نتایج جستجو برای: especially flowing waters

تعداد نتایج: 439633  

Rivers are the natural flow of surface waters that flow in a certain bed seasonal or permanently. Rivers include a vast range of narrow waterways and with mountainous high steep to low steep and wide beds flowing in plains. However, rivers have had an effective role in urban development and human civilization, therefore, identification of flood prone areas and flood part in the potent lower fie...

Journal: :Estuarine Coastal and Shelf Science 2022

The patterns of variation at 12 microsatellite loci are used to determine whether Snapper, Chrysophrys auratus, is genetically homogeneous across its range in Western Australian waters and elucidate the extent which genetic composition this exploited sparid varies among regions Australasia. auratus was collected from seven locations Australia (WA), southwards Carnarvon (25°05–15′S, 113°25–35′E)...

2006
A. Miernik

This paper presents a sanitary state estimation of Zegrze man-made reservoir and Vistula river using typical bacterial factors. The aim of this study was to introduce the possibility of the use of coli bacteriophages as potential indicators of fecal polluted waters. Zegrze Reservoir, as well as the examined Vistula sector, belong to microbiologically contaminated waters. Especially in the summe...

2002
Jeffrey Chanton

Florida’s coastal environment is especially vulnerable to nonpoint source pollution for two reasons. One, the extent of the karst nature of the platform allows great interaction between ground and surface waters. Second, the low gradient of the land results in high water tables. Both of these factors result in poor attenuation of contaminants in the subsurface, and the release of nutrients and ...

Journal: :Dyna-colombia 2023

Constructed wetlands are viable alternatives for the removal of multiple pollutants. The performance Sagittaria latifolia in free flowing and subsurface removing pollutants from domestic waters was evaluated. 12 will be followed, three with species without species, retention times 6.7 days 3.5 subsurface. presented an effluent turbidity 4.4±0.8 NTU, color 143.9±27.4 UC 33.9±25.7 mgL-1 COD. samp...

2007
TOMAS JOHANNESSON

Observations from the jôkulhlaup from Grimsvôtn in Vatnajôkull, southeastern Iceland, in 1996 indicate that the jôkulhlaup was initiated by the movement of a localised pressure wave that travelled 50 km in 10 h from Grimsvôtn to the terminus, forming a subglacial pathway along the glacier bed. Shortly after this wave reached the terminus, the jôkulhlaup was flowing at a high discharge through a...

2004
El Niño

El Niño (The Christ Child) is named for the unusual warm current of water flowing south near the coast of Peru whose onset is often felt near Christmas. This mostly regular event has a great effect on the Peruvian anchovy industry, at one time, one of the most productive fisheries in the world. When cold-water upwelling stops reducing the amount of nutrients in the surface waters off the South ...

2005
Titus Motswadi Maswabi Mathew M. Nindi

Sample pre-treatment and enrichment using the supported liquid membrane (SLM) technique for the determination of phenolic nitrile herbicides in presence of carbamates in river water samples was investigated. The uncharged herbicide molecules from the flowing aqueous solution diffuse through an immobilized water-immiscible organic solvent, supported by a porous polytetrafluoroethylene (PTFE) mem...

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