Considerations on the monitoring of water quality in urban streams: a case study in Portugal

Guerreiro, Maria João; Abreu, Isabel; Monteiro, Álvaro; Jesus, Teresa Maria Gonçalves Moreira de; Fonseca, Ana

doi:10.1007/s10661-020-8245-y

Cited by 6 publications

(4 citation statements)

References 24 publications

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“…This nutrient is not readily available, and plants do not use it efficiently, which leads to a continuous application in agricultural fields. Therefore, an uncontrolled accumulation of phosphorus in the soil [ 51 ] may later be leached into aquatic ecosystems by surface runoff or soil erosion [ 1 , 51 ] and trigger eutrophication processes, threatening aquatic life [ 1 , 50 , 51 ]. In Selho and Costa-Couros rivers, the presence of phosphorus seems to be more influenced by spatial than seasonal factors, as significant differences were found between sampling sites but not between seasons ( Table S1 ).…”

Section: Discussionmentioning

confidence: 99%

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Microplastic Contamination and Ecological Status of Freshwater Ecosystems: A Case Study in Two Northern Portuguese Rivers

Ribeiro¹,

Gravato

Cardoso

et al. 2022

IJERPH

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Background: Most European rivers have not yet achieved “good” ecological status. In addition, the presence and abundance of microplastics (MPs) in freshwater is a matter of great concern to the scientific community. Methodology: This study assesses the ecological status of four sampling sites of Selho (S1–S4) and Costa-Couros (C1–C4) rivers (Guimarães, Portugal), and the abundance of MPs in sediments and benthic macroinvertebrates (Oligochaeta) from those sites. Results: All sites of both rivers under higher pressure did not reach a “good” ecological status (S2–S3, C2–C4) based on the macroinvertebrate community. High levels of nutrients were observed at all sites in both rivers (except C2), especially phosphorus. In the Oligochaeta’s gut of Costa-Couros river, the high number of MPs seems to be associated with their weight (95.25 ± 25.61 to 1069.00 ± 385.30 MPs g/fresh weight), suggesting the existence of malnutrition and digestive disorders, whereas the highest number of MPs in gut (134.00 ± 30.36 to 558.6 ± 100.70 MPs g/fresh weight) were found for the heaviest organisms of Selho. Conclusions: Thus, sites with higher ecological status do not necessarily have lower abundance of MPs. In the sediments, urbanization seems to be the main driver for MP contamination. MP contamination is pervasive across the sediments and Oligochaeta’s gut in both rivers. Since MPs have the potential to cause harm to environmental and human health, it is essential to monitor not only the ecological status of freshwaters, but also emerging pollutants such as MPs.

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Section: Discussionmentioning

confidence: 99%

“…Rivers have always played a crucial role in the development of societies, providing several services of great importance, from drinking water to energy production and transportation [ 1 ]. However, they are considered one of the most threatened ecosystems in Europe [ 2 , 3 ].…”

Section: Introductionmentioning

confidence: 99%

Microplastic Contamination and Ecological Status of Freshwater Ecosystems: A Case Study in Two Northern Portuguese Rivers

Ribeiro¹,

Gravato

Cardoso

et al. 2022

IJERPH

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“…Most of the studies on monitoring in urban areas have focused on the influence of air pollution by altitude, sampling frequency, and observation of monitoring points [49][50][51][52][53][54][55][56][57][58][59]. In some studies, monitoring was performed, and a method of selecting optimal points in consideration of parameters or improving quality was presented [60][61][62]70].…”

Section: Discussionmentioning

confidence: 99%

“…In a study on water pollution in rivers in urban areas, an economical sampling frequency for monitoring and a method of selecting parameters were presented [54]. In addition, the selection of optimal locations and the influence of sensors were proposed considering fixed or moving monitoring points [55][56][57][58].…”

Section: Relative Workmentioning

confidence: 99%

A Study on the Determination Methods of Monitoring Point for Inundation Damage in Urban Area Using UAV and Hydrological Modeling

Song

Lee

Kang

et al. 2022

Water

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Recently, unmanned aerial vehicles (UAVs) have been used in various fields, such as military, logistics, transportation, construction, and agriculture, making it possible to apply the limited activities of humans to various and wide ranges. In addition, UAVs have been utilized to construct topographic data that are more precise than existing satellite images or cadastral maps. In this study, a monitoring point for preventing flood damage in an urban area was selected using a UAV. In addition, the topographic data were constructed using a UAV, and the flow of rainwater was examined using the watershed analysis in an urban area. An orthomosaic, a digital surface model (DSM), and a three-dimensional (3D) model were constructed for the topographic data, and a precision of 0.051 m based on the root mean square error (RMSE) was achieved through the observation of ground control points (GCPs). On the other hand, for the watershed analysis in the urban area, the point in which the flow of rainwater converged was analyzed by adjusting the thresholds. A monitoring point for preventing flood damage was proposed by examining the topographic characteristics of the target area related to the inflow of rainwater.

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Anthropogenic actions alter the aquatic environment quality: biomonitoring study of a river in Southern Brazil

Storck,

do Amaral,

da Cruz

et al. 2024

Aquat Ecol

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Considerations on the monitoring of water quality in urban streams: a case study in Portugal

Cited by 6 publications

References 24 publications

Microplastic Contamination and Ecological Status of Freshwater Ecosystems: A Case Study in Two Northern Portuguese Rivers

Microplastic Contamination and Ecological Status of Freshwater Ecosystems: A Case Study in Two Northern Portuguese Rivers

A Study on the Determination Methods of Monitoring Point for Inundation Damage in Urban Area Using UAV and Hydrological Modeling

Anthropogenic actions alter the aquatic environment quality: biomonitoring study of a river in Southern Brazil

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