| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| nunglonpro | "@@! https://nunglon.pro/ " | Read more » | over 4 years ago | |||
| Bronwen | "Hi Nick- Question: are you hoping to come up with some ideas for people on the inside who are making their own masks, or are you thinking about or..." | Read more » | over 4 years ago | |||
| zolfikarali5 | "Perhaps the most now important and personally good place you’ll see on the system, it tells you what time you want to get to bed in order to make a..." | Read more » | almost 5 years ago | |||
| ritewayhtowing | "optical emanation spectrometers (OES) which are either versatile or stationary. The entirety of our OES models offer a significant level of exactne..." | Read more » | almost 5 years ago | |||
| stevie | "Hi! The EPA also has an Air Sensor Toolbox here: https://www.epa.gov/air-sensor-toolbox Someone mentioned the PurpleAir, there's more info on that..." | Read more » | almost 5 years ago | |||
| mimiss | "I wanted to share this research note from @jiteovien on how to evaluate low cost air monitors. I've also been looking into this Pocketlab air sens..." | Read more » | almost 5 years ago | |||
| lizdahl | "We use purple air monitors. You can find them at Purpleair.com. " | Read more » | almost 5 years ago | |||
| Ag8n | "Ok. If you are using the public labs spectrometer, it can be calibrated using the mercury lines in a compact florescent lamp (CFL). You could the..." | Read more » | almost 5 years ago | |||
| HealthCabinet | "Safe drinking water, sanitation, and hygiene (WASH) are fundamental to improving standards of living for people. The improved standards made possib..." | Read more » | almost 5 years ago | |||
| sound | "Hi thanks Stevie. I was thinking like commercial spectrometers consist of a sample holder for solids at an angle or one can put the solid sample at..." | Read more » | almost 5 years ago | |||
| stevie | "Hi! I don't know of a way to work with solid samples except if you can safely dissolve them in liquids. For example, here's a piece on dissolving u..." | Read more » | almost 5 years ago | |||
| cfastie | "`>> CCS-811 VOC sensors do not need regular calibration or initial calibration, as they use a different technique and not laser-scattering? ..." | Read more » | almost 5 years ago | |||
| sarasage | "Thank you so much for posting this! I purchased a couple of VOC detectors over the last week and wanted to know how the off-brand VOC detectors far..." | Read more » | almost 5 years ago | |||
| warren | "Ooh interesting. Yeah could imagine interesting things related to, say, cleaning products, gas stoves, even paints or dry but treated surfaces... p..." | Read more » | almost 5 years ago | |||
| cfastie | "Here is some new data from a gas sensor. This is a module with a CCS-811 sensor (provides an estimate of total volatile organic compounds [VOC]). T..." | Read more » | almost 5 years ago | |||
| cfastie | "The Adafruit VOC sensor module uses a CCS-811 VOC sensor. Modules with these sensors cost about half as much when purchased on eBay from sellers in..." | Read more » | almost 5 years ago | |||
| Ag8n | "By the way, the CyAN app gets images from satellites! " | Read more » | almost 5 years ago | |||
| Ag8n | "There is an APP from the EPA that allows for testing for cyanobacteria ( yes,this includes the bad algae). The app works on androids and is called..." | Read more » | almost 5 years ago | |||
| liz | "Here's an article in Slate which explains what "attribution science" is: https://slate.com/technology/2019/12/attribution-science-field-explosion-2..." | Read more » | almost 5 years ago | |||
| warren | "Same! " | Read more » | almost 5 years ago | |||
| annemolony413 | "Thanks for your advice Stevie. anne " | Read more » | almost 5 years ago | |||
| annemolony413 | "Thank you for your help kgradow1. Our main problem now is to prove that silica is in the quarry that exists so that we can stop its expansion to s..." | Read more » | almost 5 years ago | |||
| uj91635 | "It’s a great pleasure reading your post. Its full of information. The content of your post is awesome, Great work. Movies Rich.Com " | Read more » | almost 5 years ago | |||
| eustatic | "interested in this for sure " | Read more » | almost 5 years ago |