Drinking Water Measurement Application Notes
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Real-Time Conductivity Monitoring Estimates Chloride Levels In Minnesota Watershed By Using The Aqua TROLL 200
11/18/2011
Monitoring deicing chemical levels can help researchers, city governments, and regulatory agencies understand runoff impacts on surface water, groundwater, and surrounding environments.
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Network Monitors Water Quality In Shale Gas Drilling Region
9/2/2011
High-pressure injection of water, sand, and chemicals that fracture shale deposits deep underground to free trapped natural gas is employed by drillers tapping the Marcellus shale beds, a geologic deposit that stretches from central New York to Virginia and contains gas believed to be worth hundreds of billions of dollars. By YSI
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Application Note: Employing Best Water Quality Monitoring Practices To Reduce Runoff During Construction
8/4/2011
Under proposed EPA stormwater runoff guidelines, construction site operators will be required to actively monitor or sample stormwater discharges daily. The enhanced effluent rules take effect in August 2011 for construction sites that disturb 20 or more acres and February 2014 for sites that disturb 10 or more acres, and they may stipulate a strict numerical limit of less than 280 NTU for average turbidity (sediment in water) on any day. By YSI
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Application Note: Real-Time Monitoring-Through Swell And High Water
6/9/2011
Application article about water quality monitoring pontoon providing continuous data in the Burry Inlet, an estuary in Wales. By YSI
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Application Note: Simultaneous Determination Of Total Bound Nitrogen (TNb) And Total Organic Carbon (TOC) In Aqueous Samples
5/31/2011
Total bound nitrogen (TNb) consists of dissolved ammonia, nitrates, nitrites, amines, and other organic nitrogen-containing compounds. TNb measurements represent an alternative to Total Kjeldahl Nitrogen (TKN) analysis for rapid screening of industrial wastewater, drinking water,agricultural run-off, and surface waters. By OI Analytical
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Application Note: Vertical Profiling Safeguards Drinking Water And Sheds Light On Cyanobacteria
2/3/2011
A search for algal toxins in North Carolina reservoirs has evolved into an ongoing early warning system for three important drinking water reservoirs—which serve two large cities—and yielded a greater understanding of the dynamics of blue-green algae, or cyanobacteria, in the state’s reservoir system. By YSI
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Application Note: Desalination Plants: YSI Instruments Monitor Flow & Water Quality At Multiple Stages
2/3/2011
Desalination is the process of removing salt from sea water or brackish river or groundwater to make potable water. By YSI
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Application Note: Using Real-Time Telemetry For Ecological Monitoring Of Coastal Wetlands
2/3/2011
The Grand Bay National Estuarine Research Reserve (NERR)in Mississippi is one of 27 protected estuarine reserves across the United States. By YSI
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Application Note: Troubleshooting A pH Electrode
1/26/2011
Many factors affect performance of a pH electrode. When performance degrades, it is always a challenge for the analyst to identify the cause. Common troubleshooting procedures, which include evaluation of slope, electrode drift, time response, and accuracy, take considerable time. By Thermo Fisher Scientific
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Application Note: Water Flows From The Golden Hills Of California
1/20/2010
Each morning John Johnson drives the few miles from his smalltown home in northern California to the Center at Pardee Reservoir. Nestled among the foothills of the Sierra Nevada mountain range, the reservoir is a long 100 miles away from San Francisco Bay. By YSI
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