YSI 5909 DO Cap Membrane Kit
- Especially well suited for low flow, profiling, and flow cell applications.
- Can be used with the YSI 556
- Has the lowest flow dependence at 18% and approximately 18 second response time
|605307||5909 PE blue 2.0 mil cap membrane kit, 559 & 2003 polarographic sensors|
|052380||5238 probe reconditioning kit, for use with 5239, 85, 559, 2002 & 2003 DO probes|
- (6) 2 mil blue cap membranes
- (1) Bottle of electrolyte solution
- (1) Sanding disk
- (1) Instruction sheet
- (3) Gaskets
In The News
A group of high schoolers in the Green Bay, Wisc. area are learning about careers in environmental science thanks to the Lower Fox River Watershed Monitoring Program . The program, supported by the University of Wisconsin, has involved more than 700 students since its 2003 launch.
“We have almost ten years of data,” said Annette Pelegrin, program coordinator. “It began in 2003 with five watersheds. We’ve trained teachers and schools that are interested and showed them how to measure different parameters.”
Those include flow, temperature, transparency and turbidity of the program’s streams. YSI 55 meters are used to measure dissolved oxygen and levels of phosphorus, ammonia and nitrogen are checked with a Hach colorimeter.Read More
In Saskatoon, Saskatchewan, pollution and runoff from storms and snowmelt are getting the close look they deserve, and there’s much more to examine.
Weather, from heavy spring storms to long months of snow and freezing temperatures, makes the polluting potential of runoff and snowmelt greater than and different from warmer climate cities, said Garry Codling in an email. In Saskatoon, potentially harmful elements in runoff can exceed the guidelines for runoff set by the Canadian government.Read More
Appalachia may be as closely associated with mining as it is to anything else. That close relationship will leave its mark on the area’s streams long after the last mine closes.
A nine-year study recently published in Science of the Total Environment shows that long after mining activity stops and the land is left to heal, streams and stream life are slow to recover.
“We could be really fine point and say that some of them seem to be recovering very, very slowly,” said Carl Zipper, professor emeritus of environmental science at Virginia Tech University . Most of the streams studied didn’t show signs of recovery.Read More