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
Ag8n "Further note-EC is electrical conductivity " | Read more » about 2 years ago
Ag8n "Especially in mixtures, not all soluble solids are conductive. So yes, you can dissolve (or sometimes suspend) something inert in water. We would..." | Read more » about 2 years ago
warren "This is very cool! I do wonder if TDS is going to be consistently correlated with conductivity -- i may just not be well informed but isn't it poss..." | Read more » about 2 years ago
Ag8n "Look up conductivity cell and wheatstone bridge Instead of feeding DC into the weatstone bridge, the audio signal is fed in. One leg of the wheats..." | Read more » about 2 years ago
alejobonifacio "Thanks for your suggestion @Ag8n, sounds very interesting to try. Anyway I have to be honest and say that I don't quite figure out how to do what y..." | Read more » about 2 years ago
Ag8n "It looks like the Coqui is a pretty well designed instrument. But, some of the pharmaceutical instruments would send the tone through a bridge. T..." | Read more » about 2 years ago
alejobonifacio "Hi @warren! Yes, 0.1-1 g/L is a useful range at least in rivers in this part of the world, in fact for this river test it worked well. I still have..." | Read more » about 2 years ago
liz "Thank you for this close and careful work <3 " | Read more » about 2 years ago
warren "Hi @alejobonifacio i wonder if there is an 'ideal' range if we can use resistors or capacitor sizes to shift that to our looked-for "search range" ..." | Read more » about 2 years ago
liamann67 "  Expert tips for writing bsb42015 answers easily When it comes to writing different assignments in leadership and management. Download the s..." | Read more » about 2 years ago
royshaw "Thank you for sharing this. It is great to know how the environmental test results to health standards worked. A clean environment reflects on the ..." | Read more » about 2 years ago
hspencer22 "Thanks for sharing this resource! Turns out, we are working with one of the researchers listed on here. I had no idea he was part of this organizat..." | Read more » about 2 years ago
liz "Network map in Little Sis by @marinaraHQ https://littlesis.org/oligrapher/7566-why-is-nys-dec-delaying-on-greenidge-air-permits " | Read more » about 2 years ago
liz "Hi @belkinsa it's amazing to hear from you and get a glimpse into your current work! Please keep us posted. I appreciate your tireless open science..." | Read more » about 2 years ago
Ag8n "The last heard, Ohio decided it was excessive levels of fertilizers that caused the problem. So, the solution was to limit when fertilizers could ..." | Read more » about 2 years ago
marinaraHQ "I think it would be great- really excited to work with you this coming weekend! I read over the materials you posted, I think the fishing bobs woul..." | Read more » about 2 years ago
EdMallon "The ones from Fisher Scientific and Thermo have notably better quality seals than no-name brand tubes. So if you are putting them somewhere swampy ..." | Read more » about 2 years ago
bhamster "Thanks for this update, @EdMallon! I read the full post you linked and laughed at "Pro-Minillennium Falcons." :smiley: The Falcon tube housing is n..." | Read more » about 2 years ago
bhamster "For finding a researcher to analyze health registry data and create a health study, the Center for Applied Environmental Science (CAES) might be a ..." | Read more » about 2 years ago
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 » about 2 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 » about 2 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 » about 2 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 » about 2 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 » about 2 years ago