Water quality in individual groundwater supply systems in Southern Brazil

Schneider, Silvana; Golombieski, Jaqueline Ineu; Seben, Débora; Menegazzo, Kananda Cabral; Wastowski, Arci Dirceu; Borba, Willian Fernando de; Decezaro, Samara Terezinha; Medeiros, Raphael Corrêa

doi:10.5902/2179460x65195

Cited by 3 publications

(1 citation statement)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Despite the water availability in Brazil being considered abundant, there are current problems for water users due to disorderly concentrations of demands, low efficiency in water supply and enormous degradation of the quality of water bodies (Schneider et al, 2021). Furthermore, climate projections estimate a reduction in annual rainfall between 40 and 45% in the state of São Paulo (Lyra et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Integrated management of groundwater and surface water under climate change scenarios

Olivos,

Méllo Jr.

2023

RBRH

View full text Add to dashboard Cite

This study aimed to simulate the joint use of surface water and groundwater in the urban-rural basins of the municipality of São Carlos and evaluated the impact of climate change scenarios in the system. A calibrated WEAP model is employed with 5 km resolution climate model data from the CPTEC - PROJETA project with the future scenario of RCP85 and RCP45 from 2007 to 2050. This system is utilized to create various future scenarios of groundwater and surface-water abstraction of public water supply, industrial and private demands, with combination of conjunctive use 50-50% of both type of resources and 100% from one them. Results were assessed by analyzing the flow duration curves and the level of the aquifer for the 2007-2050 period. The simulated climatic scenarios indicate that the pressure over groundwater in the area could represent a challenge due to the progressive depletion of the resources affecting the system sustainability, the flow of the main rivers with the 95% percentile presents a reduction of 20% in some cases. This modelling approach can be used in other river basins to manage scenarios of supply and demand.

show abstract

Section: Introductionmentioning

confidence: 99%

Integrated management of groundwater and surface water under climate change scenarios

Olivos,

Méllo Jr.

2023

RBRH

View full text Add to dashboard Cite

show abstract

Environmental macroscopic analysis of shallow wells containing water for human consumption in rural properties in Brazil

Schneider,

Tarone,

Hofstätter

et al. 2023

CeN

Self Cite

View full text Add to dashboard Cite

Water is an essential natural resource for maintaining life and its quality is influenced by the land use and occupation within a watershed. Furthermore, water quality has a direct impact on the health and well-being of a population. The present study aimed to carry out a macroscopic environmental analysis in shallow wells found in rural properties distributed in the states of Rio Grande do Sul and Santa Catarina, including the Uruguay River Basin. The evaluation period of the macroscopic parameters took place in April 2021. The physical characteristics of the water and the state of preservation of the shallow wells and their surroundings were visually evaluated in rural properties with predominant land use and occupation through dairy production, swine farming activity and seasonal crops (agricultural crops). As results obtained for the environmental macroscopic analysis, through the weighting of the characteristics observed in each parameter about the state of preservation of the shallow wells, it was verified that they presented different classifications, ranging from the Very Good class to the Poor, being possible to identify the main sources that cause negative impacts on the evaluated locations (state of vegetation, use by animals, protection of the area and proximity to residences). Therefore, rural producers were advised to carry out protection and care measures around these wells that presented lower classifications, Fair (38,10%) and Poor (19,09%) to improve the conditions and aspects that directly influence the quality of water for human consumption.

show abstract

Importance of Macroscopic Environmental Analysis for spring preservation used for human consumption

Seben,

Schneider,

Batista

et al. 2024

CeN

View full text Add to dashboard Cite

The lack and deterioration of the quality of water resources have made governments take educational measures and required society to rethink habits concerning the preservation and conservation of water quality. Thus, the present study aims to present the importance of spring preservation for water quality conservation as well as to develop a macroscopic environmental analysis of springs located in the state of Rio Grande do Sul, Brazil. Twenty springs were observed in two different periods of the year (May and November 2019), which had different economic activities: native forest – public domain; soybean, tobacco, and pig farming – private domain, in their surroundings. The study adopted five replications (different municipalities), and a macroscopic environmental analysis was carried out in each spring to classify them according to the extent of preservation. It was observed that most of the springs show “Good” and “Very good” preservation. However, it can be concluded that the economic activities developed in the surroundings do not interfere with spring preservation, and the methodology adopted is not recommended for the macroscopic environmental analysis in areas of native forest due to the characteristics considered.

show abstract

Water quality in individual groundwater supply systems in Southern Brazil

Cited by 3 publications

References 18 publications

Integrated management of groundwater and surface water under climate change scenarios

Integrated management of groundwater and surface water under climate change scenarios

Environmental macroscopic analysis of shallow wells containing water for human consumption in rural properties in Brazil

Importance of Macroscopic Environmental Analysis for spring preservation used for human consumption

Contact Info

Product

Resources

About