scholarly journals Water quality assessment of the Demetrio stream: an affluent of the Gravataí River in the South of Brazil

2022 ◽  
Vol 82 ◽  
Author(s):  
L. P. Martins ◽  
J. Sampaio ◽  
R. S. Godoi ◽  
L. K. Vargas ◽  
F. R. Silva ◽  
...  
Keyword(s):  
Water Quality ◽  
Environmental Quality ◽  
Water Quality Assessment ◽  
Metropolitan Region ◽  
Porto Alegre ◽  
Physico Chemical ◽  
Microbiological Parameters ◽  
South Of Brazil ◽  
Iron And Manganese

Abstract The Gravataí River basin, one of the main water sources of the metropolitan region of Porto Alegre, is among the ten most polluted rivers in Brazil. Water quality is monitored only through physico-chemical and microbiological parameters in Brazil, and in this context, considering the importance of the use of biomarkers in complementing the analysis of water, the present study aimed to evaluate the environmental quality of the main affluent of the Gravataí River, Demetrio stream, through physico-chemical, microbiological, and cytogenotoxic criteria, at the stream source (P1), whereas samples P2 and P3 were obtained from the upstream near the area with the highest urban density and the downstream near the meeting point with the Gravataí River, respectively. The results for copper concentration and color classified the Demetrio stream as Class 4 in general, that is, the water is suitable only for navigation and to landscape harmony. The main genotoxic alterations (micronuclei and nuclear buds) were observed in P2, in which were obtained the highest levels of copper, in addition to iron and manganese. Anthropic interventions were observed in P1 and P2; however, due to its low metal concentration, P3, near the Gravataí River, manifested an improvement in environmental quality.

scholarly journals Water Quality Assessment of Aflaj in the Mountains of Oman

2016 ◽  
Vol 6 (2) ◽  
pp. 99 ◽  
Author(s):  
Mohammed Saif Al-Kalbani ◽  
Martin F. Price ◽  
Mushtaque Ahmed ◽  
Asma Abahussain ◽  
Timothy O’Higgins
Keyword(s):  
Water Quality ◽  
Demand Management ◽  
Wastewater Reuse ◽  
Water Quality Assessment ◽  
Quality Parameters ◽  
Planning Decisions ◽  
Management Measures ◽  
Physico Chemical ◽  
Al Jabal Al Akhdar

<p class="1Body">The research was conducted to assess the <em>aflaj</em> water quality in Al Jabal Al Akhdar, Oman. 9 <em>aflaj</em> were sampled during summer and winter seasons in 2012-2013 to evaluate for the physico-chemical characteristics of major quality parameters; and assess the suitability of <em>aflaj</em> for irrigation purposes. Samples collection, handling and processing followed the standard methods recommended by the <em><em>American Public Health Association </em></em><em>and </em>analysed in quality assured laboratories using appropriate analytical methods and instrumental techniques. The quality parameters of the selected <em>aflaj</em> water indicated their suitability for irrigation as most of the quality parameters were within the permissible limits set by Omani regulations of wastewater reuse for irrigation. These selected water resources are excellent or good in quality for irrigation purposes based on the evaluation of different hazards parameters including the salinity-alkalinity hazards which indicate good to admissible water based on electrical conductivity and sodium adsorption classification; and water quality indices which reveal high or moderate classes, indicating the suitability of <em>aflaj</em> for irrigation of the majority of crops and soils. This study is a first comprehensive assessment towards providing indicators and classification indices on irrigation water quality of this fragile mountain ecosystem, which will be the basis for future planning decisions on agricultural demand management measures to protect these principal resources for agricultural production in Al Jabal Al Akhdar.</p>

scholarly journals Analisis Fisika-Kimia Air Sumur Di Tempat Pembuangan Akhir Sumompo Kecamatan Tuminting Manado

Jurnal MIPA ◽  
2015 ◽  
Vol 4 (2) ◽  
pp. 153
Author(s):  
Martin Aprilino Tambunan ◽  
Jemmy Abidjulu ◽  
Audy Wuntu
Keyword(s):  
Water Quality ◽  
Quality Standard ◽  
Physical Parameters ◽  
Chemical Parameters ◽  
Water Quality Standard ◽  
Maximum Value ◽  
Physico Chemical ◽  
Ph Range ◽  
Iron And Manganese

Telah dilakukan penelitian tentang kualitas fisika-kimia air sumur di tempat pembuangan akhir sampah (TPA) kecamatan Tuminting, Manado secara kualitatif dan kuantitatif. Kajian yang dilakukan meliputi parameter fisika yaitu penentuan pH, bau, rasa, warna, kekeruhan dan total padatan terlarut (TDT) serta parameter kimia yaitu penentuan nitrat, nitrit, klorida, sulfat, besi dan mangan. Berdasarkan hasil pengujian parameter fisika pada 4 titik pengambilan air ada beberapa titik pengambilan sampel yang tidak sesuai dengan syarat baku mutu kualitas air yaitu tidak berbau dan berasa serta memiliki rentang pH 6,5-9,2 dan memiliki nilai maksimal untuk warna 50, kekeruhan 25, dan TDT 1500. Begitu juga untuk parameter kimia ada beberapa titik pengambilan sampel yang tidak sesuai dengan syarat baku mutu kualitas air yaitu memiliki nilai maksimal untuk klorida 600 mg/L, nitrat 10 mg/L, nitrit 1 mg/L, besi 1 mg/L, mangan 0,5 m/L dan sulfat 400 mg/L.A research on the physico-chemical quality of the well water in the landfill (TPA) district Tuminting, Manado has been done. The study includedphysical parameters, namely pH, odor, taste, color, turbidity and total dissolved solids (TDS) and chemical parameters, namely nitrate, nitrite, chloride, sulphate, iron and manganese. Among the four sampling sites, some sites did not meet the water quality standard based on some physical parameters, those are odorless and tasteless, pH range of 6.5 to 9.2 and maximum value of 50 for color, 25 for turbidity, and 1500 for TDS. Likewise, for chemical parameters, several sampling points are not in accordance with the terms of water quality standard, those aremaximum value of 600 mg/Lfor chlorides, 10 mg/L for nitrate, 1 mg/L for nitrite, 1 mg/L for iron, 0.5 m/L for manganese and 400 mg/L for sulphate.

scholarly journals Water Quality Assessment of Keenjhar Lake, Thatta

2020 ◽  
Author(s):  
Mushtaq Ahmed Nizamani
Keyword(s):  
Water Quality ◽  
Water Quality Assessment ◽  
Industrial Area ◽  
Quality Parameters ◽  
Contamination Level ◽  
Untreated Wastewater ◽  
Physical Chemical ◽  
Microbiological Parameters ◽  
Pollutant Sources

Keenjhar Lake is the main source of drinking water for the metropolitan city of Karachi. The release of untreated wastewater from Kotri industrial area and other sources have made the lake water polluted. This study was subjected to determine the impacts of such pollutant sources on the water quality of Keenjhar Lake. The study involves the analysis of water quality parameters of Keenjhar Lake and its Feeding source (KB Feeder). The sampling sites were selected based on the sources of contamination. The water samples are tested for physical, chemical and microbiological parameters. The result of water analysis indicates the contamination level of the lake is quite alarming for the sites of Kotri effluent and WAPDA colony where Total Dissolved Solids (TDS), Chloride and other ionic metals were quite higher in concentration than other sites. These sites are also contaminated with Fluoride and Arsenic which are carcinogenic elements. The study reveals that the contamination level of feeding source is causing big non-reversible damage to the lake if continued to be uncontrolled. This contamination is mainly due to the release of toxic metals and ions in the KB feeder caused by human carelessness.

scholarly journals Water Quality Assessment of Some Selected Hatcheries at Shambhuganj Mymensingh

2019 ◽  
Vol 11 (1-2) ◽  
pp. 235-240
Author(s):  
MA Mou ◽  
R Khatun ◽  
MA Farukh
Keyword(s):  
Heavy Metals ◽  
Water Quality ◽  
Natural Resources ◽  
Water Quality Assessment ◽  
Permissible Limit ◽  
Fish Production ◽  
Chemical Parameters ◽  
Physico Chemical ◽  
Study Results

The study was conducted to investigate the physico-chemical parameters and heavy metals content of water in some selected hatcheries at Shambhuganj, Mymensingh. The water samples were collected from seven selected hatcheries during March to April 2019 to examine temperature, EC, TDS, DO, BOD, pH, ammonia, NO3 -, PO4 2- and heavy metals (Cr, Cd, Pb and Ni). The values of temperature, pH, DO, BOD, EC, TDS and ammonia were 28.5 °C, 7.9 to 8.4, 6.8 to 7.8 mg L-1, 0.1 to 0.9 mg L-1, 231.5 to 307.2 μS cm-1, 146 to 200 mg L-1 and 0.04 to o.06 mg L-1, respectively in the studied hatcheries. The NO3 - and PO4 2- content ranged from 0.48 to 0.68 mg L-1 and 0.45 to 0.63 mg L-1, respectively. Among the heavy metals, Pb was found in 5 hatcheries but the values were within the permissible limit. Other heavy metals (Cr, Cd and Ni) were not found in the studied hatcheries. The fish production of the selected hatcheries ranged from 4 to 9 metric ton. The study results revealed that all of the investigated parameters were within the permissible limit and water quality of selected hatcheries was suitable for fish culture. J. Environ. Sci. & Natural Resources, 11(1-2): 235-240 2018

scholarly journals The influence of fish culture in floating net cages on microbial indicators of water quality

2013 ◽  
Vol 73 (3) ◽  
pp. 457-463 ◽  
Author(s):  
K. Gorlach-Lira ◽  
C. Pacheco ◽  
L.C.T. Carvalho ◽  
H.N. Melo Júnior ◽  
M.C. Crispim
Keyword(s):  
Water Quality ◽  
Fish Culture ◽  
E Coli ◽  
Physico Chemical ◽  
Fecal Streptococci ◽  
Microbiological Parameters ◽  
Thermotolerant Coliforms ◽  
Net Cages ◽  
Culture Site

This work was carried out to analyse the microbiological parameters of the water quality of a reservoir used for the irrigation and culture of tilapia (Oreochromis niloticus) in floating net cages. The physico-chemical parameters, counts of mesophilic total aerobic bacteria, total and thermotolerant coliforms and fecal streptococci, and the presence of Escherichia coli in samples of water collected in three sites of the reservoir (pre-culture site, culture site, post-culture site) were analysed. The levels of ammonia (0.047-0.059 mg/L), nitrite (0.001-0.021 mg/L) and total phosphorus (0.050-0.355 mg/L) in the water did not show significant differences (p > 0.05) between sampling sites. The levels of total bacteria in the water varied between 1.3 x 104 and 67.3 x 104 CFU/100 mL. The MPN values of thermotolerant coliforms (< 930 MPN/100 mL) were within values recommended for water used for fish culture and/or irrigation. The presence of E. coli and fecal streptococci were verified in 48% and 56% of analysed samples, respectively. The site with floating net cages showed more samples contaminated with E. coli and fecal streptococci than other sampling points.

scholarly journals Integrated analysis of water quality from two rivers used for public supply in southern Brazil

2017 ◽  
Vol 29 (0) ◽  
Author(s):  
Flávia Bernardo Chagas ◽  
Camila Fátima Rutkoski ◽  
Gregori Betiato Bieniek ◽  
Gean Delise Leal Pasquali Vargas ◽  
Paulo Afonso Hartmann ◽  
...  
Keyword(s):  
Water Quality ◽  
Biotic Index ◽  
Integrated Analysis ◽  
Human Consumption ◽  
Public Supply ◽  
Microbiological Parameters ◽  
South Of Brazil ◽  
Reduced Water ◽  
Surber Sampler

Abstract: Aim This study aimed to evaluate the water quality of streams that are used for public supply, through an integrated analysis using a biotic index, as well as physicochemical and microbiological parameters. Methods The data were obtained monthly, from November 2014 to April 2015, at eight locations in two rivers in the south of Brazil. The landscape is predominantly rural, with the occurrence of small reforested areas, as well as yerba mate and grape cultivations. Macroinvertebrate samples were collected monthly using a Surber sampler. Water temperature and dissolved oxygen concentration were measured in the field using a portable oximeter. The following parameters were measured in the laboratory: pH, Turbidity, BOD, Conductivity and Nitrate. Results The evaluation carried out in the rivers revealed good water quality, but some sample sites presented reduced water quality. The waters of the Leãozinho River were classified as doubtful at site 1 and as good at sites 2, 3 and 4. Ligeirinho River presented an acceptable rating at sites 1 and 4 and was classified as good at sites 2 and 3. The BMWP’ index was significantly correlated with the abundance of macroinvertebrates, EPT richness and BOD. The abundance and richness of macroinvertebrates in Leãozinho and Ligeirinho Rivers were associated with the physical, chemical and microbiological parameters. Conclusion This study reinforces the importance of biomonitoring in the evaluation of water quality for human consumption, considering that environmental management and monitoring practices should integrate physicochemical, microbiological and biological parameters.

Changes of microbial indices of water quality in the Vistula and Brda rivers as a result of sewage treatment plant operation

2008 ◽  
Vol 37 (2) ◽  
Author(s):  
Maciej Walczak
Keyword(s):  
Water Quality ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Sewage Treatment Plants ◽  
Plant Operation ◽  
Treated Sewage ◽  
Microbiological Parameters ◽  
Microbial Indices

Changes of microbial indices of water quality in the Vistula and Brda rivers as a result of sewage treatment plant operationThis paper reports the results of studies of microbiological changes in the water quality of the Vistula and Brda rivers after the opening of sewage treatment plants in Bydgoszcz. The study involved determining the microbiological parameters of water quality. Based on the results obtained, it was found that the quality of the water in both rivers had improved decidedly after the opening of the plants, although an increased number of individual groups of microorganisms was found at the treated sewage outlet from one of the plants.

STUDI PERBANDINGAN KUALITAS AIR BERSIH DALAM KAITANYA DENGAN AKTIVITAS MASYARAKAT DI SEKITAR SUMBER AIR PADA DESA WAINITU, BATUMERAH, AMAHUSU, DAN HALONG

2017 ◽  
Vol 13 (2) ◽  
pp. 111-119
Author(s):  
Lela Uyara ◽  
Pieter Kunu ◽  
Silwanus M Talakua
Keyword(s):  
Water Quality ◽  
Quality Standard ◽  
Total Coliform ◽  
Quality Analysis ◽  
Clean Water ◽  
Water Quality Analysis ◽  
E Coli ◽  
Microbiological Parameters ◽  
Standard Quality

The study aims to determine the quality of clean water in the villages of Wainitu, Batumerah, Amahusu and Halong by comparing the result of water quality analysis with water quality standard. Water quality analysis includes Physiscal, Chemical, and Microbiological parameters. This research uses descriptive method, this method describes systematics, accurate about facts and characteristic of the quality of clean water of each research location. The results showed that the source of clean water in the village of Batumerah did not meet the standard of clean water quality standards indicated by the number of E. coli and the high total coliform.  Keywords: standard quality of clean water, water quality, Wainitu, Batumerah, Amahusu and Halong villages   ABSTRAK Penelitian yang bertujuan untuk menetapkan kualitas air bersih di Desa Wainitu, Batumerah, Amahusu dan Halong, dengan membandingkan hasil analisis kualitas air dengan standar baku mutu air bersih. Analisis kualitas air meliputi parameter fisika, kimia dan mikrobiologi. Penelitian ini menggunakan metode deskriptif; metode ini menggambarkan sicara sistematis, akurat, fakta dan karakteristik mengenai kualitas air bersih di masing-masing lokasi penelitian. Hasil penelitian menunjukkan bahwa sumber air bersih di Desa Batumerah tidak memenuhi standar baku mutu air bersih yang ditunjukkan oleh jumlah E. coli dan total Koliform yang tinggi. Kata Kunci: baku mutu air bersih, Desa Wainitu, Batumerah, Amahusu dan Halong, kualitas air

QUALIDADE DAS ÁGUAS E NÍVEL TRÓFICO DA BACIA DO RIO PACIÊNCIA NA ILHA DO MARANHÃO, BRASIL

2019 ◽  
Vol 21 (2) ◽  
pp. 437-453
Author(s):  
Elna Lucilia Santos Corrêa ◽  
Karina Suzana Feitosa Pinheiro ◽  
Cláudio José Da Silva de Sousa ◽  
Luiz Jorge Bezerra da Silva Dias
Keyword(s):  
Water Quality ◽  
Trophic Status ◽  
The Body ◽  
Chemical Parameters ◽  
Public Supply ◽  
Physico Chemical ◽  
Great Availability ◽  
Del Rio ◽  
Fluvial Environments

O Brasil apresenta grande disponibilidade de água doce em seus mananciais. Fazendo parte desse recurso encontra-se, o rio Paciência, localizado na Ilha do Maranhão destacado pela sua importância local, principalmente por contribuir com suas águas para recarga dos mananciais subterrâneos, fonte de abastecimento público de vários bairros de São Luís, capital do estado. No entanto, este rio vem sofrendo comprometimento da qualidade de suas águas, consequência do processo de uso e ocupação dos espaços em sua bacia. Destacando-se como um dos principais problemas relacionados a qualidade de ambientes fluviais,  a eutrofização, que consiste no processo em que o corpo d’água adquire elevados níveis de nutrientes (fosfatos e nitratos), é um indicador determinante da qualidade da água. Neste sentido, o objetivo deste trabalho foi caracterizar a qualidade da água e do estado trófico na bacia hidrográfica do rio Paciência atráves dos parâmetros fisico-químico evidenciando os trechos mais comprometidos conforme os valores alcançados nas análises. Os resultados das análises foram comparados com a CONAMA No. 357/05 que indicaram uma situação preocupante quanto à qualidade da água no local de estudo.Palavras-chave: Qualidade de água; Eutrofização; Ilha do Maranhão. ABSTRACTThe Brazil has great availability of fresh water in its springs. Within these contexts, the Paciência River, located on the Island of Maranhão stands out for its local importance, mainly for contributing its waters to the recharge of the underground springs, source of public supply of several districts of São Luís, capital of the state. However, this river has been compromising the quality of its waters, a consequence of the process of use and occupation of the spaces in its basin. Highlighting as one of the main problems related to the quality of fluvial environments, eutrophication, which consists of the process in which the body of water acquires high levels of nutrients (phosphates and nitrates), is a determinant indicator of water quality. In this sense, the objective of this work was to characterize the water quality and trophic status in the Paciência river basin through the physico-chemical parameters, showing the most compromised stretches according to the values reached in the analyzes. The results of the analyzes were compared with CONAMA No. 357/05 which indicated a worrying situation regarding the quality of the water at the place of study.Keywords: Water quality; Eutrophication; Island of Maranhão. RESUMENBrasil tiene gran disponibilidad de agua dulce en sus manantiales. Parte de este recurso es el río Paciencia, ubicado en la isla de Maranhão, que destaca por su importancia local, principalmente porque contribuye con sus aguas a recargar las fuentes subterráneas, fuente de suministro público de varios barrios de São Luís, capital del estado. Sin embargo, este río se ha visto afectado por la calidad de sus aguas, como consecuencia del proceso de uso y ocupación de los espacios en su cuenca. Destacando como uno de los principales problemas relacionados con la calidad de los ambientes fluviales, la eutrofización, que consiste en el proceso en el que el cuerpo de agua adquiere altos niveles de nutrientes (fosfatos y nitratos), es un indicador determinante de la calidad del agua. En este sentido, el objetivo de este trabajo fue caracterizar la calidad del agua y el estado trófico en la cuenca del río Paciência a través de los parámetros fisicoquímicos, mostrando las secciones más comprometidas de acuerdo con los valores alcanzados en los análisis. Los resultados de los análisis se compararon con CONAMA N°. 357/05, que indicó una situación preocupante con respecto a la calidad del agua en el sitio de estudio.Palabras clave: Calidad del agua; Eutrofización, Isla Maranhão.

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