sediments, the contamination of water sources with exposed metals [45][46][47][48][49][50], processing chemical pollution [51], and air dispersion of potentially harmful minerals.…”

Section: Towards a Sustainable Path In Mining Sector In Africamentioning

confidence: 99%

Cooperative Projects to Share Good Practices towards More Effective Sustainable Mining—SUGERE: A Case Study

et al. 2022

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The supply of raw materials is a global challenge to be addressed; themes such as “sustainability”, “responsibility”, and “eco-compatibility” represent the cornerstones for proceeding towards a “wise” management of georesources. According to the United Nations’ SDGs, the economic development of countries must go hand in hand with the improvement of their environmental, health, and social sustainability. From this perspective, the exploitation of georesources needs to be handled with an interdisciplinary approach that tackles not only the technical, economic, and environmental issues, but also the social, legislative, and human health ones. In recent years, Europe has promoted several cooperative projects aimed at boosting sustainability in the extractive industry. To achieve and guarantee concrete and truly sustainable mining, it is necessary to build and strengthen educational and training skills. With these objectives in mind, the first results of the EU–Africa SUGERE Erasmus+ project are presented here. The objects of the project are the implementation of Bachelor, Master, and doctoral curricula in geology and mining engineering and the promotion of socioeconomic development thanks to the training of experts who are able to cooperate and work in an interdisciplinary manner for a sustainable approach to local mine exploitation.

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“…Piedmont is an Italian region located in the north western Italy. The Piedmont Po plain covers almost the 27% of the territory of the Piedmont region (De Luca et al 2020) and, due to its size, is considered the greatest reservoir of GW of the region (Castagna et al 2015;Debernardi et al 2008).…”

Section: Study Areamentioning

confidence: 99%

Climate impact assessment to the groundwater levels based on long time-series analysis in a paddy field area (Piedmont region, NW Italy): preliminary results

Egidio¹,

Lasagna²,

Mancini³

et al. 2022

AS-ITJGW

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The analysis of the time-series of groundwater level are extremely important to observe the behaviours of groundwater over time and to identify any critical situations. The studied area is an agricultural district characterised by paddy fields, located in the eastern part of Piedmont, on the border with Lombardy. In this area long time-series of groundwater level, starting from the 1960s, have been collected in 16 wells. Water table data have a good completeness (in the majority of the cases >90%). Firstly, the groundwater hydrodynamic behaviour, based on water table levels, was investigated to highlight the response of groundwater to the recharge. A basic statistical analysis was performed (mean, median, standard deviation, maximum, minima), and then trends of water table levels were evaluated in order to better observe the long-term behaviour of groundwater. These analyses allowed to observe a groundwater hydrodynamic behaviour characterised by a repeating annual pattern (minimum in February/March and maximum in August/September) in correspondence to the period of irrigation. Moreover, trend analysis highlighted the presence of both wells with a decreasing water table (with maximum lowering of 4.3 m in 60 years) and wells with an increasing water table (with maximum rises of 2.8 m in 35 years). Furthermore, in most cases, it can be observed that all three trends analysed agree on being positive or negative. Future insights will be the comparison of these long time-series with the meteorological data, and the investigation of other factors (e.g. anthropic withdrawal, variations of cultivation practices and irrigation, geology of the subsoil) to better understand the causes of the water table fluctuations and trends.

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Eutrophication of Piedmont Quarry Lakes (North-Western Italy): Hydrogeological Factors, Evaluation of Trophic Levels and Management Strategies

Cited by 20 publications

References 11 publications

The use of multilevel sampling techniques for determining shallow aquifer nitrate profiles

The use of multilevel sampling techniques for determining shallow aquifer nitrate profiles

Cooperative Projects to Share Good Practices towards More Effective Sustainable Mining—SUGERE: A Case Study

Climate impact assessment to the groundwater levels based on long time-series analysis in a paddy field area (Piedmont region, NW Italy): preliminary results

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