| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| guolivar | "Smoke particles (and by smoke I mean combustion products) come in sizes all the way down to 1nm (0.001micron) and in shapes that make it very trick..." | Read more » | almost 7 years ago | |||
| warren | "Geoff from NASA Goddard found a good resource here: https://www.fs.fed.us/pnw/pubs/pnw_gtr251.pdf Apparently under 1 micron! Very small. " | Read more » | almost 7 years ago | |||
| stevie | "Hi there! still on this project? There's a Public Lab event coming up not too far from you in Morgantown WV. You should think about coming! www.pu..." | Read more » | about 7 years ago | |||
| gretchengehrke | "As Mathew and David pointed out, there aren't readily available low-cost techniques for distinguishing among potential sources of particulate matte..." | Read more » | about 7 years ago | |||
| DavidMack | "There are a few methods but like most scientific work it isn't always conclusive. Wind direction. A locally sited meteorological station with win..." | Read more » | about 7 years ago | |||
| sarasage | "I am trying to figure out the same question. So far, I have decided that the most accessible method seems to be using mapping technology to correla..." | Read more » | about 7 years ago | |||
| mathew | "There is no clear way to conclusively prove PM came from a facility, but there are several inferences that can be drawn. Saturation Monitoring ma..." | Read more » | about 7 years ago | |||
| Tinashe | "You don't state what happens with the 40 images taken. Are they stacked together for analysis or they are analysed individually. " | Read more » | about 7 years ago | |||
| mathew | "You're right I had a typo-- I should have deleted the PM2.5 field. fixed, thanks. The mine was operational, and they were not loading rail cars, b..." | Read more » | about 7 years ago | |||
| jeffalk | "Nicely done @matthew. I'm sure you all had a lot of fun. A few comments: Sometimes the text says the monitoring is for pm10 whereas the notes say ..." | Read more » | about 7 years ago | |||
| xose | "Woooow!! Thanks for such a great documentation! " | Read more » | about 7 years ago | |||
| mathew | "Absolutely, I should have mentioned them. Here are two: $26 Ambient Weather WM-35 (discontinued, new model is WM-2), has no recording functions ..." | Read more » | about 7 years ago | |||
| warren | "Wow, great post, @mathew! I was looking at the weather meter and it's around $500 used (dunno if there's a better place to buy it) -- https://www.a..." | Read more » | about 7 years ago | |||
| nanocastro | "Hi @xose. Muchas gracias.The multichannel looks good and it has more or less the same sensors (except for NH3). The documentations is still incompl..." | Read more » | about 7 years ago | |||
| xose | "@xose awards a barnstar to nanocastro for their awesome contribution! " | Read more » | about 7 years ago | |||
| xose | "Awesome!! Soon we'll update the Leptos station, a spanish cousin of your beautifull MACA ;) Would be great to meet digitally to exchange impression..." | Read more » | about 7 years ago | |||
| nshapiro | "thanks @nanocastro! if you have any questions for the PL community for the next steps please let us know :) " | Read more » | about 7 years ago | |||
| nanocastro | "Hi @liz. De nada, I think this data portal is quite new. Two years ago I contacted with the person in charge of the BsAs monitoring stations to ca..." | Read more » | about 7 years ago | |||
| liz | "Hi @nanocastro, thanks for cross-posting from your excellent wiki! Some open data friends mentioned this government open data portal for Buenos Air..." | Read more » | about 7 years ago | |||
| tuczap | "I'm using thingspeak to post my data online as Xively is not free anymore or at least you can't use free account to post all this data online. I'v..." | Read more » | about 7 years ago | |||
| jeffalk | "Matthew: Please look again at the "Current Mine Information" you posted with your question. It has "Opr. Begin Date" of 6/1/2013 for Hoffman Constr..." | Read more » | about 7 years ago | |||
| jeffalk | "Hi Matthew, We met briefly years ago when you visited with Mike O'Connor in Buffalo County Wisconsin. Since then I've hopefully learned a bit more..." | Read more » | over 7 years ago | |||
| mathew | "@marlokeno pointed me to the US Dept. of Labor's Mine Data Retrieval System which indicates that Great Northern is currently abandoned. This is an..." | Read more » | over 7 years ago | |||
| stevie | "@stevie awards a barnstar to gretchengehrke for their awesome contribution! " | Read more » | over 7 years ago |