The goal of every monitoring program is to gain a better understanding of an environment. That deeper understanding can lead to better water management tactics or better decision making. Ultimately, to better understand water – we simply need more data – and the more the better.
The Amazon provides a continuous air bubble and an integrated pressure sensor that measures the pressure required to push the bubble out of the orifice line, which is the line pressure. The line pressure value measured in psi is then converted into the desired units of measurement to represent water level.
Webinar opportunity, Fighting Fouling: 7 Tips to Extend Sonde Deployments. Join our team of technical experts as they share strategies for reducing maintenance intervals on water quality data sondes used in continuous long-term monitoring applications. We'd like to help your team spend more time analyzing data and making informed decisions and less time maintaining instrumentation!
The declining environmental health of the Bay, an increase on demands for electric power generation at a nearby point station, and renewals of the National Pollution Discharge Elimination System (NPDES) permits influenced several governmental agencies to review the overall ecological health and the future of Mount Hope Bay.
Sampling a lake of this depth without the aid of a ship with winches poses problems if one is limited to the use of hand-hauled sampling devices lowered and raised in from numerous depths. Having a YSI 6600 data sonde has made data collection much easier, more efficient and much more productive with respect to the array of measurements that can be taken with a single deployment.
The new YSI ProDSS Digital Sampling System. The YSI ProDSS is the most advanced handheld instrument available for water quality spot sampling and profiling studies. The ProDSS is designed to simplify field work. It's a portable water quality multiparameter instrument with a single cable design that provides extreme flexibility for the measurement of dissolved oxygen with an optical sensor, turbidity, pH, ORP, conductivity, temperature, depth, ammonium, nitrate, and chloride.
Although students in a science classroom might be familiar with key water quality parameters, it is likely they have no hands on experience with the tools used to measure them. It is easy to read about these parameters in textbooks, but allowing students to be more engaged in the learning process allows them to develop a deeper understanding of parameters and why they are measured. A major initiative for Five Rivers MetroParks is to actively engage the community in conservation efforts. One way FRMP is accomplishing this goal is to educate children of all ages through hands-on outdoor education programs.
Considering the dire need for physicochemical and biological data, and the need to amass this data at rates far exceeding those afforded by conventional methods, two biological oceanographers, Joe Ramus, and Hans Paerl, decided to manifest an idea that they had been developing for several years. This was to utilize North Carolina Department of Transportation (NC-DOT), Ferry Division’s vessels, that traverse Pamlico Sound many times each day, as “ships of opportunity” and the bearers of automated, continuous water quality monitoring stations.
Turbidity can be a valuable parameter when obtaining a water quality profile of a water system. This blog post will address a few areas where common questions occur in regards to choosing the correct turbidity standards and the associated turbidity units which will hopefully help you collect the best turbidity data possible.
It has been said that “all good things eventually come to an end” and with the current list of product discontinuations and the upcoming discontinuation of the remainder of some of most popular handhelds, the “classics” if you will, we believe that this “end” comes a great beginning. Everyone deserves the latest and greatest in sampling technology, and that is exactly what these Professional Series replacements give.
Nationwide, runoff from non-point sources is the largest source of nutrients, including N and P discharged to surface water. Although phosphorus is the 11th most abundant element in the earth’s crust, most natural phosphate compounds are very insoluble, and therefore, not quickly replenished. Therefore, plant available phosphorus is only a fraction of phosphorus in the soil. To make up for the difference between what is available and what is needed, more soluble forms are created for use in commercial fertilizers. Unfortunately, this same property makes them susceptible to runoff to surface waters through field tiles, storm sewers, and non-point sources.
Hypoxia is an environmental phenomenon where the concentration of dissolved oxygen in the water column decreases to a level that can no longer support living aquatic organisms. The level is often considered to be 2 mg O2 per liter of water or lower. Hypoxic and anoxic (no oxygen) waters have existed throughout geologic time, but their occurrence in shallow coastal and estuarine areas appears to be increasing as a result of human activities.
Whether you are purchasing a water quality instrument for the first time or you are looking to add to your existing fleet, there are always a few key considerations before taking the plunge and purchasing a new piece of instrumentation.
Early warning systems for drinking water resources are critical to ensure safe drinking water. Water quality instruments are used for profiling and collecting baseline data to drive a better understanding of source water/drinking water characteristics. Monitoring long-term trends and changes in water quality is the first step towards a deeper understanding of source water resources.
Northern Georgia is experiencing unprecedented development; consequently, water quality in many of its watersheds is in jeopardy of severe degradation. The State of Georgia, Environmental Protection Division (EPD) has implemented an National Pollutant Discharge Elimination System (NPDES) monitoring and enforcement program designed to prevent construction activities from impacting water quality.
At the end of 2015 Mr. Mike Lizotte formally retired from his role as an Applications Engineer for YSI, a Xylem brand. Over the years he has worked with diverse groups of professionals and students on a plethora of projects – earning him a well-deserved reputation as an expert in his field. In the following post Mike shares with us how he got his start, some of his major contributions to the field of water quality monitoring, and some parting advice to the professionals of the future.
Researchers from the south coast of England have established a small network of monitoring instruments in Christchurch Harbour and associated rivers to study the effects of weather events on water quality, and to better understand the magnitude and spatial/temporal variation of macronutrient fluxes - nitrogen (N), carbon (C) and phosphorus (P).
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