نتایج جستجو برای: شاخص wqi

تعداد نتایج: 74972  

Journal: :Sustainability 2022

Water quality index (WQI) is the primary method applied to characterize water in world. The current study employed statistical analysis and multilayer perceptron (MLP) approaches for predicting groundwater Ghiss-Nekkor aquifer, northeast of Al Hoceima, Morocco. Fifty sampled were identified analyzed major anions cations throughout May 2019. Several physicochemical parameters all samples this in...

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...

The aim of this study was to assess the potential impact of Trout farm effluents on water quality of Zaringol stream based on NSFWQI and WQI indexes. Some physicochemical water quality parameters were measured from 14 point during December 2009 to September 2010 seasonality. The average value of NSFWQI is 53.21 and it shows spatial and temporal variation. The maximum value or best water quality...

The concentrations of toxic effluents released into freshwater aquatic environments are increasing day by day and affect the aquatic biota. The present study outlined the evaluation of physicochemical parameters such as water temperature, pH, dissolved oxygen (DO), biological oxygen demand (BOD), chemical oxygen demand (COD), phosphates (PO42--P), nitrates (NO3--N), electrical conductivity (EC)...

Journal: :Marine pollution bulletin 2008
M Leopoldina Aguirre-Macedo Victor M Vidal-Martinez Jorge A Herrera-Silveira David S Valdés-Lozano Miguel Herrera-Rodríguez Miguel A Olvera-Novoa

The discharge of nutrients, phytoplankton and pathogenic bacteria through ballast water may threaten the Cayo Arcas reef system. To assess this threat, the quality of ballast water and presence of coral reef pathogenic bacteria in 30 oil tankers loaded at the PEMEX Cayo Arcas crude oil terminal were determined. The water transported in the ships originated from coastal, oceanic or riverine regi...

Journal: :H2Open journal 2022

Abstract This study considered three different water quality indices (WQIs) for groundwater data collected from the middle-west part of Bangladesh, and quantitative results were justified with globally accepted guidelines. It compared between Canadian WQI Weighted Average WQI, Mierels drinking irrigation purposes, respectively. The revealed that method categorized as ‘fair’ while model showed ‘...

Journal: :Journal of Freshwater Ecology 2023

This is the first comprehensive examination of Turyanchay River in Azerbaijan, focusing on water quality (WQ), contamination, and biodiversity at four different locations: Gabala, Agdash, Udjar Zardab. The study analysed nutrient (nitrate, ammonium, phosphate) metal/metalloid (Pb, Cu, Ni, Zn, Mn, Cr, Cd, Fe Al) contamination levels, as well diversity macrozoobenthos river, birds vegetation. che...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده مهندسی 1393

رودخانه های شاپور و دالکی به ترتیب از ارتفاعات جنوبی دشت برم و جنوب غربی دشت شوراب سرچشمه می گیرند و سپس در 10 کیلومتری شمال غرب برازجان به همدیگر متصل شده و رودخانه حله را تشکیل می دهند، این رودخانه نیز پس از امتداد در جهت شرق به غرب و سپس به سمت جنوب، نهایتا به خلیج فارس می ریزد. از آب این رودخانه ها جهت کشاورزی در روستاهای مجاور، تامین منابع آب شرب و تامین آب برخی از صنایع استفاده می شود. اح...

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