نتایج جستجو برای: water quality pollution indices

تعداد نتایج: 1372716  

2016
Izabela A. Talalaj Pawel Biedka

The purpose of the paper is to assess the groundwater quality near the landfill sites using landfill water pollution index (LWPI). In order to investigate the scale of groundwater contamination, three landfills (E, H and S) in different stages of their operation were taken into analysis. Samples of groundwater in the vicinity of studied landfills were collected four times each year in the perio...

2014
Manon Lainé Soizic Morin Juliette Tison-Rosebery

The River Luzou flows through a sandy substrate in the South West of France. According to the results of two assessment surveys, the Water Agency appraised that this river may not achieve the good ecological status by 2015 as required by the Water Framework Directive (2000/60/EC). This ecosystem is impacted by industrial effluents (organic matter, metals and aromatic compounds). In order to ass...

Journal: :iau international journal of social sciences 2013
mehrdad nababaksh hashem aram mehdi mokhtarpour

nowadays, most of the cities, especially metropolises of developing countries are engaged with environmental issues like air and water pollution, waste increase and etc., that lead to the environmental destruction. meanwhile sustainable urban development, provides the balance between development and the environment, and supplies the current generation needs while keep its eyes on the next gener...

Journal: :Water 2022

Water contamination is indeed a worldwide problem that threatens public health, environmental protection, and agricultural productivity. The distinctive attributes of machine learning (ML)-based modelling can provide in-depth understanding into increasing water quality challenges. This study presents the development multi-expression programming (MEP) based predictive model for parameters, i.e.,...

Journal: :Journal of water and health 2011
Tasneem Abbasi S A Abbasi

Water quality indices (WQIs), which translate numerical values of several water quality characteristics of a sample into a single value, play a very important role in the monitoring, comparison and control of water quality. The WQIs of modern and post-modern times have been almost exclusively based on physical and chemical characteristics, and have seldom included 'biological' characteristics o...

2018
Weili Duan Bin He Yaning Chen Shan Zou Yi Wang Daniel Nover Wen Chen Guishan Yang

Comprehensive understanding of the long-term trends and seasonality of water quality is important for controlling water pollution. This study focuses on spatio-temporal distributions, long-term trends, and seasonality of water quality in the Yangtze River basin using a combination of the seasonal Mann-Kendall test and time-series decomposition. The used weekly water quality data were from 17 en...

2002
Ahmed Said David K. Stevens Gerald Sehlke

Comprehensive watershed management requires the determination of both point and non-point sources of pollution within a watershed. The primary non-point source pollutants in a typical watershed are nutrients, sediment, animal wastes, salts, and pesticides. Nutrients are mainly nitrogen and phosphorous. Agricultural activities and wastewater treatment plants are the principal sources of nitrogen...

ژورنال: اکوبیولوژی تالاب 2020
Jamileh Panahy Mirzahasanlou, Jamileh , Fataei, Ebrahim, Panahy Mirzahasanlou, Arezou ,

In spite various uses of river water, it has always been exposed to pollution due to the development of human societies and the expansion of industries. Different indices, is used for estimation of water quality. Nowadays, aquatic organisms have efficient uses in water quality estimation. In this study, diatoms of Anbaran river, located in Namin city, east of Ardabil province, were investigated...

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