نتایج جستجو برای: water quality index

تعداد نتایج: 1596013  

Journal: :Japan journal of water pollution research 1987

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, ...

Journal: :international journal of environmental research 2009
a. bhatnagar p. sangwan

one of the sacred water tank brahmsarovar, at kurukshetra in india was studied to assess the impact of mass bathing during new moon day (called as amavasya in india) in terms of physico-chemical and biological characteristics. overall water quality index was calculated using online calculator. results have revealed significant (p

Journal: :East African journal of science, technology and innovation 2022

Water quality assessment has become a very essential scientific procedure for qualifying water drinking and general purpose use, better public health policy on clean supply. Various tools have been employed to determine the status of systems drinking, industrial use. For this study, index (WQI) recently developed pollution (WPI) adopted evaluate Molo basin. The world organization (WHO) defined ...

Journal: :journal of agricultural science and technology 2013
h. chu w. lu l. zhang

water quality assessment provides a scientific basis for water resources development and management. this case study proposes a factor analysis- hopfield neural network model (fhnn) based on factor analysis method and hopfield neural network method. the results showed that the factor analysis (fa) technique was introduced to identify important water quality parameters. results revealed that bio...

ملکوتیان, محمد , مومنی, جمشید ,

    Background and Objectives: Access to safe and adequate drinking water has been an important national goal in different countries. On the other hand, the possibility of microbial contamination and lack of control water quality chemicals is of concern to health authorities in societies. The purpose of this research was to determine the microbial and chemical quality of drinking water in bards...

Abdolrahim Yusefzadeh, Ameneh Yusefzadeh, Edris Hoseinzadeh, Ghodratola Khorramabadi Shams, Hatam Godini, Mohammad Khoshgoftar,

Background & Aims of the Study: The use of qualitative indicators is one of the ways of water quality of river water. The purpose of this study is Khorramrood River of Khorramabad of water quality using water quality index (NSFWQI) and GIS that is a Geographic Information System . Materials & Methods: In this cross-sectional study, qualitative parameters needed to calculate NSFW...

ژورنال: بوم شناسی آبزیان 2016
Ebrahimi, Eisa , Esmaeili, Alireza , Fathi, Pejman , Mirghafari, Norolah ,

In order to investigation of water quality of the Choghakhor wetland by use of WQI, ten stations were selected. Sampling was done every 45 days since April 2010 until March 2011 with 3 replications at each station. Water Quality Index (WQI) was calculated using nine water quality parameters (Nitrate, Nitrite, Alkalinity, Hardness, Turbidity, Conductivity, Dissolved Oxygen, pH and Biochemical Ox...

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