Water quality
water-quality

Rivers, oceans, lakes, aquifers, groundwater, stormwater, urban canals, underground streams, estuaries, and more -- we are passionate about water quality! This page will help you find resources to explore the waterbodies you care about, and connect with other people who have the same interests: ### Questions on Water Quality: [questions:water-quality] **** ## Monitoring * [Water sampling](/water-sampling) * [Water sensors](/water-sensors) * Posts on #water-monitoring * Posts on #water-testing * Posts on #reagents ## Water quality parameters Read about different water quality parameters here, including pH, nitrogen, conductivity, temperature, ORP and turbidity: * https://publiclab.org/common-water-contaminants Also see this overview of 7 ways to monitorn water quality: * https://publiclab.org/notes/anngneal/12-08-2017/7-ways-to-measure-monitor-and-evaluate-water-quality ## Groups and projects working on water quality issues: [wikis:project:water-quality] **** ## Water quality related pages [wikis:parent:water-quality] **** ## Activities [activities:water-quality]...


Author Comment Last activity Moderation
EdMallon "This latest update was motivated by several factors but the most important ones were: (1) Our own project has grown to the point that every fieldwo..." | Read more » almost 3 years ago
liz "What kind of net is used to sample for plankton? Is it more finely woven than the nylon "babylegs" tights or different in any way? If so, can we sw..." | Read more » almost 3 years ago
liz "What a fantastic update! It's great to hear from you @EdMallon. An underwater logger running for a year on a single coin cell battery?? COOL. Taggi..." | Read more » almost 3 years ago
liz "I got in touch with the author of the Grist article as we know each other from civic tech days in NYC. She stated that she has continuing interest ..." | Read more » almost 3 years ago
Ag8n "Believe it or not, during the seaon, this is on the weather segment of the local news. The local water intakes (Cleveland) are often threatened by..." | Read more » almost 3 years ago
EdMallon " It’s been a long time since I posted, and you’d be forgiven for thinking the Cave Pearl Project was yet another victim of COVID. While the attend..." | Read more » almost 3 years ago
liz "For detecting temperature change in waterbodies, see: thermal "fishing bob" $5 diy sensor, then you take a timelapse of its color change as it is..." | Read more » almost 3 years ago
liz "Looks like Harmful Algae Blooms are top of the list of direct threat to public health posed by the release of hot water into Lake Seneca. Summariz..." | Read more » almost 3 years ago
hspencer22 "Yes, they absolutely wanted the trail to be hard to follow. I did acquire the sample results that were given to the city from the lab they contract..." | Read more » almost 3 years ago
Ag8n "The results you were given aren't "top of the line". To be honest, the book keeping is kind of shoddy. Normally, there would be reference to the t..." | Read more » almost 3 years ago
warren "Thank you for the links and the explanations!!! " | Read more » almost 3 years ago
Ag8n "We also used graphite furnace AA, also called GFAA. One common analytical instrument is ICP (inductively coupled plasma). I've used them a couple..." | Read more » almost 3 years ago
Ag8n "Another reference. "Some recent developments in atomic fluorescence spectrosopy" by T.S.West Analytical Chemistry, ( presented at 26 th internati..." | Read more » almost 3 years ago
Ag8n "Here are a couple of reference: "Studies in atomic fluorescence spectroscopy -III:microwave excited electrodeless discharge tubes as spectral sour..." | Read more » almost 3 years ago
warren "Hmm... I guess it seems like a tough setup for my skill set. What does the microwave version look like? " | Read more » almost 3 years ago
Ag8n "You know, getting a couple of these that could be "disposable" might not be a bad idea. Working with 400 volts isn't a terribly high voltage, but ..." | Read more » almost 3 years ago
Ag8n "That looks like a hollow cathode lamp. We used perkin elmer, not fisher, so there could be differences. The lamp should have the element it can d..." | Read more » almost 3 years ago
Ag8n "Aanalyst (a model of atomic absorption spectrometer that we had)hollow cathode lamps new are running for about $350. So when there are hollow cat..." | Read more » almost 3 years ago
Ag8n "That looks like a hollow cathode lamp. But there are other kinds. It should have the element on the base plus usually the operating current range..." | Read more » almost 3 years ago
warren "https://www.sciencedirect.com/science/article/abs/pii/0039914070800819 " | Read more » almost 3 years ago
warren "Interesting. It's like a high power version of this? https://www.ebay.com/itm/324819370181 Does this take high voltage to run? " | Read more » almost 3 years ago
Ag8n "I worked a lot on lead with atomic aborpion(AA) and related techniques. The two lead lines we normally used were 283 nm and 214 nm. Of course, the..." | Read more » almost 3 years ago
Ag8n "The first article from" research gate "is a little more interesting. It has lead forming something similar to chelates. The summary of the articl..." | Read more » almost 3 years ago
Ag8n "The last paper mentioned above is(I think) using chemiluminesence to generate the light(Flouescent detection of lead in... ByYan- Shiuan Wu, Et a..." | Read more » almost 3 years ago