particulate-sensing
particulate-sensing


Author Comment Last activity Moderation
nshapiro "Hi willie! Its a great project! I haven't read the Apte documentation, but mobile sensing does create some difficulties in terms of maintaining the..." | Read more » over 10 years ago
willie "Thanks Matt. This is definitely at its onset but I wanted to share the Apte inspiration. He did a number of things to ensure that the quality of th..." | Read more » over 10 years ago
mathew "That's pretty neat. How airflow will be controlled, as I would expect a moving vehicle to increase particulate measurements as a matter of the airf..." | Read more » over 10 years ago
warren "I was wondering if, since the silica kind of redirects the light (a little like fiber optic), if you could illuminate it with a directional light d..." | Read more » over 10 years ago
beadias "alxmjo: Sorry about the delay in replying. Here is the digikey part number for the fan we use: 563-1111-ND. We checked out your DIY set up - glad t..." | Read more » over 10 years ago
stevie "Hi Willie! The next OpenHour (http://publiclab.org/wiki/openhour) is on Air Quality and Air Quality monitoring tools. Would love to hear about this..." | Read more » over 10 years ago
mathew "Thank you so much for the clarification David! I'll work that into our summaries. its been hard to get a handle on exactly what is meant by that s..." | Read more » over 10 years ago
DavidMack "@amysoyka The Powermag graphic portrays the PM fractions based on source sampling techniques used for power plant emission sampling. The source sa..." | Read more » over 10 years ago
amysoyka "Sure - the source for that image is the link in the comment above it by the way. I like super-visual. Apparently so does Stephen Hawking - who app..." | Read more » over 10 years ago
warren "Wow Amy that is a SUPER visual explanation! Want to add it (with credit and maybe a "not open licensed" notice) to the particulates page? http://pu..." | Read more » over 10 years ago
amysoyka "Oh & this picture is just awesome too!: " | Read more » over 10 years ago
amysoyka "This article explains in some detail about the point Matthew just made: http://www.powermag.com/blog/pm2-5-more-than-just-dust/ " | Read more » over 10 years ago
stevie "Love this project. Would you be interested in sharing the idea on an OpenHour? we have one on Air Quality scheduled for July 28th! " | Read more » over 10 years ago
mathew "yeah, l their comments are moderated. mine is still in the queue. " | Read more » over 10 years ago
warren "Are comments moderated there? I don't see your comment but it's a very important clarification to make. Thanks, Mathew! " | Read more » over 10 years ago
mathew "I just posted a comment to that article. thanks for pointing it out: @donblair-- the author doesn't seem to understand the terminology in use. Th..." | Read more » over 10 years ago
amysoyka "Hi there, I was just wondering if you ever debunked the claims by AQICN: http://aqicn.org/experiments/what-is-the-dylos-monitor-actually-measuring/..." | Read more » over 10 years ago
mathew "The Speck team indicates that airflow is a big issue. they're controlling with a fan. If I move the Speck around just a little bit the values cha..." | Read more » over 10 years ago
alxmjo "Nice work. What sort of fan are you using to draw air across the sensor? Also, if anyone visiting this page would like to do something like this t..." | Read more » over 10 years ago
mathew "I found a scanner, the Canon 9000F and 9000F MKII, with an optical resolution of 9600dpi and an interpolated resolution of 19200dpi, or pixels 2.6μ..." | Read more » over 10 years ago
stevie "Neat Mathew! nice work. " | Read more » over 10 years ago
eustatic "Also, just want to repeat that corporate and government types are very sensitive to this kind of data. Even though I am tasked to work on water, I..." | Read more » over 10 years ago
eustatic "cool. My understanding is that, at least for coal dust (=mostly crystalline silica), most particles of interest fall in the PM10 category. GCMoni..." | Read more » over 10 years ago
mathew "Ok. Updated. the situation is better than I thought. A 4800dpi scanner could definitely give straight PM10 measurements, possibly with identifica..." | Read more » over 10 years ago