نتایج جستجو برای: water turbidity

تعداد نتایج: 553927  

Journal: :Journal of Water Supply: Research and Technology-Aqua 2011

2011
Milkiyas Tabor Mulugeta Kibret Bayeh Abera

BACKGROUND Lack of safe drinking water, basic sanitation, and hygienic practices are associated with high morbidity and mortality from excreta related diseases. The aims of this study were to determine the bacteriological and physico-chemical quality of drinking water and investigate the hygiene and sanitation practices of the consumers in Bahir Dar City, Ethiopia. METHODS A cross sectional p...

2015
Weixing Ma Tinglin Huang Xuan Li Zizhen Zhou Yang Li Kang Zeng Miklas Scholz

Storm runoff events in the flooding season affect the water quality of reservoirs and increase risks to the water supply, but coping strategies have seldom been reported. The phenomenon of turbid current intrusion resulting in water turbidity and anoxic conditions reappearing after storm runoff, resulting in the deterioration of water quality, was observed in the flooding season in the deep can...

The microbial quality of water plays a key role in community health. The present study aimed to determine the microbial quality of the drinking water distribution networks in the urban and rural areas of Dasht-e Azadegan County, Iran and assess the influential factors in the quality of drinking water.In this descriptive-analytical study, 907 drinking water samples were collected from the urban ...

ژورنال: Medical Laboratory Journal 2015
Bay, A, , Elyasi, SA, , Manshouri, M, , Paydar, R, , Sadeghi, M, , Tazikeh, F, , Yazdanbakhsh, AR, ,

Abstract Background and Objective: Swimming pools, which are recreational places, can cause transmission of bacterial diseases, fungal and parasitic infections due to direct contact with various groups of people. We aimed to determine and compare the common microbial indicators in the water of pools and Jacuzzis in Golestan province.  Material and Methods: the samples were obtained...

Journal: :Journal of Water Resource and Protection 2009

2018
Joshua N. Edokpayi John O. Odiyo Elizabeth O. Popoola Titus A.M. Msagati

Background Access to clean and safe drinking water is still a problem in developing countries and more pronounced in rural areas. Due to erratic supply of potable, rural dwellers often seek for an alternative source of water to meet their basic water needs. The objective of this study is to monitor the microbiological and physicochemical water quality parameters of Nzhelele River which is a maj...

2000
Victoria G. Christensen Andrew C. Ziegler Xiaodong Jian

To obtain timely and continuous water-quality information, the U.S. Geological Survey, in cooperation with State and other Federal agencies, has been using an innovative real-time monitoring approach for several Kansas streams. Continuously recorded data and data from periodic collection of water-quality samples are being used to develop surrogate relations between turbidity and constituents of...

2006
Rakesh K. Gelda Steven W. Effler

The development and testing of a “turbidity” model is documented for a water supply reservoir, Schoharie Reservoir, NY, where inorganic terrigenous particles received during runoff events in turbid density currents from the primary tributary cause distinct periodic degradation. The model state variables are fractions two or three of the beam attenuation coefficient at 660 nm c660 , a surrogate ...

Journal: :Journal of vector borne diseases 2011
Albert O Mala Lucy W Irungu

BACKGROUND & OBJECTIVES The study was undertaken to characterize factors influencing differential productivity of Anopheles gambiae complex mosquitoes at larval habitats in a rural village in western Kenya. METHODS Longitudinal larval sampling was done using an area sampler for 3 months. Emerged adults were identified to species level morphologically using taxonomic keys and to sub-species by...

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