نتایج جستجو برای: surface water quality

تعداد نتایج: 1798552  

Journal: :Biomedical and environmental sciences : BES 2006
Jian-Ping Wang Xi-Kun Guo

OBJECTIVE To evaluate the environmental quality of Guiyu, Guangdong impacted by the electronic waste recycling industry. METHODS The surface water, ground water and sediment samples taken separately from two sites that recycle E-wastes and other rubbish relevant to the E-waste recycling, and an agricultural area, were analyzed, and the data were used to evaluate the impact of E-waste recyclin...

2013
Durga D. Poudel

Surface water quality impairment in agricultural watersheds is a major environmental concern in the United States. To assess seasonal and spatial variability of surface water quality and identify factors associated with surface water quality variability, we monitored surface water quality at seven locations in Bayou Plaquemine Brule Watershed in Louisiana twice monthly from March of 2002 to Feb...

Journal: :journal of agricultural science and technology 2010
a. abbasi surki f. sharifzadeh r. tavakkol afshari n. majnoun hosseini h. r. gazor

in some conditions, to avoid deterioration and field losses of soybean seeds (glycine max merr.) from weathering at end of the season, farmers start to harvest seeds with a high moisture content and so, careful post-harvest drying would be required to maintain the physiological quality of seeds. response surface methodology (rsm) was used to optimize the operating conditions of soybean seed dry...

Journal: :Water 2021

The study was conducted to spatiotemporally analyze the quality, location and critical water variables influencing quality using monitoring data from Department of Environment Natural Resources, Dong Thap province in 2019. parameters including turbidity, pH, temperature, dissolved oxygen (DO), total suspended solids (TSS), biological demand (BOD), chemical (COD), nitrite (N-NO2?), nitrate (N-NO...

2016
Dimitris Alexakis Vassiliοs A. Tsihrintzis George Tsakiris Georgios D. Gikas

Water quality indices (WQIs) are efficient and powerful tools for evaluating, organising and communicating information on the overall quality of surface water bodies. The use of these indices may be very helpful in evaluating the water quality of aquatic systems in relation to the EU Water Framework Directive (WFD). In this study, two well-known water quality indices have been selected for eval...

2017
Wenjing Bo Xiaoke Wang Qianqian Zhang Yi Xiao Zhiyun Ouyang

To design and implement policy to manage water quality, it is important to investigate land use and possible sources of pollution. In this study, using Pearson regression analysis, redundancy analysis and multiple regression analysis, we assess the influence of land use and point sources on water quality in the river system in Shunde district in 2000 and 2010. The results show that water qualit...

Fetoshi, O, Hoxha, A, Kurteshi, K, Ramshaj , Q,

Surface waters in recent years are under the great influence of industrial and anthropogenic factors. Vasileva Lake has been impacted by anthropogenic factors. It has been exploited by people for recreation, vacation and fishing, which exposed Vasileva Lake to occurrence of pollution. Purpose of this work was to evaluate the status of water quality in this artificial lake, using algae-diatoms a...

2007
Hongming He Jie Zhou Yongjao Wu Qian Yu Wanchang Zhang Xiuping Xie

The study investigates water quality pollution impacts on urbanization by analyzing temporal and spatial characteristics of different water quality parameters, and simulating economic loss of water quality pollution in Xi’an, China from 1996 to 2003. Results show that organic pollutants were the greatest contributors of surface water quality pollution from 1996 to 2003. High values existed in p...

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