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 | ||
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kanarinka | "No worries - if you can travel north a bit you should consider coming to the New England barnraising the weekend of June 5th -- http://publiclab.or..." | Read more » | over 10 years ago | |||
zengirl2 | "I live in Philly. I'm currently a LandLab Artist in Residence at the Schuylkill Center for Environmental Education. I'm hoping to study stormwater..." | Read more » | over 10 years ago | |||
kanarinka | "Thanks ZenGirl2 - a tutorial is definitely in the works as soon as we have a working prototype that people can use -- we are looking at June 5th fo..." | Read more » | over 10 years ago | |||
zengirl2 | "I noticed that you have a lot of Github info, but are you considering writing a tutorial? I'm interested in building a Riffle for Philly. Maybe yo..." | Read more » | over 10 years ago | |||
eymund | "You can read a good article here by Alex Robinson of the Times Ledger focusing attention on the Flushing Bay water quality challenges: http://www..." | Read more » | over 10 years ago | |||
warren | "@wattminder - have you seen some of the recent work with the Riffle, for conductivity monitoring of water? http://publiclab.org/wiki/riffle Also f..." | Read more » | almost 11 years ago | |||
unmanaged | "I would be glad to send some SS welding rods to you free of charge... you have access to the scope and tools I do not... I planted the garden today..." | Read more » | almost 11 years ago | |||
bgamari | "Over the last few days I've been busily reworking some aspects of the measurement. Now we have a much lower excitation voltage (currently 100mV, al..." | Read more » | almost 11 years ago | |||
JSummers | "Hi Don, I agree with Cversek that you need to keep the voltage difference small. you also might want to look at using graphite electrodes. The ki..." | Read more » | almost 11 years ago | |||
donblair | "Cversek -- wow, thank you!!! What a useful collection of info. Your note convinced Ben to add a dual op-amp to buffer the conductivity output, and..." | Read more » | almost 11 years ago | |||
kanarinka | "nice work - it's great to see that the conductivity measurement is coming along like this! " | Read more » | almost 11 years ago | |||
cversek | "What is the max amplitude of the voltages you are applying across the screws? If this gets too high you could be electrolyzing the water, other io..." | Read more » | almost 11 years ago | |||
donblair | "Just noticed -- in that last plot, it looks like the 'falling times' (top curve) start 'slumping', whilie the 'rising times' (bottom curve) seem re..." | Read more » | almost 11 years ago | |||
donblair | "And, as per our discussion elsewhere today, maybe we also want this material to go in a 'wiki' ... if you get a chance, Catherine, maybe you can d..." | Read more » | almost 11 years ago | |||
donblair | "Yay! " | Read more » | almost 11 years ago | |||
warren | "This is so exciting. " | Read more » | almost 11 years ago | |||
EdMallon | "Hi everyone, Just a quick note to say the first gen loggers survived their initial 3 month deployment giving us real water flow data, (6m depth,~ ..." | Read more » | almost 11 years ago | |||
flint | "I would be happy to take some advice as to how to best show off the strembot. " | Read more » | almost 11 years ago | |||
mathew | "well, there's no explanation on your website. By googling the name on the sensor name visible in a photo of yours, I can see that its an e-tape mi..." | Read more » | almost 11 years ago | |||
flint | "No, it uses a passive depth sensor strip. See website. " | Read more » | almost 11 years ago | |||
liz | "Hi Eymund, thanks for including my messy handwriting on post-it notes in your post! This is a fascinating story and i hope some NYCers reach out to..." | Read more » | almost 11 years ago | |||
mathew | "I'm wondering if you could post some more details or sketches of your design? is it using conductivity? " | Read more » | almost 11 years ago | |||
EdMallon | "Hi everyone. I just wanted to post an update as I have done some major code development for the Cave Pearl data logger recently, and a weeks wor..." | Read more » | almost 11 years ago | |||
eustatic | "cool " | Read more » | about 11 years ago |