Discover and read the best of Twitter Threads about #aaar
Most recents (3)
In flight to #AAAR to present a poster w/ my kids “Making Aerosol Precautions for COVID-19 More Easily Accessible and Affordable to Everyone” tysm @HuffmanLabDU. On flight ✈️ I brought tools (CO2, 0.3 μm OPC) to see what’s up here at 30,000 feet 👣 (1/3) aaarabstracts.com/2022/view_abst… 
CO2 🧘♀️: compared to hair-raising reports of 2000+ ppm on other flights, CO2 has been relatively tame on jet bridge, while airplane ✈️ was on ground, and once in flight about 1000-1500 ppm. Still high relative to home 🏡 (800-1000 ppm) but not as high as I feared. (2/3)
0.3 μm particles⚡️ : much more interesting. After pilots 👩✈️🧑✈️ turned off seat belt sign, I ran a particle counter 💻 and it was ~10,000 per liter (typical for outdoor). An hour into flight it was ~300 which usually takes ~10 ACH at home. Inflight HEPA filtration at work! (3/3)
Seven Important Things to Know About Coronaviruses nyti.ms/33xWBPk gets "They’re heavier than other viruses" totally wrong. I respect the author's expertise in epidemiology, but he's dangerously wrong about airborne viruses.
The virus is 0.12 microns, but viruses do not float around naked in the air. They're in respiratory droplets that range widely in size, from <1 micron to 100s of microns. Where they go is determined by the droplet size; size of the virus itself is irrelevant.
If we were relying on waiting for a 0.12 micron virus to settle from a height of 6 feet to the ground, it would take >2 days!
#AAAR19 talk by Sumit S @CUEngineering from @marinavance research group talking on @IndoorChem #HomeChem. Black/brown carbon aerosol much higher for breakfast compared to making stir fry or chili.
@CUEngineering @marinavance @IndoorChem #AAAR19 almost 60% of the brown carbon aerosol indoors was from the cooking, the rest actually from outdoors, since the penetration factor for outdoor brown carbon indoors was 0.7.
@CUEngineering @marinavance @IndoorChem #AAAR I am sure you are wondering what they cooked for breakfast? an English version of tomato, sausage, eggs, toast, coffee.
