question:pm-monitoring
question:pm-monitoring


Author Comment Last activity Moderation
warren "Added a follow-up to collect some reference images of respirable silica particles, here: https://publiclab.org/questions/warren/02-22-2018/what-do-..." | Read more » almost 7 years ago
warren "Added a follow-up to collect some reference images of respirable silica particles, here: https://publiclab.org/questions/warren/02-22-2018/what-do-..." | Read more » almost 7 years ago
Ag8n "Ok, are talking about the difference between amorphous silica and crystalline silica? The amorphous is generally safe and crystalline is generally..." | Read more » almost 7 years ago
warren "Reading through Mathew's note, i don't see a clearly labeled one, but I imagine we could find one online somewhere, or in a peer-reviewed paper? " | Read more » almost 7 years ago
warren "Gretchen, is there an example image (showing rounded and jagged edges) we can use as a reference to compare to, when looking at images of dust? " | Read more » almost 7 years ago
shakti1418 "Track Package using UPS tracking number UPS drop off locations near me ups drop UPS Shipping Locations whatsapp gb download spotify premium apk 201..." | Read more » about 7 years ago
warren "Hi, Gretchen - what specific additional work based on Mathew's would help to answer this question? Can his proposed test using a particle of known ..." | Read more » about 7 years ago
warren "Also see https://publiclab.org/notes/mathew/10-07-2016/sizing-images-at-portland-science-hackday ! And this, where he tries to size a known diamet..." | Read more » about 7 years ago
warren "Also see https://publiclab.org/notes/mathew/10-07-2016/sizing-images-at-portland-science-hackday ! And this, where he tries to size a known diamet..." | 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 » 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