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 | "You can use a Pro Mini (or any other Arduino with an Atmel processor) to measure temperature using only the mcu. I think this is the best "No-Par..." | Read more » | almost 6 years ago | |||
| falbriard | " @Ag8n , thanks so much for support and answers. Meanwhile I also found a summary of reagents and methods based on UV/VIS spectrophotometry [ http..." | Read more » | almost 6 years ago | |||
| Ag8n | " You might want to look into ANDalyze. They use a new technology based on DNA for heavy metal analysis in water samples. I'd need to see validati..." | Read more » | almost 6 years ago | |||
| EdMallon | "A high-school teacher friend asked us for faster build that is less dependent on soldering because they don't have the budget for that kit. So we'v..." | Read more » | almost 6 years ago | |||
| belkinsa | " Thank you @MadTinker, I updated the page with that info, hopefully it's right. " | Read more » | almost 6 years ago | |||
| MadTinker | " @belkinsa I’d strongly suggest the Winkler test for monitoring DO. It’s easy, can be done reliably by 14+ yr old kids. Works on lakes, rivers, etc..." | Read more » | almost 6 years ago | |||
| belkinsa | "Sorry for the delay. I was thinking that the data could be used for monitoring rather than education because that data could be used as a red flag...." | Read more » | almost 6 years ago | |||
| Ag8n | " First off, spectrometers are much more common than spectrophotometers, these days. And cheaper too. T he method you referenced relies heavily on..." | Read more » | almost 6 years ago | |||
| Ag8n | " I've used a version of this method. We used it for lead and just for visual comparison. There was a link for it but it wouldn't work. It was th..." | Read more » | almost 6 years ago | |||
| Ag8n | " I'm downloading it now. Give me a day or two to go through it. Thanks! " | Read more » | almost 6 years ago | |||
| falbriard | " Checking several chemical measurement processes, I found an active reagent that applies, it is named: "Diphenylthiocarbazone (or Dithizone)". It ..." | Read more » | almost 6 years ago | |||
| Bronwen | "Lots of Public Labbers have used the Coqui (a simple DIY conductivity sensor)-- you can read more about it here: https://publiclab.org/wiki/coqui ...." | Read more » | almost 6 years ago | |||
| Ag8n | " You might be able to find some thing. Let's take it step by step. First, the only one of those metals that has any color in the Vis is chromium. ..." | Read more » | almost 6 years ago | |||
| falbriard | " @Ag8n , Thanks for the reply. There might exist different view angle, about the challenge and ways to tackle the problem. Your answer is right,..." | Read more » | almost 6 years ago | |||
| Ag8n | " First, using a spectrometer in the visible range ,by itself, normally isn't possible. You normally have to add chelating agents to make the metal..." | Read more » | almost 6 years ago | |||
| EdMallon | "Dr. Beddow's instrumentation students have been building our EDU logger for more than three years and, based on that experience, we've redesigned t..." | Read more » | almost 6 years ago | |||
| warren | "So just finally circling back here; I'm happy to post step-by-step photos and to put notes on all existing Coqui docs if we are pretty much OK with..." | Read more » | almost 6 years ago | |||
| DoraWest | "Pleasant post. I was checking continually this online journal and I am awed! To a great degree supportive data extraordinarily the last part I admi..." | Read more » | almost 6 years ago | |||
| warren | " Hi, Ed; thanks for reporting this; we'll take a look ASAP. I've opened an issue for you here if you'd like to provide any other information (for e..." | Read more » | almost 6 years ago | |||
| EdMallon | "For some months now I've been unable to upload images to comment posts in this research note. I've tried multiple different browsers. Though the im..." | Read more » | almost 6 years ago | |||
| eustatic | " Thanks for the write up! See more pics and our map at my other post! " | Read more » | almost 6 years ago | |||
| Ag8n | " There are several manufacturers of handheld XRF analyzers. And yes, they are usually cost limited. The cost can be reduced somewhat by renting, i..." | Read more » | almost 6 years ago | |||
| iragersh | " Not really relevant. I was on the PublicLab Open Hour call and I asked a question but can't remember the answer. I asked about finding lead on t..." | Read more » | almost 6 years ago | |||
| warren | "And the same page above lists Alternate EPA 3050B and 6010 methods for lead at $55. " | Read more » | almost 6 years ago |