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Author Comment Last activity Moderation
pdhixenbaugh "Isn't he doing not a 24 h average, but a week average in this case? That sounds like it would have merit. One thing I'm legitimately curious about..." | Read more » almost 6 years ago
shinchan "Pretty! This was a really wonderful post. itudomino " | Read more » almost 6 years ago
jeffalk "jiteovien: I realize you have put a considerable amount of effort into your project and are trying to do an excellent job. I believe you are exhib..." | Read more » almost 6 years ago
amirberAgain "Here is a google Colab recreating this: https://colab.research.google.com/drive/1rADQ9hbIEP-DO1hsLpVWAOz2wJu4SuwM " | Read more » almost 6 years ago
zengirl2 "@warren Cool experiment. So your dip in the top graph--do you think that is expressing less traffic due to start of holiday or is it raining there? " | Read more » almost 6 years ago
jiteovien "Hey @jeffalk . I am well aware that the Purple Air data sheets are logged in units µg/m3. I referenced airnow.gov that has conversion calculators f..." | Read more » almost 6 years ago
warren "OK, I'm removing the cover now, wow that seems to have worked! " | Read more » almost 6 years ago
warren " OK, it's every 10 minutes, and I just covered it: " | Read more » almost 6 years ago
warren "I can try this right now, at the Providence Purple Air sensor: https://www.purpleair.com/map?#12/41.8091/-71.4266 " | Read more » almost 6 years ago
cheapmcmbelt "MCM Medium Stark Lady Rabbit Odeon Studs Backpack In Burgundy Shop www.mcmbackpacksoutletonline.com Cheap MCM Backpacks Outlet Store and Buy MCM ..." | Read more » almost 6 years ago
jeffalk "I believe you are not quite correct in the determination of the AQI. First, the downloaded data from purple air gives concentrations, for pm2.5 th..." | Read more » almost 6 years ago
GreenFrogg "If its still a point. From my archive. The project I am involved in has changed to the SDS011. " | Read more » almost 6 years ago
jiteovien " " | Read more » almost 6 years ago
warren "Maybe @GreenFrogg might also have an idea? @jitovien could you post a pic of the case open as you received it in the mail? " | Read more » almost 6 years ago
xose "Hi! As I understand the sensor needs to be vertical and inside a ventilated dark case but I'm not sooooo sure. " | Read more » almost 6 years ago
warren "Just trying to collect up a list of resources related to co-location approaches as we discussed on #opencall -- https://publiclab.org/wiki/pm-dev ..." | Read more » almost 6 years ago
asnow "@Zengirl2 Hi Leslie! Do you have a parts list you can share for your version? We want to put one together here in Providence! @Bronwen @jiteovien " | Read more » almost 6 years ago
jiteovien "Question for @Schroyer , @Willie , @imvec , @nanocastro , @jefffalk or anyone else who is able to answer this question - I understand that the Shin..." | Read more » almost 6 years ago
mprof9 "Hi, I just would like to share a bit of work I did here: https://publiclab.org/notes/mprof9/11-07-2017/low-cost-sensor-for-air-quality-monitoring I..." | Read more » almost 6 years ago
warren "Hi, @sagarpreet -- do you think the sensor data @jiteovien referenced in http://www.dem.ri.gov/programs/air/air-monitoring.php would be possible to..." | Read more » almost 6 years ago
jeffalk "Some hopefully helpful comments: particulate matter in air is very different than lead concentration in soil. PM2.5 has a regional aspect. To see t..." | Read more » almost 6 years ago
warren " " | Read more » almost 6 years ago
warren "Great, also linking back to this prior post! https://publiclab.org/notes/mathew/04-22-2014/frac-sand-mining " | Read more » almost 6 years ago
warren "Adding a reference here - this looked pretty cool! https://www.reddit.com/r/microscopy/comments/8giinz/plm_red1_polarized_light_to_dso_chrysotile/..." | Read more » almost 6 years ago