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 | ||
|---|---|---|---|---|---|
| Ag8n | "The recommended limit of pfoa + pfos is 70 parts per trillion (!). That's recommended, it's not enforced. The method of analysis is by LC/MS/MS. ..." | Read more » | over 6 years ago | |||
| xose | "Fantastic Max! I need to find a moment to make my first one!! ;D " | Read more » | over 6 years ago | |||
| xose | "@xose awards a barnstar to maxliboiron for their awesome contribution! " | Read more » | over 6 years ago | |||
| warren | ":+1: " | Read more » | over 6 years ago | |||
| MadTinker | "@cfastie FWIW I used a Kalman filter algorithm for my TDS analyses with data from a similar setup data logger setup. I believe that my original im..." | Read more » | over 6 years ago | |||
| cfastie | "What do you guys think, is it okay to use the mean instead of the median? @pdhixenbaugh, @MadTinker, @Shanlter, @rockets " | Read more » | over 6 years ago | |||
| vjpixel | "InfoAmazonia built a hardware that measure DO. The schematics are online: https://github.com/InfoAmazonia/rede-hardware " | Read more » | over 6 years ago | |||
| EdMallon | "While the logger core is generic, surface deployments tend to use the 4" housing (which is easy to build) while the underwater deployments (~ half ..." | Read more » | over 6 years ago | |||
| warren | "Wow, this is a great map! " | Read more » | over 6 years ago | |||
| Ag8n | "Amazon lists a microprocessor based circuit for about $46. That does not include the probe, case, or many other requirements. But it is a start. ..." | Read more » | over 6 years ago | |||
| warren | "We've requested a sample of v4 and also placed an initial order! We're going to have these precut by a coroplast cutting service (that does politic..." | Read more » | over 6 years ago | |||
| hpprinter1995 | "Nice And Informative Website. Please Keep Continue Such Kind Of Effort. Contact Us And Get On-Site HP Printer Support & HP Scanner Support. Our..." | Read more » | over 6 years ago | |||
| MaggPi | "Hi , Ufuoma, they all look good but I like V4 the best ( but keep top/bottom labels from 1 thru 3). The one with the numbered steps. Colors wor..." | Read more » | over 6 years ago | |||
| jiteovien | "@Maggpi Would love your feedback here " | Read more » | over 6 years ago | |||
| cfastie | "I keep my eye out for old Nalgene bottles which are tough enough to survive rough handling and hydraulic pressure. The lids are also strong so they..." | Read more » | over 6 years ago | |||
| warren | "I think this page may have some on moisture sensing! https://publiclab.org/notes/mathew/02-26-2015/sensors-in-soda-bottles " | Read more » | over 6 years ago | |||
| warren | "Hm, i can't seem to find it. i think it may have been buried in a comment thread somewhere! " | Read more » | over 6 years ago | |||
| pdhixenbaugh | "@warren great suggestion! It rains a lot here so I'm somewhat worried about that too. Where can I find that conversation? Are there any inexpensive..." | Read more » | over 6 years ago | |||
| warren | "There's also been some discussion of leaving the device in an upside-down bottle outside the water, say with the bottle taped to a long stake, and ..." | Read more » | over 6 years ago | |||
| pdhixenbaugh | "Chris, thanks so much for your input. That information about memory usage is invaluable. I will plan on the non-wireless route for now. Maybe with ..." | Read more » | over 6 years ago | |||
| warren | "Oh and also this one! https://publiclab.org/notes/warren/12-06-2017/help-document-how-to-connect-different-sensors-to-a-data-logger " | Read more » | over 6 years ago | |||
| warren | "This attempt to get people compiling a list might be helpful... esp if we can figure out a place to feature this -- https://publiclab.org/notes/wa..." | Read more » | over 6 years ago | |||
| cfastie | "I was impressed by the price ($12.90) of the DFRobot TDS sensor that MadTinker is working with so I bought a couple. It was easy to get it to work ..." | Read more » | over 6 years ago | |||
| xose | "Hi @jiteovien! So glad you're using the Coqui. At @imvec we're remixing right now a plug and play guide for teachers. Next week we'll be publishin..." | Read more » | over 6 years ago |