particle-monitoring
particle-monitoring


Author Comment Last activity Moderation
fongvania "Here are instructions for a similar exercise, except using vaseline as the sticky substance: https://media.gm.com/content/dam/Media/images/US/Event..." | Read more » about 1 year ago
wibyepp0083 "Your honest feedback helps the SmileMakers company to improve its product & services. https://customersurveyz.onl/smilemakerssurvey/ " | Read more » about 2 years ago
liz ":point_up: Right on point Jackie, thank you for highlighting the context around agency actions, which seems to also include how much budget the age..." | Read more » about 2 years ago
jjcreedon "EPA enforcement in Tonawanda was a direct outcome of the Obama administration. I would suspect that there has been very little (or none?) since the..." | Read more » about 2 years ago
liz "Good point @eustatic. The previous examples are from EPA regions 9 and 10 (west coast). However there is also activity (mentioned briefly above) in..." | Read more » about 2 years ago
amirberAgain " At an optics conference, a while back Edmund Optics were giving away a lot of credit card sized polarizers, worthwhile reaching out and seeing if ..." | Read more » almost 4 years ago
warren " " | Read more » over 4 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 » over 4 years ago
mathew "the paper is a great substrate! cool exercise. " | Read more » over 4 years ago
liz "Sent in my a community member, here's a classroom example from 1991 for an activity to make sticky pads, install them around their school yard, ana..." | Read more » over 4 years ago
warren "Oh, great idea! Thanks! Also @stevie is not in right now but we can check with her too. Thanks!!! " | Read more » over 4 years ago
amirberAgain "@warren, I get that, this really is a short time and would be great to talk about doing so at some other opportunity. I commented to @ag8n 's post...." | Read more » over 4 years ago
warren "Thanks, @amirberAgain - i think the event might be a bit tight on time but we should try to get a follow-up e-meeting for the images we take during..." | Read more » over 4 years ago
amirberAgain "Do you want to schedule an e-meeting for image analysis as part of this event? " | Read more » over 4 years ago
amirberAgain "Saw this during the air pollution open call today, It looks really nice! any reason you used ImageJ and not Python + OpenCV? " | Read more » over 4 years ago
AdditiveFutures "stacked acrylic sheets. volumes determined through cutting thin sheets with a laser cutter.. " | Read more » almost 5 years ago
stevie "Hi there! This wiki page has a lot of information on it about the differences between passive and optical particulate matter monitors. https://publ..." | Read more » almost 5 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 » over 5 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 » over 5 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 » over 5 years ago
xose "Woooow!! Thanks for such a great documentation! " | Read more » over 5 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 » over 5 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 » over 5 years ago
richardbowman "Hello, "Cambridge" here (though I've actually moved now). You're right, a laser diode would certainly get rid of the chromatic issues. I suspect ..." | Read more » over 5 years ago