Economic and Environmental Impacts of Limiting Nitrogen Use to Protect Water Quality: A Stochastic Regional Analysis

1994 ◽  
Vol 76 (4) ◽  
pp. 889-903 ◽  
Author(s):  
H.P. Mapp ◽  
D.J. Bernardo ◽  
G.J. Sabbagh ◽  
S. Geleta ◽  
K.B. Watkins
Keyword(s):  
Water Quality ◽  
Environmental Impacts ◽  
Regional Analysis ◽  
Nitrogen Use

Economic and environmental impacts of water quality protection policies: 1. Framework for regional analysis

1993 ◽  
Vol 29 (9) ◽  
pp. 3069-3079 ◽  
Author(s):  
D. J. Bernardo ◽  
H. P. Mapp ◽  
G. J. Sabbagh ◽  
S. Geleta ◽  
K. B. Watkins ◽  
...  
Keyword(s):  
Water Quality ◽  
Environmental Impacts ◽  
Regional Analysis ◽  
Water Quality Protection

scholarly journals Assessment of water quality variations on pretreatment and environmental impacts of SWRO desalination

Desalination ◽  
2021 ◽  
Vol 500 ◽  
pp. 114831
Author(s):  
Abdulrahman Al-Kaabi ◽  
Huda Al-Sulaiti ◽  
Tareq Al-Ansari ◽  
Hamish R. Mackey
Keyword(s):  
Water Quality ◽  
Environmental Impacts

WATER QUALITY MODELLING WITHIN THE RAISON EXPERT SYSTEM

1994 ◽  
Vol 02 (04) ◽  
pp. 453-466 ◽  
Author(s):  
W.G. BOOTY ◽  
I.W.S. WONG
Keyword(s):  
Water Quality ◽  
Expert System ◽  
Intelligent Systems ◽  
Regional Analysis ◽  
Auxiliary Information ◽  
Database Management System ◽  
Environmental Data ◽  
Microcomputer System ◽  
Analysis Tool ◽  
Fully Integrated

The RAISON (Regional Analysis by Intelligent Systems ON a microcomputer) system is a multimedia environmental data analysis tool-kit that contains a fully integrated database management system, spreadsheet, G.I.S., graphics, statistics, modelling and expert system modules as well as a programming language that allows the user to create specialized applications. This paper presents case studies of modelling applications which illustrate the utility of the system in assisting the users of water quality models to make the models more user friendly. This is accomplished through the use of added visualization of inputs and auxiliary information as well as on-line knowledge added. This system also enables the user to represent model results in numerous graphical forms as well as animated results presented on maps. In addition, it has the ability to interface models with expert systems to aid in the selection and use of models and in the interpretation of results.

scholarly journals Observed and Potential Impacts of the COVID-19 Pandemic on the Environment

2020 ◽  
Vol 17 (11) ◽  
pp. 4140 ◽  
Author(s):  
Sorin Cheval ◽  
Cristian Mihai Adamescu ◽  
Teodoro Georgiadis ◽  
Mathew Herrnegger ◽  
Adrian Piticar ◽  
...  
Keyword(s):  
Public Health ◽  
Water Quality ◽  
Environmental Factors ◽  
Environmental Impacts ◽  
Human Activity ◽  
Urban Areas ◽  
Rapid Onset ◽  
Anthropogenic Factors ◽  
The Novel ◽  
Novel Coronavirus

Various environmental factors influence the outbreak and spread of epidemic or even pandemic events which, in turn, may cause feedbacks on the environment. The novel coronavirus disease (COVID-19) was declared a pandemic on 13 March 2020 and its rapid onset, spatial extent and complex consequences make it a once-in-a-century global disaster. Most countries responded by social distancing measures and severely diminished economic and other activities. Consequently, by the end of April 2020, the COVID-19 pandemic has led to numerous environmental impacts, both positive such as enhanced air and water quality in urban areas, and negative, such as shoreline pollution due to the disposal of sanitary consumables. This study presents an early overview of the observed and potential impacts of the COVID-19 on the environment. We argue that the effects of COVID-19 are determined mainly by anthropogenic factors which are becoming obvious as human activity diminishes across the planet, and the impacts on cities and public health will be continued in the coming years.

scholarly journals Análise coleta de esgoto de Contagem/MG: Uma realidade da situação sanitária do município entre os anos de 2010-14 / Analysis of sewage collect from Contagem/MG: A reality of the sanitary situation of the municipality between the years 2010-14

2016 ◽  
Vol 26 (1) ◽  
pp. 50
Author(s):  
André Lopes Vilaça Santos ◽  
Altino Barbosa Caldeira
Keyword(s):  
Water Quality ◽  
Environmental Impacts ◽  
Service Provider ◽  
Growth Rates ◽  
Minas Gerais ◽  
Public Water Supply ◽  
Population Growth Rates ◽  
Continuous Population ◽  
Belo Horizonte ◽  
The City

<p>O presente artigo buscou discutir a coleta de esgoto pela rede oficial da Companhia de Saneamento de Minas Gerais (COPASA), prestadora de serviço responsável por disponibilizar água tratada, além de coletar e tratar o esgoto, para só assim desaguá-lo nos cursos d’água de Contagem/MG. Contagem é um importante município que compõe a Região Metropolitana de Belo Horizonte (RMBH), que vem apresentando contínuos índices de crescimento populacional nos últimos anos, sendo que, a expansão do tecido urbano vem acontecendo também de maneira clandestina, promovendo desta forma, vários impactos ambientais no município, que possui em mais da metade do município, uma Área de Proteção Ambiental (APA), que possui no seu interior um manancial de abastecimento público, a represa de Várzea das Flores. Foram analisados, tabulados e transformados em gráficos, dados do Sistema Nacional de Informações sobre Saneamento (SNIS) entre os anos de 2010 e 2014, demonstrando que, o município de Contagem precisa de consideráveis avanços na coleta de esgoto, para que haja a redução dos impactos ambientais, e a melhoria da qualidade da água nos cursos d’água e reservatório do município.<strong></strong></p><p><strong> </strong></p><p><strong>Palavras-chave: </strong>Esgotamento Sanitário, Contagem, Impactos Ambientais, Meio Ambiente</p><p> </p><p><strong>Abstract</strong></p><p>This paper reason to discuss the sewerage by the official of the Companhia de Saneamento de Minas Gerais (COPASA), service provider responsible for providing treated water, as well as collect and treat sewage, for only then empties it in watercourses water Contagem. Contagem is an important municipality that make up the Região Metropolitana de Belo Horizonte (RMBH), which has been showing continuous population growth rates in recent years, with the expansion of the urban fabric is also happening clandestinely, thus promoting several impacts environmental in the city, which has more than half of the municipality, an Área de Proteção Ambiental (APA), which has in its interior a public water supply, the dam Várzea das Flores. Were analyzed, tabulated and graphed, data of the Sistema Nacional de Informações sobre Saneamento (SNIS) between the years 2010 and 2014, showing that the city of Contagem need considerable advances in sewerage, so there is a reduction in environmental impacts, and improving water quality in rivers and municipal dam.<strong></strong></p><p><strong> </strong></p><p><strong>Keywords: </strong>Sewerage, Contagem, Environmental impacts, Environment</p>

scholarly journals Environmentally Enhanced Turbines for Hydropower Plants: Current Technology and Future Perspective

2021 ◽  
Vol 9 ◽  
Author(s):  
Emanuele Quaranta ◽  
Juan I. Pérez-Díaz ◽  
Pedro Romero–Gomez ◽  
Alberto Pistocchi
Keyword(s):  
Water Quality ◽  
Case Studies ◽  
Environmental Impacts ◽  
Cost Effective ◽  
Energy Generation ◽  
Future Perspective ◽  
Current Technology ◽  
The Past ◽  
Hydropower Plants ◽  
Improve Water Quality

Environmentally enhanced turbines (EETs) have gained attention in the past two decades in order to reduce environmental impacts of hydropower plants on fish communities and on water quality. In this mini-review the main EETs are discussed, focusing on the Alden and Minimum Gap Runner turbines to reduce fish injury and on self-aerating and self/free-lubricant turbines to improve water quality. The review shows that EETs can be efficiently adopted instead of traditional turbines: EETs are cost-effective, efficient in terms of energy generation and have shown to reduce environmental impacts. Scientific gaps are also highlighted and case studies reported to better support refurbishment and new projects.

scholarly journals Association of type 1 diabetes and concentrations of drinking water components in Newfoundland and Labrador, Canada

2018 ◽  
Vol 6 (1) ◽  
pp. e000466 ◽  
Author(s):  
Roger Chafe ◽  
Rana Aslanov ◽  
Atanu Sarkar ◽  
Peter Gregory ◽  
Alex Comeau ◽  
...  
Keyword(s):  
Water Quality ◽  
Type 1 Diabetes ◽  
Drinking Water ◽  
Newfoundland And Labrador ◽  
Regional Analysis ◽  
Incidence Rates ◽  
Community Based ◽  
Design And Methods ◽  
Incident Cases

ObjectiveTo determine the association between drinking water quality and rates of type 1 diabetes in the Newfoundland and Labrador (NL) population, which has one of the highest incidences of type 1 diabetes reported globally.Research design and methodsThe study used a community-based, case-control design. We first calculated incidence rates of type 1 diabetes at the provincial, regional and community levels. The connection between incidence rates and components in public water supplies were then analyzed in three ways: to evaluate differences in water quality between communities with and without incident cases of type 1 diabetes, and to analyze the relationship between water quality and incidence rates of type 1 diabetes at both the community and regional levels.ResultsThe provincial incidence of type 1 diabetes was 51.7/100 000 (0-14 year age group) for the period studied. In the community-based analysis, there were significant associations found between higher concentrations of arsenic (β=0.268, P=0.013) and fluoride (β=0.202, P=0.005) in drinking water and higher incidence of type 1 diabetes. In the regional analysis, barium (β=−0.478, P=0.009) and nickel (β=−0.354, P=0.050) concentrations were negatively associated with incidence of type 1 diabetes.ConclusionsWe confirmed the high incidence of type 1 diabetes in NL. We also found that concentrations of some components in drinking water were associated with higher incidence of type 1 diabetes, but no component was found to have a significant association across the three different levels of analysis performed.

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