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Author Comment Last activity Moderation
warren "i'll post more soon, but one is now totally blocked and it shows on the graph, but it's not rejecting the data. I'll let this run for a day. Then ..." | Read more » 10 months ago
warren "OK, i covered it more thoroughly and will wait a while to report back on what happens. " | Read more » 10 months ago
warren " OK testing this out now. Here's our sensor, on Cromwell St at our office: https://www.purpleair.com/map?582419|582421#13/41.81161/-71.41883 Note ..." | Read more » 10 months ago
warren " Hi! This sounds great, thanks for posting!!! " | Read more » 10 months ago
warren "This is great, thanks @kkoerner -- and interesting to see that they'll flag sensors. I wonder how much two would have to not correlate before it go..." | Read more » 10 months ago
warren " @julieta @nanocastro have either of you used 2 sensors in your DIY #plantower -based devices? #maca etc? " | Read more » 10 months ago
warren "And just linking to here, where the wiki page documents the 2 channels, which i would guess are from the 2 sensors? https://publiclab.org/wiki/purp..." | Read more » 10 months ago
warren "@CBarnes9 @samr @Tomp @OrionAllgaier @wu_ming2 @guolivar @BrandonFeenstra @kkoerner, any thoughts or info to share on exactly what the #purpleair d..." | Read more » 10 months ago
warren " Here's a good overview from EPA Region 1, New England: https://www3.epa.gov/region1/airquality/pm-aq-standards.html Although it's a bit jargony. " | Read more » 11 months ago
warren "Thanks for this! I guess you're also implying that the mass distribution also doesn't follow any simple or predictable trends? Like, is there no ge..." | Read more » 11 months ago
warren " Hi @samr, would you be able to repost your last questions on https://publiclab.org/purpleair#Questions, and we can then try to get the word out a ..." | Read more » 11 months ago
warren "Ah, and regarding What kind of particulate matter do these sensors work best in (ie they tend to preform worse in traffic-dominant pm than wood smo..." | Read more » 11 months ago
warren " Hi @nshapiro - these are all good questions, let me try to go through them one by one, thanks! the documentation needs to be vastly improved I'm..." | Read more » 11 months ago
warren "@mimiss @stevie -- what do you think of these options, and would any of them be interesting for classroom use too? " | Read more » 11 months ago
warren "Idea 3: You could buy or build a #simple-air-sensor and leave it for a few days in a few different locations, to see if it detects anything, and if..." | Read more » 11 months ago
warren "Idea 2: the #simple-air-sensor could be used alongside a more expensive device like a #purple-air, to give a more ambient awareness of the readings..." | Read more » 11 months ago
warren "Idea 1: While kicking off a collaborative session or training on air sensor placement, three or more Simple Air Sensors could be held by different ..." | Read more » 11 months ago
warren "@wmacfarl also did you do your workshop with these yet? " | Read more » 11 months ago
warren " Hi @sadieprego - would you like us to send you one of these? " | Read more » 11 months ago
warren " @nanocastro @cbarnes9 @ag8n @wu_ming2 @bigmit37 might also know a bit about this? " | Read more » 12 months ago
warren " https://ormantineusa.com/diffusion-tubes/ is in the US! Louise Francis mentioned the lab they work with gets them from Gradko -- https://www.grad..." | Read more » 12 months ago
warren " Just linking in your excellent question here: https://publiclab.org/questions/wu_ming2/02-02-2019/how-do-i-calculate-error-for-averages " | Read more » about 1 year ago
warren " Noting someone emailed me with this post: https://www.tipsbulletin.com/plants-that-clean-the-air/ " | Read more » about 1 year ago
warren "Made an issue here: https://github.com/publiclab/leaflet-environmental-layers/issues/93 " | Read more » about 1 year ago