Application of modified water quality indices as indicators to assess the spatial and temporal trends of water quality in the Dongjiang River

Sun, Wei; Xia, Chunyu; Xu, Meiying; Guo, Jun; Sun, Guoping

doi:10.1016/j.ecolind.2016.01.054

Cited by 195 publications

(91 citation statements)

References 16 publications

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“…Un paso importante en el diseño de un índice es la selección de sus parámetros o variables (Rangeti et al, 2015;Sutadian et al, 2016;Hou et al, 2016Sun et al, 2016. Sin embargos, muchas veces no se hace de manera objetiva como en el caso de estas investigaciones citadas aquí que no han considerado los CF como parámetro del índice, lo que es inaceptable desde todo punto de vista, especialmente cuando se trata de evaluar la calidad del agua para consumo humano.…”

Section: Uso Recreativounclassified

“…Para uso agrícola predominó clase 3-aceptable y para la recreación no hubo coincidencia Análisis Comparativo de Índices de Calidad del Agua Aplicados al Río Ranchería, La Guajira Pérez de clase pero la recomendación es no usarse para contacto directo sin tratamiento previo. Los CF, oxígeno disuelto y turbidez son los parámetros que más afectan, derivado de los procesos antrópicos desarrollados en la cuenca como ha sucedido en otras investigaciones (Massoud, 2012;Sun et al, 2016;Misaghi et al, 2017). Estos resultados fueron entregados a entidad competente para que planifique de manera más adecuada los usos posibles del río Ranchería.…”

Section: Discusión Finalunclassified

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Análisis Comparativo de Índices de Calidad del Agua Aplicados al Río Ranchería, La Guajira-Colombia

Pérez

Nardini²,

Galindo

2018

Inf. tecnol.

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_____________________________________________________________________________________________________________________________________ ResumenEste artículo compara diversos índices de calidad del agua (ICA) aplicados en 235,3 km del río Ranchería, La Guajira-Colombia. La comparación de los ICA se realizó directamente con los valores numéricos de los índices discretizados en cinco rangos iguales (índices brutos) y con sus calificaciones, es decir los juicios ambientales (también en cinco clases) asociados a esos valores. La coherencia entre parejas de índices se analizó en ambos casos con el coeficiente de correlación de Spearman y la raíz del error cuadrático medio (RMSE). Se obtuvo mayor coincidencia, mejor correlación y menores desviaciones en el caso de los índices brutos. Este hecho evidencia la carencia de la relación entre los valores de los índices y su calificación. Se determina por tanto la necesidad de llevar a cabo un ejercicio de intercalibración para asegurar la coherencia entre los distintos índices. Palabras AbstractThis paper compares several water quality indices applied along 235.3 km of the river Ranchería, La Guajira-Colombia. The comparison directly adopts the values of the indices discretized in five equal intervals (raw indices), and, on their scoring, this is the environmental judgments (also in five classes) associated with such indices. The coincidence between couples of indices is analyzed, in both cases, through the correlation coefficient of Spearman and the Root Mean Square Error (RMSE). The results state that raw indices perform higher coincidence, better correlation and lesser deviations than do scorings. This fact stresses the weakness of the relation between the value of the indices and their qualification. It is necessary to carry out an intercalibration exercise in order to consistently gear the different indices.

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Section: Uso Recreativounclassified

Section: Discusión Finalunclassified

Análisis Comparativo de Índices de Calidad del Agua Aplicados al Río Ranchería, La Guajira-Colombia

Pérez

Nardini²,

Galindo

2018

Inf. tecnol.

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“…Water quality index (WQI) has been extensively applied to monitor water quality in recent years, and is indeed a practical method considering critical environmental variables, which represent the pollution conditions of a water body [15,[59][60][61] . It depicts the composite influence of different water quality parameters [24] .…”

Section: Assessment Methods Of Surface Watermentioning

confidence: 99%

Hydrochemical Characteristics and Water Quality Assessment of Surface Water at Xiahe County in Tibetan Plateau Pastoral of China

Zhang

Wang

Yousaf

et al. 2016

Preprint

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Water quality assessment in pastoral of Tibetan Plateau, which is water sources for about 40% of world's population and the runoff-yield area of Yellow rivers, is very important. In this paper, Xiahe county which belongs to Tibetan Plateau pastoral was investigated. Six parameters(via, chloride, COD, ammonia nitrogen, nitrate, fluoride, sulfate) were selected to assess the water quality and health degree by using fuzzy comprehensive evaluation methods. The hydrochemical type in surface water was of HCO3 --Mg 2+ -C a2+ type. The cations and anions in surface water were mainly from weathering and dissolution of carbonate rock. Results showed that the water quality in all 69 sampling sites was all of class Ⅰ. The integrated health degree reached more than 0.85 and the health rate were 100%. Although ammonia nitrogen was regarded as the main contamination factor, but it had a little effect on the entire body of water. Overall, the surface water qualities of most samples in Xiahe County was good condition.

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“…There is an abundance of studies worldwide that are related to the physico-chemical characteristics of freshwater (Hu et al 2008;Lermontov et al 2009;Rajendran & Mansiya 2015;Sharma et al 2015;Sun et al 2016;Wong & Hu 2013). In Malaysia, the lake and river water systems are treated as a source of freshwater.…”

Section: Introductionmentioning

confidence: 99%

Effectiveness of Lake Remediation towards Water Quality: Application in Varsity Lake, University of Malaya, Kuala Lumpur

Mood¹,

Othman²,

Amin³

et al. 2017

JSM

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Application of modified water quality indices as indicators to assess the spatial and temporal trends of water quality in the Dongjiang River

Cited by 195 publications

References 16 publications

Análisis Comparativo de Índices de Calidad del Agua Aplicados al Río Ranchería, La Guajira-Colombia

Análisis Comparativo de Índices de Calidad del Agua Aplicados al Río Ranchería, La Guajira-Colombia

Hydrochemical Characteristics and Water Quality Assessment of Surface Water at Xiahe County in Tibetan Plateau Pastoral of China

Effectiveness of Lake Remediation towards Water Quality: Application in Varsity Lake, University of Malaya, Kuala Lumpur

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