نتایج جستجو برای: water quality pollution indices
تعداد نتایج: 1372716 فیلتر نتایج به سال:
Multivariate statistical methods including cluster analysis (CA), discriminant analysis (DA) and component analysis/factor analysis (PCA/FA), were applied to explore the surface water quality datasets including 14 parameters at 28 sites of the Eastern Poyang Lake Basin, Jiangxi Province of China, from January 2012 to April 2015, characterize spatiotemporal variation in pollution and identify po...
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This analysis applied systematic review as a methodology for identifying, analyzing and interpreting data on the use of water quality indices human consumption. Scientific articles were searched in “PubMed”, “Scielo”, “ScienceDirect” “Web Science" databases, using keywords “drinking water” “water index”, with custom interval between 2000 2020. The results indicated 82,573 published articles, 16...
Introduction & Objective: Rivers are one of the main water supply resources for various uses such as agricultural, industrial and drinking purposes. As population and consumption increase, monitoring of rivers water quality becomes an important function of environmental management field. Because Darreh-Morad Beyg river of Hamadan is a water supply for different purposes and many pollutants ar...
Nonpoint source (NPS) pollution is a major surface water contaminant commonly caused by agricultural runoff. The purpose of this study was to assess seasonal variation in water quality parameters in Gorganrood watershed (Golestan Province, Iran). It also tried to clarify the effects of agricultural practices and NPS pollution on them. Water quality parameters including potassium, sodium, pH, wa...
Water is supplied to greater than 95% of Japan, and emphasis is changing to from quantity to quality. As water pollution increases with the advancing industrial age and changes in life-styles, a safer and higher quality supply of city water is desired. In the Special Measures Act and the Work Promotion Act enacted in 1994, the Ministry of Health and Welfare and the Environment Agency stressed t...
Water and sediment samples were collected from six different stations, located along the Nil River between February and June 2015. Concentrations of cadmium, lead, zinc, and copper were determined. The extent of the sediment pollution was assessed, using the multiple pollution indices, namely contamination factor (CF), pollution load index (PLI), and the geoaccumulation index (Igeo). The result...
Background & Aims of the Study: Water resources are useful or potentially useful. Uses of water are included agricultural, industrial, household, recreational and environmental activities. The majority of human uses require fresh water. Rivers are parts of this fresh water that play a very important role in the water cycle, acting as drainage channels for surface water. Hence, ...
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