نتایج جستجو برای: polluted water

تعداد نتایج: 557844  

Journal: :Environmental Modelling and Software 2014
Young-Seuk Park Yong-Su Kwon Soon-Jin Hwang Sangkyu Park

Understanding the pattern of reservoir water quality in relation to morphometry and other landscape characteristics can provide insight into water quality management. We investigated the water quality of 302 reservoirs distributed nationwide in Korea by classifying them using a self-organizing map (SOM), examining how hydrogeomorphometry variables are related to reservoir water quality, and eva...

2016
Neha Sahu Baban K. Bansod

This paper presents the review on different concepts of fluoride detection techniques and technologies in water. At high concentration Fluoride is toxic to humans. When humans are exposed to fluoride-containing water, they can suffer from health problems, such as dental disease. Drinking water is the most consumed beverages. For humans beverages aresignificant sources of fluorides. Consistent e...

2015
Fatimah S Alhamlan Ahmed A Al-Qahtani Mohammed N Al-Ahdal

The effect of human activities on water resources has expanded dramatically during the past few decades, leading to the spread of waterborne microbial pathogens. The total global health impact of human infectious diseases associated with pathogenic microorganisms from landbased wastewater pollution was estimated to be approximately three million disability-adjusted life years (DALY), with an es...

2016
Yung-Chul Jun Nan-Young Kim Sang-Hun Kim Young-Seuk Park Dong-Soo Kong Soon-Jin Hwang Kevin Strychar

Conserving and enhancing freshwater biodiversity are global issues to ensure ecosystem integrity and sustainability. To meet this, it is critical to understand how the biological assemblages are determined by environmental gradients in different spatial scales. Nevertheless, information on their large-scale environmental relationships remains scarce in Korea. We aimed to understand nationwide s...

2015
Jing Li Haixin Yu Yaning Luan Rao Bhamidiammarri Kiran Tota-Maharaj

The use of aquatic plants for phytoremediation is an important method for restoring polluted ecosystems. We sought to analyze the capacity of different aquatic plant species to absorb heavy metals and to summarize available relevant scientific data on this topic. We present a meta-analysis of Cu, Zn, and Cd absorption capacities of aquatic plants to provide a scientific basis for the selection ...

ژورنال: سلامت و محیط زیست 2008
برقعی, مهدی, تقی پور, حسن, حسنی, امیر حسام, قدیرزاده, ایوب, مسافری, محمد, کمالی کردآباد, زهره,

Background and Objectives: Conducted studies about arsenic have shown that consumption of water contaminated with arsenic can causes different adverse health effects in consumers. World Health Organization (WHO) has enacted 10µg/L arsenic in drinking water as a guideline value. Regarding some reports about arsenic presence in a village of Hashtrood county and related health effects and also con...

Background: Titanium dioxide (TiO2)-mediated photocatalysis has been found to be an efficient method of water treatment and is capable of degrading a wide range of organic pollutants and microbial agents with high efficiency. The microorganism Pseudomonas aeruginosa is resistant to chemicals and UV irradiation. Bacteria which are resistant to UV-induced oxidative damage of the cell membrane are...

Journal: :Journal of the American Mosquito Control Association 1999
I Thiéry F Fouque B Gaven C Lagneau

Bacillus thuringiensis serovar medellin strain 163-131 and Bacillus thuringiensis serovar jegathesan (B.t.jeg.) strain 367 are very toxic to mosquito larvae. However, they are 10 times less toxic than Bacillus thuringiensis var. israelensis (B.t.i.) to mosquito larvae under laboratory conditions. Lyophilized powders were produced from these strains and their toxicities were compared to that of ...

2017
David J. Beale Avinash V. Karpe Warish Ahmed Stephen Cook Paul D. Morrison Christopher Staley Michael J. Sadowsky Enzo A. Palombo

A multi-omics approach was applied to an urban river system (the Brisbane River (BR), Queensland, Australia) in order to investigate surface water quality and characterize the bacterial population with respect to water contaminants. To do this, bacterial metagenomic amplicon-sequencing using Illumina next-generation sequencing (NGS) of the V5-V6 hypervariable regions of the 16S rRNA gene and un...

2015
Hugh Lefcort David A Cleary Aaron M Marble Morgan V Phillips Timothy J Stoddard Lara M Tuthill James R Winslow

Anthropogenic atmospheric CO2 reacts with water to form carbonic acid (H2CO3) which increases water acidity. While marine acidification has received recent consideration, less attention has been paid to the effects of atmospheric carbon dioxide on freshwater systems-systems that often have low buffering potential. Since many aquatic systems are already impacted by pollutants such as heavy metal...

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