Investigations of Physico-Chemical Parameters and its Pollution Implications of Elala River, Mekelle, Tigray, Ethiopia

Gebreyohannes, Ftsum; Gebrekidan, Abraha; Hedera, Amanuel; Estifanos, Samuael

doi:10.4314/mejs.v7i2.7

Cited by 29 publications

(38 citation statements)

References 10 publications

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“…Assessment of the physicochemical properties of the water and sediment is also very important because these quality parameters are capable of affecting the biological characteristics of the environmental matrices and are the basis for judging the suitability of such water body for its designated uses [10–12]. Although some of these parameters may have limited health significance, international standards necessitate their determination [13].…”

Section: Introductionmentioning

confidence: 99%

Petroleum Hydrocarbon Fingerprints of Water and Sediment Samples of Buffalo River Estuary in the Eastern Cape Province, South Africa

Adeniji

Okoh

2017

Journal of Analytical Methods in Chemistry

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Petroleum hydrocarbon status of the Buffalo River Estuary in East London, South Africa, was evaluated from January to May, 2016. Surface water and sediment samples were collected from five points in the estuary and extracted using standard methods. The extracts were subsequently analyzed by gas chromatography-flame ionization detection. Results showed that total petroleum hydrocarbon (TPH) varied from 7.65 to 477 μg/L in the water and 12.59 to 1,100 mg/kg in the sediments, with mean values of 146.50 ± 27.96 μg/L and 209.81 ± 63.82 mg/kg, respectively. Concentrations of TPH in the sediments correlated significantly with organic carbon (OC) in both seasons. TPH and OC levels were slightly lower in summer than in autumn in the two environmental matrices, and the average amount of TPH in the water samples collected from all the sampling stations was generally lower than the EU standard limit of 300 μg/L. However, the levels in the sediments exceeded the EGASPIN target value (50 mg/kg) for mineral oil but were below the intervention value (5,000 mg/kg), indicating a serious impact of industrial growth and urbanization on the area, although the n-alkane ratios and indexes used for source tracking revealed excessive flow from both natural and anthropogenic sources.

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Section: Introductionmentioning

confidence: 99%

Petroleum Hydrocarbon Fingerprints of Water and Sediment Samples of Buffalo River Estuary in the Eastern Cape Province, South Africa

Adeniji

Okoh

2017

Journal of Analytical Methods in Chemistry

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“…In regards to S2, Group 1 was composed of: Hardness, EC, TDS; Group 2: As and pH; Group 3: Turbidity and ORP; and Group 4: Temperature. Gebreyohannes et al [68] determined in their area of study that TDS, Hardness and EC were positively associated and these were negatively associated with pH and Turbidity. The comparison plots of PC1 vs. PC2 in each sample indicate the displacement through components 1 and 2.…”

Section: Principal Components Analysis (Pca)mentioning

confidence: 99%

Multivariate and Spatial Analysis of Physicochemical Parameters in an Irrigation District, Chihuahua, Mexico

Prieto‐Amparán

Rocha-Gutiérrez

Ballinas-Casarrubias

et al. 2018

Water

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Water quality is relevant due to the complexity of the interaction of physicochemical and biological parameters. The Irrigation District 005 (ID005) is one of the most important agricultural region in Chihuahua, México; for that reason, it was proposed to investigate the water quality of the site. Water samples were collected in two periods: Summer (S1) and Fall (S2). The samples were taken from 65 wells in S1, and 54 wells in S2. Physicochemical parameters (PhP) such as Arsenic (As), Temperature, Electrical Conductivity (EC), Oxide Reduction Potential (ORP), Hardness, pH, Total Dissolved Solids (TDS), and Turbidity were analyzed. The data were subjected to statistical principal component analysis (PCA), cluster analysis (CA) and spatial variability tests. In both seasons, the TDS exceeded the Mexican maximum permissible level (MPL) (35% S1, 39% S2). Turbidity exceeded the MPL in S1 (29%) and in S2 (12%). Arsenic was above the MPL for water of agricultural use in 9% (S1) and 13% (S2) of the wells. The PCA results suggested that most variations in water quality in S1 were due to As, pH and Temperature, followed by EC, TDS and Hardness; while in S2 to EC, TDS and Hardness, followed by As and pH.

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“…La dureza en todos los pozos se encuentra por debajo de 75 mg/L lo que clasifica como agua suave (Gebreyohannes et al 2015), esto significa que el agua tiene alta capacidad de amortiguamiento, por lo que no puede generar tuberías corroídas y con ello contaminación externa del agua (Arain et al 2014). Un agua dura se considera no adecuada para uso industrial y agrícola (Patil et al 2012).…”

Section: Nitratos Sodio Dureza Alcalinidadunclassified

“…Los SDT altos pueden generar el aumento en la salinidad o cambios en la composición del agua (Gebreyohannes et al 2015). Asimismo, la CE en aguas naturales está influenciada por las sales disueltas, tales como cloruro sódico y cloruro potásico (Arain et al 2014).…”

Section: Nitratos Sodio Dureza Alcalinidadunclassified

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Calidad Del Agua Para Riego en Una Zona Nogalera Del Estado De Chihuahua

Valles-Aragón

Barrios

Prieto

et al. 2017

Rev. Int. Contam. Ambie.

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Palabras clave: Carya illinoinensis, metales, pH, nitratos, calidad del agua RESUMEN El cultivo de nogal pecanero es muy importante por su impacto económico en la región norte de México. La aplicación de agua en las huertas proveniente de pozos agrícolas con alto contenido de sales propicia su acumulación en el suelo, dificultando su movilidad hacia las raíces de los árboles. Con el propósito de analizar químicamente la composición del agua de riego en la región nogalera del sur de Chihuahua y contrastarla con las normas mexicanas vigentes se realiza la siguiente investigación. El muestreo se llevó a cabo el 25 de junio del 2014, se seleccionaron 10 huertas de nogal pecanero del sur del estado de Chihuahua y se tomó una muestra de agua de cada pozo. Los parámetros analizados fueron pH, cloruros, Fe, Mn, Zn, Cu, As, B, Pb, Cd, Ni, Na, sólidos disueltos totales, nitratos, dureza y alcalinidad, relación de absorción de sodio y conductividad eléctrica (CE). Para uso y consumo humano se consideró la Norma Oficial Mexicana 127, mientras que para riego agrícola se utilizó la Ley Federal de Derechos y Disposiciones Aplicables en Materia de Aguas Nacionales. Se obtuvieron valores dentro de los parámetros establecidos tanto para agua de consumo humano como en agua de riego en el sur del estado de Chihuahua, siendo dicha agua de buena calidad. Sin embargo, se sugiere tener un monitoreo periódico de las concentraciones de Pb, Ni, As, B y CE para evitar afectar a la población humana de comunidades circundantes en la región, así como impactos negativos en la actividad agrícola.Key words: Carya illinoinensis, metalles, pH, nitrates, water quality ABSTRACT Cultivation of pecan nuts is very important for the economic impact in the northern region of Mexico. The application of water in the orchards from agricultural wells with high salt content, promotes their accumulation in the soil, hindering their mobility to tree roots. In order to chemically analyze the composition of water irrigation in the pecan-producing Rev.

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Investigations of Physico-Chemical Parameters and its Pollution Implications of Elala River, Mekelle, Tigray, Ethiopia

Cited by 29 publications

References 10 publications

Petroleum Hydrocarbon Fingerprints of Water and Sediment Samples of Buffalo River Estuary in the Eastern Cape Province, South Africa

Petroleum Hydrocarbon Fingerprints of Water and Sediment Samples of Buffalo River Estuary in the Eastern Cape Province, South Africa

Multivariate and Spatial Analysis of Physicochemical Parameters in an Irrigation District, Chihuahua, Mexico

Calidad Del Agua Para Riego en Una Zona Nogalera Del Estado De Chihuahua

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