America’s Most Endangered Rivers report is one of the most effective tools in the environmental movement for publicizing threats to rivers and galvanizing the public to take action. The 2013 report highlights a number of key threats, and shines the spotlight on rivers running dry because of outdated water management, wasteful water use, and persistent drought.
Nanobite remediates boyne river oil spill - Case study
On the 6 September 2007, an oil spill from a fuel dump leaks into the beautiful Boyne River, County Louth, Ireland. Local wild fowl and their nesting areas are endangered, as is the local water supply. The coastguards deploy conventional booms to contain the spill but decide against the use of conventional chemical detergents because of the obvious damage to flora and fauna. Drogheda Borough Council require a treatment that is 100% environmentally safe. They chooseNanobite Liquid, an inert, non-toxic and...
Case study - Control of dredging works in the Danube River - Austria
The Austrian waterway management has introduced an automatic system to monitor a series of barges, which calculates the dredged material as a basis for handling invoices of the dredging companies. Before converting to a remote data transmission option, all calculations were entered manually. The datalogger saves the cost for hand-writing documentation of the dredging works by external staff and guarantees an automatic and standardized procedure of cubature calculations. Technology used: OTT NetDL DataloggerOTT...
Case study - Discharge measurement at the river
Due to the seasonally strong weed growth and low flow during low water periods the measurement of water level and flow at the measurement site "Kleinraschuetz“ was rather distorted. It had to be corrected by putting in additional manpower for manual measurements.Therefore it was decided to modernize the station completely and to install a stationary discharge measuring system. The challenge of the measurement situation was to find a solution that measures reliably at all water levels from a low level of 29...
Water quality and antifungal susceptibility of opportunistic yeast pathogens from rivers
Yeasts from water sources have been associated with diseases ranging from superficial mucosal infections to life threatening diseases. The aim of this study was to determine the water quality as well as diversity and antifungal susceptibility of yeasts from two rivers. Yeast levels and physico-chemical parameter data were analyzed by principal component analysis to determine correlations between physico-chemical data and yeast levels. Yeast morphotypes were identified by biochemical tests and 26S rRNA gene...
Water transparency distribution under varied currents in the largest river-connected lake of China
Water transparency is an important ecological indicator for shallow lakes. The largest shallow lake, Poyang Lake, as well as the most typical river-connected lake in China was selected as the research area. In view of the complicated water-sediment conditions induced by its frequent water exchange with external rivers, the dominant factors driving water transparency were determined against the field investigated data from 2003 to 2013 and a specific driving function was established. A numerical model coupling...