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Air Sensors
question:air-sensors

## Choosing Sensors Often the first step is to look for a sensor for what you're hoping to measure. Below we're collecting info on different kinds of water quality sensors, and their: * cost * sensitivity/accuracy * links and documentation Can you afford a sensor? Can it detect what you're looking for? Where can you learn more about it? Read more about choosing a sensor **** ## Air sensor projects [wikis:air-sensors] [notes:air-sensor-projects] **** ## Questions [questions:air-sensors]...


Author Comment Last activity Moderation
MacLeod121 "Hello, The TCD is a thermal conductivity detector. It's an attempt at a " universal" detector- that is one that will detect most substances. The p..." | Read more » over 2 years ago
Ag8n "The TCD is a thermal conductivity detector. It's an attempt at a " universal" detector- that is one that will detect most substances. The problem..." | Read more » over 2 years ago
jjcreedon "Here's a portable GC, but has a TCD detector.. not the same. https://www.agilent.com/cs/library/brochures/5991-6041EN.pdf No GC/MS portable unit. I..." | Read more » over 2 years ago
jjcreedon "Katie- Just received your email. will respond there about Tonawanda Coke. re: the GC/MS its a standard EPA method. There is a special apparatus tha..." | Read more » over 2 years ago
Ag8n "Ok, it's a question of the process and how much you know about it. If you know everything that's likely to be produced in a plant ( say a refining..." | Read more » over 2 years ago
kgradow1 "My question is really about current workflows for gas chromatography / mass spectrometry for environmental monitoring. Part of what we are trying ..." | Read more » over 2 years ago
kgradow1 "Is GC-MS still typically done in a lab or are there versions that can be done in the field? " | Read more » over 2 years ago
Ag8n "VOC just tells you the amount of volatile organic carbon, not the specific molecule. If the voc is all octane, that's a totally different situatio..." | Read more » over 2 years ago
kgradow1 "@Ag8n gc/ms is the standard way that bucket samples have been analyzed in the past, but it's expensive compared to the cost of the bucket. I'm fam..." | Read more » over 2 years ago
Ag8n "We had a gas sampling valve on our gc/ms. This could be used for gas analysis, but was usually used for heart cutting samples from a hplc to the g..." | Read more » over 2 years ago
kgradow1 "@jjcreedon, thank you! Are you still using buckets today? I'd love to hear more about your experiences. I've been reading up on Tonawanda Coke ..." | Read more » over 2 years ago
jjcreedon "Here's our success story using "The Bucket" https://www.youtube.com/watch?v=EUuEFy5GwYY " | Read more » over 2 years ago
liz "Hi @Katie, i believe we have done something related, but not exactly what you are inquiring about. We have used video interviews to learn how peopl..." | Read more » over 2 years ago
Ag8n " The only other thing to point out- all these calculations assume the particles are spheres. We had particle surface area measuring equipment. T..." | Read more » over 3 years ago
wu_ming2 " I believe your first question was answered in general terms here: https://publiclab.org/questions/Ag8n/08-18-2018/pharmaceutical-class-100000-part..." | Read more » over 3 years ago
warren " @nanocastro @cbarnes9 @ag8n @wu_ming2 @bigmit37 might also know a bit about this? " | Read more » over 3 years ago
stevie " Hi all, great questions here. Pinging in a couple people who might be able to help provide some insight @cfastie @guolivar Best, Stevie " | Read more » over 3 years ago
jeffalk " Hi @OrionAllgaier, It's great to be curious and I'm sorry I can't answer your questions. But I am also curious. To my mind if one is trying to pr..." | Read more » over 3 years ago
midol "some PMS5003 distributors specify that Mie scattering is used " | Read more » over 3 years ago
guolivar " It all depends on what your objectives are. You'll notice that most air quality monitoring stations (the regulatory ones) have wind measurements w..." | Read more » over 3 years ago
Ag8n " Normally, in an open location, the national weather service (NWS) wind direction would be ok. But as you get into more urban locations, where bu..." | Read more » over 3 years ago
Ag8n "Please look at the data sheet for the purple air sensors. Specifically, the r2 data for the pm1.0, pm2.5, and pm 10. At least in the medical fiel..." | Read more » almost 4 years ago
warren "Just as we're speaking, @cfastie posts :smiley: https://publiclab.org/notes/cfastie/11-28-2018/nano-particle-monitoring ! " | Read more » almost 4 years ago
warren "@Cbarnes9 are you at all interested in something like this, where it'd be a PMS7003 connected to an Arduino to just get the data off as quickly as ..." | Read more » almost 4 years ago