Land use and its impacts on the water quality of the Cachoeirinha Invernada Watershed, Guarulhos (SP)

The urbanization process through which large urban centers have been passing has drastically affected the availability and especially the quality of water. The Cachoeirinha Invernada Watershed (CIW), located in the municipality of Guarulhos (State of São Paulo, Brazil), includes areas with different land use classes. This paper aims to correlate the spatial and temporal effects of land use and land cover on the water quality of the Cachoeirinha Invernada Watershed. In a period of 12 months and at six sampling points along the watershed, the physicochemical parameters temperature (T), pH, turbidity (TU), total solids (TS), electrical conductivity (EC), total phosphorus (TP), biochemical oxygen demand (BOD), as well as microbiological analysis (E. coli) were measured. Water quality was assessed using a modified version (WQIM) of the Water Quality Index (WQI) and the Trophic State Index (TSI). The areas surrounded by urban development presented a marked worsening in water quality, with the downstream point most affected and ranked as ‘POOR’. From the evaluated parameters, what contributed most to water quality degradation of the Cachoeirinha Invernada Watershed (CIW) was E. coli, followed by BOD, and TP, all parameters related to the presence of sewage in the water. The need for the construction of sewerage and waste treatment, protection and recovery of riparian forests, and environmental education regarding waste disposal are necessary to significantly improve the environmental quality of the Cachoeirinha Invernada Watershed.

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Water quality of the reservoirs used for irrigation in São José dos Pinhais, Paraná State, Brazil

Ciência Rural ◽

10.1590/0103-8478cr20150420 ◽

2016 ◽

Vol 46 (4) ◽

pp. 626-631

Author(s):

Tiago Miguel Jarek ◽

Jorge Luiz Moretti de Souza ◽

Nerilde Favaretto ◽

Lucimeris Ruaro

Keyword(s):

Water Quality ◽

Land Use ◽

Coliform Bacteria ◽

Environmental Preservation ◽

Quality Of Water ◽

Average Rainfall ◽

Agricultural Potential ◽

Thermotolerant Coliforms ◽

Type Of Land Use

ABSTRACT: Land use outside its agricultural potential and low vegetation cover in the watershed impair the quality of water used for irrigation and may contribute to the spread of pathogenic coliform bacteria. The objective of this study was to relate the quality of irrigation water with the intensity and type of land use and the rainfall in a vegetable-producing region of São José dos Pinhais, Paraná. Water samples were collected monthly in 2013 from two reservoirs and one preserved source. After collection, the samples were chilled in Styrofoam boxes and transported to the laboratory for analyses of the total and thermotolerant coliforms. Effect of land use was analyzed by probability estimation trees. High land use and weekly above average rainfall increased the probability of thermo tolerant coliforms exceeding the limit allowed under legislation. In regards to thermo tolerant coliforms in the analyzed period, the water from only one reservoir was in accordance with the legislation for the quality of water to irrigate vegetables that are consumed raw. Results of this study are an alert to the local government for the necessity of environmental preservation to maintain the water quality of the county.

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Impact of Landuses on Air and Water Quality- A Review

Current World Environment ◽

10.12944/cwe.13.special-issue1.03 ◽

2018 ◽

Vol 13 (Special issue 1) ◽

pp. 11-21

Author(s):

KALYANI SUPRIYA ◽

R K AGGARWAL ◽

S K BHARDWAJ

Keyword(s):

Water Quality ◽

Land Use ◽

Air Quality ◽

Environmental Change ◽

Anthropogenic Activities ◽

Global Environmental Change ◽

Quality Of Water ◽

Global Environmental ◽

Land Use Impact

Landuse alteration is one of the primary causes of global environmental change. Changes in the landuse usually occurred regionally and globally over last few decades and will carry on in the future as well. These activities are highly influenced by anthropogenic activities and have more serious consequences on the quality of water and air. In the present study relationship between land use impact on water and air quality have been reviewed.

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Impact of Changes in Land Use and Land Cover in the Contribution Basin of Doutor João Penido Water Supply Reservoir of Juiz de Fora, MG, Brazil

Journal of Management and Sustainability ◽

10.5539/jms.v11n1p108 ◽

2021 ◽

Vol 11 (1) ◽

pp. 108

Author(s):

Juliana Nazareth de Lana ◽

Márcio de Oliveira ◽

Vanessa Romario de Paula ◽

Cézar Henrique Barra Rocha

Keyword(s):

Water Quality ◽

Land Use ◽

Land Cover ◽

Water Supply ◽

Quality Parameters ◽

E Coli ◽

The City ◽

Water Supply Reservoirs ◽

Limnological Parameters

Changes in the land use and land cover in areas adjacent to water reservoirs directly affect the quality of this water. This research presents a study on the water quality in the basin of one of the most important public water supply reservoirs in the city of Juiz de Fora, Minas Gerais. The main objective of this study was to analyze the behavior of limnological parameters and the correlation with land use and land cover in the contribution basin of the Doutor João Penido reservoir (CBJPR). The methodology was based on the analysis of water quality parameters, related to water samples collected from 2012 to 2015. Six sampling points were chosen from different locations: spring, medium course, main tributaries of the reservoir and the reservoir catchment. The parameters analyzed were turbidity, total solids (TS), oxygen consumed (OC), dissolved oxygen (DO), electrical conductivity, total nitrogen (TN), total phosphorus (TP), E. Coli, temperature, pH and total dissolved solids (TDS). The Kendall’s tau test was used to analyze the correlations between the parameters of water quality, land use and land cover in the CBJPR. In general, measured parameters showed better results in spring and in reservoir catchment, showing a worse quality of the water along the tributaries and the dilution power of the reservoir. The correlations pointed to the need for protection and preservation of forests in strategic locations to ensure good water quality.

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LIMNOLOGY AND WATER QUALITY IN AN URBAN WATERSHED IN NORTH PANTANAL

HOLOS - ISSN 1807-1600 ◽

10.15628/holos.2016.3235 ◽

2016 ◽

Vol 2 ◽

pp. 166

Author(s):

Paulo Alexandre Jesus Gomes-Silva ◽

Suzy Darley De Lima ◽

Rossean Golin ◽

Zoraidy Marques De Lima ◽

Eduardo Beraldo De Morais ◽

...

Keyword(s):

Water Quality ◽

Anthropogenic Activities ◽

Longitudinal Gradient ◽

Water Stream ◽

E Coli ◽

Vegetation Removal ◽

Quality Of Water ◽

Negative Impacts ◽

The Town

Studies focused on limnology and quality of water bodies are essential to produce data that support the planning and management, diagnose the current situation and propose measures to minimize the possible negative impacts on water resources. The Tereza Botas creek drains the town of Poconé-MT, situated in the Pantanal border. In this sense, the objective of this study was to verify the variations in limnological characteristics along the longitudinal gradient and evaluate the water quality of the Tereza Botas watershed, identifying the impacts from anthropogenic activities of this important Pantanal watershed. Four sampling points along the longitudinal gradient of the water stream have been defined, and physical, chemical and microbiological variables were analyzed. The results indicated that the changes in limnological and water quality derive from the riparian vegetation removal, erosion and discharge of sewage in natura. In addition, high density of E. coli was observed in most of the sampled points, demonstrating that the lack of proper sanitation as well as the presence of rudimentary cesspit are negatively affecting water quality in the headwaters region.

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Trend Of Water Quality Status In Kelantan River Downstream, Peninsular Malaysia

Jurnal Rekayasa Sipil (JRS-Unand) ◽

10.25077/jrs.16.3.178-184.2020 ◽

2020 ◽

Vol 16 (3) ◽

pp. 178

Author(s):

Arniza Fitri ◽

Khairul Nizam Abdul Maulud ◽

Dian Pratiwi ◽

Arlina Phelia ◽

Farli Rossi ◽

...

Keyword(s):

Water Quality ◽

Land Use ◽

Water Samples ◽

Human Activities ◽

Oxygen Demand ◽

Quality Parameters ◽

Peninsular Malaysia ◽

Water Quality Status ◽

Quality Status

The issues of freshwater pollutions and the high demand of clean freshwater for daily human activities have forced developing countries such as Malaysia to continuously monitor the quality of the freshwater. The present study objective is to present the trend of water quality status in the Kelantan River downstream, Peninsular Malaysia from 2005 to 2018. Water samples were collected during dry and monsoon seasons from a sampling station located at downstream of the Kelantan River. Water quality parameters such as temperature, pH and dissolved oxygen (DO) were measured in situ while other parameters were analysed in the laboratory based on retrieved water samples. Water quality status was determined based on National Water Quality Standard (NWQS) for River in Malaysia by calculating the water quality index (WQI) according to the concentration of six water quality parameters involving pH, dissolved oxygen (DO), biochemical oxygen demand (BOD), chemical oxygen demand (COD), suspended solids (TSS) and Ammonia Nitrogen (AN). The results showed that Kelantan River had good water quality during the dry season classified in Class II at 2005. The water quality was found to be slightly lower during the monsoon season in year 2006. In addition, increasing the number of construction, human activities in the land use areas, land use changes and the sewage water from domestic, industrial, wet market and food outlets in the Kelantan State have declined the water quality in Kelantan River from Class II (in 2005) to Class III (in 2010 and 2011) and to become Class IV in 2017 to 2018. The results of the present study are expected to give valuable information for the water managers in order to deal with better strategies in controlling the quality of freshwater at the Kelantan River and minimize the incidence of pollution-oriented problems, thus the water can be utilized for various water uses with appropriate quality.

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Physicochemical quality of and Escherichia coli resistance profiles in urban surface waters

Brazilian Journal of Biology ◽

10.1590/1519-6984.218915 ◽

2020 ◽

Vol 80 (3) ◽

pp. 661-668

Author(s):

I. Malagi ◽

S. C. Sampaio ◽

F. G. S. Pinto ◽

D. M. Rosa ◽

R. R. dos Reis

Keyword(s):

Escherichia Coli ◽

Public Health Problem ◽

Resistant Bacteria ◽

Urban Centers ◽

E Coli ◽

Quality Of Water ◽

Microbiological Parameters ◽

National Environment ◽

Thermotolerant Coliforms

Abstract Aquatic ecosystems of urban rivers are contaminated through waste disposal, which poses a public health problem. The objective of this research was to evaluate the quality of water used for recreation and public supply of six rivers in the city of Cascavel - Paraná, including Cascavel, Quati, Bezerra, Antas, Clarito and Amambay. Samples were collected every 4 months in 2017, and their physicochemical and microbiological parameters, as well as resistance profiles of strains of Escherichia coli to antimicrobials distributed by pharmacies of the primary healthcare network, were evaluated. Parameters such as water temperature, turbidity, total nitrogen, total phosphorus, total coliforms and thermotolerant coliforms showed significant differences. The allowed limit for thermotolerant coliforms, which was set by National Environment Council, Resolution 357/2005, was exceeded in all of the six analyzed rivers. It was determined that 48.1% of E. coli strains showed resistance to nine antimicrobial tested. The highest levels of resistance were found for ampicillin (27.7%), tetracycline (27.7%) and amoxicillin (24.0%). The results of this study contribute to the understanding of the hazards associated with the contamination of springs in urban centers with wastewater containing resistant bacteria. Therefore, recovery work is necessary in these areas because of the importance of these water sources for the entire western region of Paraná state.

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A INTERFERÊNCIA DAS ATIVIDADES ANTRÓPICAS NA QUALIDADE DA ÁGUA EM RESERVATÓRIO DE ABASTECIMENTO URBANO. ESTUDO DE CASO: REPRESA DR. JOÃO PENIDO (JUIZ DE FORA, MG)

Eclética Química Journal ◽

10.26850/1678-4618eqj.v37.1.2012.p09-22 ◽

2017 ◽

Vol 37 (1) ◽

pp. 09

Author(s):

Maria Magaly Heidenreich Silva Bucci ◽

Luiz Fernando Cappa de Oliveira

Keyword(s):

Water Quality ◽

Land Use ◽

Quality Index ◽

Anthropogenic Impact ◽

Trophic State ◽

Trophic State Index ◽

Monitoring Tool ◽

State Index ◽

Negative Impacts

Dr. João Penido dam is the main reservoir for water supply of Juiz de Fora (MG). The forms of land use and occupation have produced negative impacts on the aquatic ecosystem. The general objective of this study was to assess the anthropogenic impact on water quality of the watershed. To this was done to characterize the quality of its waters and the parameters measured were compared with CONAMA Resolution 357/2005. It was also calculated the Water Quality Index (WQI) and the Trophic State Index (TSI). The monitoring tool has proved essential in actions involving preservation of the watershed.

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Implementation of Long-Short Term Memory Neural Network (LSTM) for Predicting The Water Quality Parameters in Sungai Selangor

Journal of Computing Research and Innovation ◽

10.24191/jcrinn.v6i4.243 ◽

2021 ◽

Vol 6 (4) ◽

pp. 40-49

Author(s):

Nur Natasya Mohd Anuar ◽

Nur Fatihah Fauzi ◽

Huda Zuhrah Ab Halim ◽

Nur Izzati Khairudin ◽

Nurizatul Syarfinas Ahmad Bakhtiar ◽

...

Keyword(s):

Water Quality ◽

Short Term Memory ◽

Oxygen Demand ◽

Quality Parameters ◽

Water Quality Parameters ◽

Short Term ◽

Term Memory ◽

Quality Of Water ◽

Long Short Term Memory

Predictions of future events must be factored into decision-making. Predictions of water quality are critical to assist authorities in making operational, management, and strategic decisions to keep the quality of water supply monitored under specific criteria. Taking advantage of the good performance of long short-term memory (LSTM) deep neural networks in time-series prediction, the purpose of this paper is to develop and train a Long-Short Term Memory (LSTM) Neural Network to predict water quality parameters in the Selangor River. The primary goal of this study is to predict five (5) water quality parameters in the Selangor River, namely Biochemical Oxygen Demand (BOD), Ammonia Nitrogen (NH3-N), Chemical Oxygen Demand (COD), pH, and Dissolved Oxygen (DO), using secondary data from different monitoring stations along the river basin. The accuracy of this method was then measured using RMSE as the forecast measure. The results show that by using the Power of Hydrogen (pH), the dataset yielded the lowest RMSE value, with a minimum of 0.2106 at station 004 and a maximum of 1.2587 at station 001. The results of the study indicate that the predicted values of the model and the actual values were in good agreement and revealed the future developing trend of water quality parameters, showing the feasibility and effectiveness of using LSTM deep neural networks to predict the quality of water parameters.

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Analyzing of water quality at Ooty for drinking purpose

World Journal of Advanced Engineering Technology and Sciences ◽

10.30574/wjaets.2021.2.2.0049 ◽

2021 ◽

Vol 2 (2) ◽

pp. 091-099

Author(s):

Gandhimathi A ◽

Naresh K

Keyword(s):

Water Quality ◽

Oxygen Demand ◽

Ammonia Nitrogen ◽

Summer Season ◽

Total Hardness ◽

Quality Of Water ◽

Sample Water ◽

Very High ◽

Drinking Purpose

Analyzing of water quality at Ooty town and to provide clean and safe water. The water quality is analyzed and tabulated in this paper. So we are able to know the quality of water available in the sample taken. The water analyzed about the chemical, physical and biological characteristics of water. It is used to measure the appearance of sample water for the need of living. Water samples are collected from the open well (Latitude and longitude coordinates are 11.410000, 76.699997). The samples were tested for parameters like pH, turbidity, total hardness, fluoride, dissolved oxygen, ammonia nitrogen, chemical oxygen demand, acidity, and alkalinity. The values which are obtained from each parameter were compared with the Indian Standards: 10500 (Drinking water specifications). During the summer season the water demand is very high hence from the result the water was found to be safe for drinking.

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Ground Water Quality of Gandhinagar Taluka, Gujarat, India

E-Journal of Chemistry ◽

10.1155/2008/481694 ◽

2008 ◽

Vol 5 (3) ◽

pp. 435-446 ◽

Cited By ~ 7

Author(s):

Mayur C. Shah ◽

Prateek G. Shilpkar ◽

Pradip B. Acharya

Keyword(s):

Water Quality ◽

Dissolved Oxygen ◽

Water Samples ◽

Oxygen Demand ◽

Total Alkalinity ◽

World Health ◽

Total Hardness ◽

Drinking And Irrigation ◽

Quality Of Water

Present communication deals with study of physico-chemical parameters such as pH, electrical conductivity (EC), total dissolved solids (TDS), total alkalinity (TA), calcium hardness (CaH), magnesium hardness (MgH), total hardness (TH), chloride (Cl-), fluoride (F-), sodium (Na+), potassium (K+), dissolved oxygen (DO), biochemical oxygen demand (BOD), chemical oxygen demand (COD) and sulphate (SO42-) of water samples of bore wells of forty villages of Gandhinagar taluka of Gujarat state,India. The experimental values of water samples were compared with standard values given by World Health Organization (WHO) and United State Salinity Laboratory for drinking and irrigation purposes respectively. Water Quality Index (WQI) was also calculated to know the over all quality of water samples. The statistical analysis like mean, standard deviation (SD), coefficient of variance (% CV), analysis of variance (ANOVA),t-test, coefficient of correlation (r) and regression analysis of obtained data were carried out. The results show that the quality of water is poor and quite good for drinking and irrigation purposes respectively. The variance was found significant at 1% level of significance in case of sodium and potassium content and at 5% in case of total alkalinity and dissolved oxygen among the four regions (North, South, East and West) of Gandhinagar taluka. The linear relation also established for each pair of water quality parameters of studied water samples.

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