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 | ||
|---|---|---|---|---|---|
| Suiris | "Hi cfastie. Thanks! The water I tested came from the faucet in Stockholm, Sweden. The water treating plants here have a hard time filtrating medici..." | Read more » | over 10 years ago | |||
| cfastie | "Excellent test. What do you think is in your water? Particulate matter? Or something dissolved, like a salt? Either way, if you boiled some down to..." | Read more » | over 10 years ago | |||
| warren | "I ended up trying some semi-opaque plastic but indeed the light has to be really strong as a result: http://publiclab.org/notes/warren/07-31-2013/m..." | Read more » | over 10 years ago | |||
| stoft | "Interesting experiments. Just be careful of the word "enhancement" as it is imprecise within this technical realm. Yes, averaging is useful (assumi..." | Read more » | over 10 years ago | |||
| warren | "Actually SW used to smooth at capture time. The other way to do it is not time-smoothing, but averaging in data from the extra dimension in each fr..." | Read more » | almost 11 years ago | |||
| eustatic | "cool " | Read more » | almost 11 years ago | |||
| warren | "Very cool! I'd love to help write an API macro which does this on the site... it could tag the spectrum with "smoothed" as well. " | Read more » | almost 11 years ago | |||
| philippg | "@warren: as sensitivity is my main concern, i'd really avoid masking even more intensity. i'm currently experimenting a bit with possible diffusors..." | Read more » | almost 11 years ago | |||
| warren | "Instead of a calibrated light source, what about scanning a sample and non-sample simultaneously, so that you can actually measure the input light ..." | Read more » | almost 11 years ago | |||
| philippg | "@straylight: 'How much water depth (or column depth) is typically analysed when looking for the chlorophyll-A using absorbance ? Is it in the order..." | Read more » | almost 11 years ago | |||
| webbhm | "I volunteer with LMVP (Lakes of Missouri Volunteer Program), and they conduct water quality monitoring. Their algae sampling is quite formal, wher..." | Read more » | almost 11 years ago | |||
| straylight | "wow, what a great sounding project Philipp. I like your thinking. Taking an average over 10 or more rows of the camera image is really good. The i..." | Read more » | almost 11 years ago | |||
| eustatic | "this is cool. I'm in the Gulf Coast of the United States. We have a large algal bloom that happens every year, as well as a lot of nitrate waste ..." | Read more » | almost 11 years ago | |||
| philippg | "hey wattminder, what kind of contaminants can be expected? if they have a specific optical signature, then they can be detected with optical spect..." | Read more » | almost 11 years ago | |||
| wattminder | "Hi Philip, This is very interesting and timely. California is now experiencing a huge boom in Hydraulic Fracturing, a practice that employs water a..." | Read more » | almost 11 years ago | |||
| warren | "I've begun a MapKnitter map here: https://mapknitter.org/map/view/east-providence-waste-plant but it's hard to piece this one together! it's a ver..." | Read more » | almost 11 years ago | |||
| warren | "I believe there's not yet a map-- lynn, can you give an exact location so people can start a mapknitter map and start placing images? Or would you ..." | Read more » | almost 11 years ago | |||
| Larzag | "what has been done on this so far? I see that there have been a lot of reviews of the images, but did not find a map for them on mapknitter. " | Read more » | almost 11 years ago | |||
| jenmansta | "Hey Liz et al! Just posted my on-the-ground, survey the sludge photos from December 15th w/ the publiclaboratory tag on flickr: https://www.flickr...." | Read more » | over 11 years ago | |||
| liz | "Hey Eymund, Did you get any sense of how deep the upper milky layer on the water was on the 15th and 16th? It does look totally different than the ..." | Read more » | over 11 years ago | |||
| liz | "Hi Jensta! We'd love to see your pictures! If you upload your pictures to your own Flickr site, and tag them "publiclaboratory", they will automati..." | Read more » | over 11 years ago | |||
| warren | "Really stunning images, you guys - super super sharp. And a breathtakingly different look to the water -- really concerning. " | Read more » | over 11 years ago | |||
| jenmansta | "This project was a lot of fun to participate in. Thanks PLOTS, Gowanus Canal Conservancy and Gowanus Dredgers Canoe Club for the balloon mapping da..." | Read more » | over 11 years ago |