نتایج جستجو برای: water quality management

تعداد نتایج: 1991066  

Journal: :Journal of environmental quality 2010
Donald W Meals Steven A Dressing Thomas E Davenport

Nonpoint source (NPS) watershed projects often fail to meet expectations for water quality improvement because of lag time, the time elapsed between adoption of management changes and the detection of measurable improvement in water quality in the target water body. Even when management changes are well-designed and fully implemented, water quality monitoring efforts may not show definitive res...

Journal: :International journal of environmental research and public health 2016
Rachel Peletz Emily Kumpel Mateyo Bonham Zarah Rahman Ranjiv Khush

Water quality information is important for guiding water safety management and preventing water-related diseases. To assess the current status of regulated water quality monitoring in sub-Saharan Africa, we evaluated testing programs for fecal contamination in 72 institutions (water suppliers and public health agencies) across 10 countries. Data were collected through written surveys, in-person...

2016
Aaron R. Mittelstet Daniel E. Storm Michael J. White

The number of states that have adopted numeric nutrient water-quality standards has increased to 23, up from ten in 1998. One state with both stream and reservoir phosphorus (P) numeric water-quality standards is Oklahoma. There were two primary objectives of this research: (1) determine if Oklahoma was meeting the stream and reservoir numeric water-quality standards in the Illinois River and E...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شاهد - دانشکده هنر 1391

now-a-days graphic design plays a major role in influencing culture, society, business, and customers, in such a way that one could look upon every individual as a potential customer. graphic designers seek to identify customers needs and find an intelligent solution for them. correct identification and understanding of those needs is the first step towards achieving ones goals. marketing knowh...

ژورنال: علوم آب و خاک 2008
شریعتمداری, حسین, یوسفی, معصومه , حاج عباسی, محمد علی ,

  Adopting proper agricultural management and conserving soil organic matter are important components of sustainable agriculture. Soil organic matter content is a key attribute in soil quality. Labile organic matter pools can be considered as suitable indicators of soil quality that are very sensitive to changes in soil management practices. This research was carried out to investigate some org...

2012
Pei-Te Chiueh Wei-Ting Shang Shang-Lien Lo

Watersheds are recognized as the most effective management unit for the protection of water resources. For surface water supplies that use water from upstream watersheds, evaluating threats to water quality and implementing a watershed management plan are crucial for the maintenance of drinking water safe for humans. The aim of this article is to establish a risk assessment model that provides ...

Journal: :iranian journal of health sciences 0
zabihollah yousefi department of health,health sciences research center, mazandaran university of medical sciences, sari, iran. samad rouhani department of health,health sciences research center, mazandaran university of medical sciences, sari, iran. seyyed mohsen ansari-yeganeh school of public health, mazandaran university of medical sciences

background and purpose: water is the most important limiting factor of sustainable development. poor quality of water sources and lack of appropriate management in some regions are the main reasons of water crises in the country. this study was conducted to assess water sources quality and the trend of their change in rural area of sabzevar county in a five year period. materials and methods: i...

شریعتمداری, حسین, یوسفی, معصومه , حاج عباسی, محمد علی ,

  Adopting proper agricultural management and conserving soil organic matter are important components of sustainable agriculture. Soil organic matter content is a key attribute in soil quality. Labile organic matter pools can be considered as suitable indicators of soil quality that are very sensitive to changes in soil management practices. This research was carried out to investigate some org...

Journal: :Network Protocols & Algorithms 2016
Hyder Khaleeq Ali Abou-Elnour Mohammed Tarique

With the ever increasing growth in population water quality monitoring has become a critical issue in the recent years. Water quality monitoring is very important for aquaculture, waste water management, drinking water treatment, water distribution system, and other environmental applications. Recently numerous researchers have been initiated to build wireless system for water quality monitorin...

Journal: :Journal of water and health 2014
H de Man E J T M Leenen F van Knapen A M de Roda Husman

Splash parks have been associated with infectious disease outbreaks as a result of exposure to poor water quality. To be able to protect public health, risk factors were identified that determine poor water quality. Samples were taken at seven splash parks where operators were willing to participate in the study. Higher concentrations of Escherichia coli were measured in water of splash parks f...

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