نتایج جستجو برای: ccme water quality index

تعداد نتایج: 1596075  

2016
John Palowitch Shankar Bhamidi Andrew B. Nobel

Community detection is the process of grouping strongly connected nodes in a net-work. Many community detection methods for un-weighted networks have a theoreticalbasis in a null model, which provides an interpretation of resulting communities in termsof statistical significance. In this paper, we introduce a null for sparse weighted networkscalled the continuous configurati...

Journal: :آب و خاک 0
حجت امامی امیر لکزیان مهدی مهاجرپور

abstract different definitions have been proposed for soil quality. various soil properties have been suggetsted as soil quality indices by researchers. this research was conducted to study the relationship between slope of retention curve at its inflection point (s index) and other soil physical quality indices, because the reserches between s index and soil physical properties are little. thi...

ژورنال: سلامت و محیط زیست 2018

Background and Objective: Water quality assessment is an important step for optimal and proper use of water resources for drinking and selection of suitable and consistent water quality patterns. Therefore, the necessity of studying water quality characteristics in water resource management programs has been highly considered. Materials and Methods: In this study, the hydrogeochemical quality ...

حسین زاده, ادریس, رحمانی, علیرضا, رحیمی, ناصر, عزتی, لیلا,

Background and purpose: Using Water Quality Indices are necessary for monitoring the quality of water in various applications, including agriculture. This study aimed to assess the quality of Takab Sarugh river right branch by WILCOX index. Materials and methods: In this cross sectional study some quality parameters including water temperature, sodium, calcium, magnesium, total hardness, pH, e...

حسین‌زاده , ادریس , حسین‌زاده, سامان, خرسندی , حسن , رحیمی, ناصر, علیپور, مهدی,

    Background & Aims : Water Quality Indices are one of the methods can be used in water quality management as a useful tool in decision making, so this study carried out on evaluating the quality of the Aydughmush river by National Sanitation Foundation Water quality (NSFWQI) and River Pollution Indices (Liou).   Materials & Methods : In this cross sectional study standard field parameters in...

ژورنال: سلامت و محیط زیست 2011
اکبرزاده, عباس, جعفری, فاطمه, فرمن اصغرزاده, دیانا, نوری, روح‌اله,

Backgrounds and Objectives: The Atrak River is an important water supply resource in the Razavi Khorasan, Northern Khorasan and Golestan provinces. This river is the line border of Iran and Turkistan countries. Unfortunately, lack of water quality and quantity data due to nonexistence of a proper surface water quality monitoring station network is one of the main problems for water quality eval...

Eslami, H., Esmaeili, A., Esmaeili, M., Mobini, M., Tajik, R.,

  Background and Objectives In recent years, excessive use of groundwater resources and the discharge of urban and industrial wastewater in the environment has contaminated and reduced the quality of groundwater resources. The aim of this study was to determine the quality of drinking water resources in Rafsanjan city using water quality index (WQI) in 2018. Materials and Methods: This descri...

Journal: :تحقیقات نظام سلامت 0
افشین ابراهیمی - استادیار، مرکز تحقیقات محیط زیست، دانشکده بهداشت، دانشگاه علوم پزشکی اصفهان، اصفهان بهرام کمره ئی مربی، گروه مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی لرستان، خرم آباد، ایران. قربان عسگری استادیار، گروه مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی همدان، همدان، ایران. عبدالمطلب صیدمحمدی استادیار، گروه مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی همدان، همدان، ایران قدرت اله روشنائی استادیار، گروه آمار زیستی دانشکده بهداشت دانشگاه علوم پزشکی همدان، همدان، ایران

background: corrosivity is one of the factors affecting the water quality. not controlling the chemical quality of water in the distribution network causes corrosion, sedimentation and economical and health damages. the aim of this study was to determine the drinking water corrosivity and sediment of kuhdasht, iran by using the corrosivity index. methods: in this study, 12 predetermined areas l...

In this study, the quality of groundwater aquifer of Gavkhooni basin was investigated in agriculture. For this purpose, water quality data related to 96 wells prepared by Isfahan Regional Water Authority during the statistical period 2015-2016 were used. In this study, sodium parameters, electrical conductivity, chloride, hydrogen bicarbonate and sodium absorption ratio (SAR) were used. Then, g...

This study was conducted with the aim of providing a remotely sensed water quality index in Assaluyeh port using remote sensing technology. so, according to the region conditions, studying of scientific resources and access to satellite data, the parameters of heavy­metals, dissolved ions, SST, chlorophyll-a and pH were selected. Then, by reviewing sources, the product MYD091km, MYD021km, MOD02...

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