Show results for
Refine by
Environmental Management Equipment & Supplies
19 equipment items found
Manufactured by:Solinst Eureka LLC based inAustin, TEXAS (USA)
The EasyProbe20 package includes: a multiprobe with the sensors for temperature, dissolved oxygen, conductivity, and pH in a 1.95” diameter; a selection of various lengths of underwater cable; weighted sensor guard, tool and maintenance kit, and a soft carrying ...
Manufactured by:Solinst Eureka LLC based inAustin, TEXAS (USA)
Total Dissolved Gas (TDG) is the sum of the partial pressures of all gases in a water sample. Normally, the sum of gas partial pressures will be about one atmosphere (15 psi) for any water that is exposed to the atmosphere. The partial pressure of each gas will be the same as that’s gas’s contribution to atmospheric pressure, i.e. about 20% oxygen, 79 % nitrogen, and 1% trace gases. ...
Manufactured by:Solinst Eureka LLC based inAustin, TEXAS (USA)
pH is a measurement of water’s acidity or alkalinity. Water with pH less than seven is acidic; water with pH greater than seven is alkaline (basic). The pH of water is determined by dissolved, pH-active salts. For instance, dissolving sodium hydroxide in pure water will increase the pH because the hydroxide ion is a pH-active base, and dissolving hydrogen sulfide in pure water will ...
Manufactured by:Solinst Eureka LLC based inAustin, TEXAS (USA)
Ion-Selective Electrodes (ISE’s) are a class of sensors that respond to the presence of specific ions, such as sodium (Na+) or bromide (Br). They are used in conjunction with a reference electrode, and report ion concentrations in mg/L. ...
Manufactured by:Solinst Eureka LLC based inAustin, TEXAS (USA)
Fluorescent dyes, particularly those which are non-toxic and not visible, like PTSA, are often added to water systems to provide water discharge and velocity data. Dye tracing studies can provide useful information for modeling surface and groundwater systems in addition to tracing contaminants. Fluorometers allow researchers to measure ultra-low concentrations of dye. With this extreme ...
Manufactured by:Solinst Eureka LLC based inAustin, TEXAS (USA)
Tryptophan is an amino acid dissolved in water that has a specific excitation and emission. It is classified as protein-like organic matter and sources may include water systems with high biological activity and wastewater or industrial discharge. Tryptophan is yet another parameter researchers can measure to track wastewater effluent, which may greatly impact habitats and wildlife ...
Manufactured by:Solinst Eureka LLC based inAustin, TEXAS (USA)
Turbidity is an indication of the amount of light that will pass through a column of water. Clear waters have low turbidity; waters with high suspended solids have high turbidities. ...
Manufactured by:Solinst Eureka LLC based inAustin, TEXAS (USA)
Measuring photosynthetically active radiation (PAR) under the surface of water is useful in a variety of fields, from algal biofuels research to environmental quality. When light passes through a water column, it is attenuated based on the thickness of the column and the turbidity of the water. Measuring PAR underneath the surface of a lake, stream, bay, ocean, pond, or bioreactor can provide an ...
Manufactured by:Solinst Eureka LLC based inAustin, TEXAS (USA)
Technically, temperature is a measure of the energy of the molecules comprising a substance. For our purposes, it is how hot or how cold a water body might be. The Centigrade scale is used most often in studies of water. Temperature affects natural waters several ways. Small changes in water temperature can affect the reproduction and growth rate of the aquatic flora and fauna. Chemically, ...
Manufactured by:Solinst Eureka LLC based inAustin, TEXAS (USA)
A transmissometer measures the percentage of light transmitted along a fixed path. Eureka integrates 3 party transmissometers, which are mounted externally to the Manta multiprobe. ...
Manufactured by:Solinst Eureka LLC based inAustin, TEXAS (USA)
“Crude oil” is a catch-all term for unprocessed, natural petroleum. There are many classes of crude oil, and the chemical composition of each source is slightly different. Not all crude oil in water is the result of a man-made oil spill; many water bodies have small amounts of oil seepage. One source estimates that each year, 500,000 barrels of oil seep into the Gulf of Mexico from ...
Manufactured by:Solinst Eureka LLC based inAustin, TEXAS (USA)
Carbon dioxide can enter the water through multiple pathways. Some primary land sources can include decay of organic matter, dissolution of carbonate rocks, wastewater discharge, and watershed draining. Other natural sources include biological respiration, sediment diagenesis, or volcanic activity. A major source/sink of CO2 is atmospheric exchange at the air/water interface. Simply, carbon ...
Manufactured by:Solinst Eureka LLC based inAustin, TEXAS (USA)
Fluorescent dyes like Rhodamine are often added to water systems to provide water discharge and velocity data. Dye tracing studies can provide useful information for modeling surface and groundwater systems in addition to tracing contaminants. Fluorometers allow researchers to measure ultra-low concentrations of dye. The sensors extreme sensitivity and instrument flexibility allows researchers ...
Manufactured by:Solinst Eureka LLC based inAustin, TEXAS (USA)
Fluorescent dyes like Fluorescein, are often added to water systems to provide water discharge and velocity data. Dye tracing studies can provide useful information for modeling surface and groundwater systems in addition to tracing contaminants. Fluorometers allow researchers to measure ultra-low concentrations of dye. With extreme sensitivity and instrument flexibility, researchers can glean ...
Manufactured by:Solinst Eureka LLC based inAustin, TEXAS (USA)
Optical Brighteners (OBAs) or Fluorescent Whitening Agents (FWAs) are added to products, such as laundry soaps, detergents, or cleaning agents. Fabrics or materials absorb OBAs during the washing or cleaning process. When illuminated by ultraviolet light, they fluoresce and make products and fabrics appear brighter. ...
Manufactured by:Solinst Eureka LLC based inAustin, TEXAS (USA)
Blue-green algae is not algae, it is bacteria called cyanobacteria (phycobiliproteins). It is called algae because it is, like algae, photosynthetic. In fact, blue-green algae is responsible for over 20% of the earth’s total photosynthesis. And, like algae, cyanobacteria can be found as individual cells in filamentous colonies. Cyanobacteria have been found to be a numerically abundant ...
Manufactured by:Solinst Eureka LLC based inAustin, TEXAS (USA)
Liquid water is a loose matrix of water molecules. If water without oxygen comes into contact with a source of oxygen, such as the atmosphere, then oxygen will slowly move into the gaps in the water-molecule matrix. That oxygen is called dissolved oxygen (DO); it is the same thing as dissolving table salt in water. Oxygen dissolved in water comes from the atmosphere and/or photosynthetic ...
Manufactured by:Solinst Eureka LLC based inAustin, TEXAS (USA)
The measurement and distribution of living microscopic plant matter, commonly referred to as phytoplankton or algae, has been of interest to scientists, researchers, and aquatic resource managers for decades. An understanding of phytoplankton populations and their distribution enables researchers to draw conclusions about an aquatic system's health, composition, and ecological status. ...
Manufactured by:Solinst Eureka LLC based inAustin, TEXAS (USA)
Depth is distance below the water surface. Stage is the same thing, except that stage sensors are more accurate over a smaller range (usually a maximum of 10 meters) than depth sensors and are vented to the atmosphere at the surface. The term “level” is often used interchangeably with stage. ...