Nutrients, emerging pollutants and pesticides in a tropical urban reservoir: Spatial distributions and risk assessment

The Science of The Total Environment, Год журнала: 2016, Номер 575, С. 1307 - 1324

Опубликована: Окт. 16, 2016

Язык: Английский

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Heavy Metals in Bottom Sediments of Reservoirs in the Lowland Area of Western Poland: Concentrations, Distribution, Sources and Ecological Risk

Water, Год журнала: 2018, Номер 11(1), С. 56 - 56

Опубликована: Дек. 31, 2018

The paper presents the results of a study heavy metals (HMs) concentrations in six retention reservoirs located lowland area western Poland. objectives this were to analyze Cd, Cr, Cu, Ni, Pb and Zn concentrations, assess contamination ecological risk, spatial variability HM identify potential sources factors determining concentration distribution. bottom sediment pollution by HMs was assessed on basis index geo-accumulation (Igeo), enrichment factor (EF), load (PLI) metal (MPI). To risk associated with multiple HMs, mean probable effect (PEC) quotient (Qm-PEC) toxic (TRI) used. In order determine similarities differences between sampling sites regard concentration, cluster analysis (CA) applied. Principal component (PCA) performed impact grain size, total organic matter (TOM) content site location Additionally, PCA used catchment, reservoir characteristics hydrological conditions. values Igeo, EF, MPI PLI show that Ni mainly originate from geogenic sources. contrast, come point related agriculture. PEC TRI value greatest occurred at inlet near dam. showed depends silt sand content. However, Pb, Cd are TOM as well. relationship individual stronger than TOM. indicate exception sources—weathering rock material. may additionally depend road traffic. more frequent water exchange has higher whereas sediments is agricultural

Язык: Английский

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Wide exposure of persistent organic pollutants (PoPs) in natural waters and sediments of the densely populated Western Bengal basin, India

The Science of The Total Environment, Год журнала: 2020, Номер 717, С. 137187 - 137187

Опубликована: Фев. 7, 2020

Язык: Английский

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Soil salinity risk in a climate change scenario and its effect on crop yield

Elsevier eBooks, Год журнала: 2020, Номер unknown, С. 351 - 396

Опубликована: Янв. 1, 2020

Язык: Английский

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Chronic increasing nitrogen and endogenous phosphorus release from sediment threaten to the water quality in a semi-humid region reservoir

The Science of The Total Environment, Год журнала: 2024, Номер 931, С. 172924 - 172924

Опубликована: Апрель 30, 2024

Язык: Английский

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Assessment of trace element pollution and its environmental risk to freshwater sediments influenced by anthropogenic contributions: The case study of Alqueva reservoir (Guadiana Basin)

CATENA, Год журнала: 2015, Номер 128, С. 174 - 184

Опубликована: Фев. 16, 2015

Язык: Английский

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Water Quality Assessment of a Hydro-Agricultural Reservoir in a Mediterranean Region (Case Study—Lage Reservoir in Southern Portugal)

Water, Год журнала: 2024, Номер 16(4), С. 514 - 514

Опубликована: Фев. 6, 2024

In regions where drought has become a common occurrence for most of the year and agriculture is main economic activity, development hydro-agricultural systems made it possible to improve water management. Despite this, intensification combined with climate change leads potential decrease in quality management practices are essential agro-environmental sustainability. The aim this study was assess irrigation ecological status reservoir (using support chemical parameters). results showed biological oxygen demand values above maximum stipulated an excellent all sampling periods except April 2018 December 2020 (with highest 10 mg L−1 O2 dry periods). Most total nitrogen concentrations (TN) surpassed those good (0.96 ≤ TN 2.44 N). fact, suspended solids were parameters used classification. From perspective according FAO guidelines regarding infiltration rate, these waters presented light moderate levels restrictions. Thus, revealed that its impact on soil rate can be related, part, meteorological conditions intensive agricultural developed around drainage basin. that, as Lage part Brinches–Enxoé hydraulic circuit, recirculation also important factor may have affected obtained. Furthermore, experimental design, integrating status, parameters, systems; using same from different perspectives; allowed us global idea contamination agroecosystems, improving river basin processes.

Язык: Английский

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Heavy metal contamination in sediments of an artificial reservoir impacted by long-term mining activity in the Almadén mercury district (Spain)

Environmental Science and Pollution Research, Год журнала: 2015, Номер 23(7), С. 6024 - 6038

Опубликована: Июнь 10, 2015

Язык: Английский

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Seasonal and spatial variation of reservoir water quality in the southwest of Ethiopia

Environmental Monitoring and Assessment, Год журнала: 2018, Номер 190(3)

Опубликована: Фев. 22, 2018

Язык: Английский

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Risk Assessment of Irrigation-Related Soil Salinization and Sodification in Mediterranean Areas

Water, Год журнала: 2020, Номер 12(12), С. 3569 - 3569

Опубликована: Дек. 19, 2020

Salinization and sodification are important processes of soil degradation affecting irrigated lands. A large proportion the global area is affected by some degree salinity or sodicity caused intensification irrigation. The increase frequency adverse climatic conditions, like high temperatures variations in precipitation patterns climate change, will potentially amplify these arid, semi-arid, Mediterranean areas. use integrated approaches for spatial temporal prediction risk salinization areas great value, helping decision-making regarding land uses choice more suitable agricultural practices. In this study, based on key criteria assessment irrigation-related (e.g., climate, topography, drainage, water quality irrigation, crop irrigation method), we developed a methodology lands, using two composite indices, Risk (RSA) index Sodification (RSO) index. application indices to real scenario (a Southern Portugal) showed that 67% presented low development, 68% had moderate sodification, 16% was development. Areas under (26%) were mostly characterized slopes fine-textured soils, Luvisols Vertisols, with limited drainage conditions. incidence slope terrain, moderate-to-restricted clay content Luvisols, Vertisols Cambisols, dominated annual crops surface sprinkler systems. These tools have potential be used resource planning policymakers on-farm management decision farmers, contributing sustainability agriculture regions.

Язык: Английский

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