David Eldredge @citlan.bsky.social · 01/04/2026Our team at the Spring 2026 @acs.org conference. We're really proud of our students and the momentum behind our ACS lab notebook pedagogy work, focused on documentation, data collection, & #GLP. Co-PI @alexdainis.bsky.social Learn more: www.linkedin.com/posts/activi... #STEM #ChemistryEducation 000
David Eldredge @citlan.bsky.social · 28/05/2025Ventilation in my lab yesterday. Maintained 22.9 #ACH 2nd hour. First hour 9.88 ACH (air changes per hour). 24 students + 1 instructor in a 450 m³ room. Pre-occupancy CO₂: 538 ppm First hour average peak: 615 ppm Second hour: 585 ppm See tinyurl.com/ACHcalc1 #Aranet4 #SAFEindoorAir #SchoolCO2 000
David Eldredge @citlan.bsky.social · 18/05/2025Why must they grow up? This was taken on 17 May 2008. My little girl is gone...now an adult, facing life with new challenges. Like the hour hand on a clock, you cannot see it move, but looking back, you realize it never stood still. 020
David Eldredge @citlan.bsky.social · 07/05/20257/n 👩🏫 Fellow STEM Instructors: Do you allow or require photo documentation in your labs? How do you address safety, equity, and data permanence? Would love to hear how others are blending visual tools with core scientific habits. #STEMEducation #ChemistryLab 100
David Eldredge @citlan.bsky.social · 07/05/20256/n 🔬 Real-World Tie-In From #Photo51 to modern lab audits, visual documentation is a cornerstone of scientific research and regulatory compliance. 110
David Eldredge @citlan.bsky.social · 07/05/20255/n 🔍 Why Photos (videos) Matter Document setups, procedural steps, and final results Create a verifiable, reproducible lab record Strengthen written entries in lab notebooks 110
David Eldredge @citlan.bsky.social · 07/05/20254/n This reflects real-world expectations in FDA-regulated and professional labs, where Good Documentation Practices (GDP) are essential. I emphasize: “If it’s not documented, it didn’t happen.” 100
David Eldredge @citlan.bsky.social · 07/05/2025Do you happen to have a "junk drawer" phone you can donate for a good cause? 📸 𝐖𝐡𝐲 𝐖𝐞 𝐔𝐬𝐞 𝐂𝐚𝐦𝐞𝐫𝐚𝐬 𝐢𝐧 𝐌𝐲 𝐂𝐡𝐞𝐦𝐢𝐬𝐭𝐫𝐲 𝐋𝐚𝐛𝐬 In my chemistry labs, students are required to document their experimental work, observations, actions. A Camera is one way to do it! #photo51 1/n 131
David Eldredge @citlan.bsky.social · 18/04/2025Do you still use paper lab notebooks in your lab courses—or have you gone digital? 🧪📓💻 A small research team (including some of my undergrads) is developing a new #ACS publication focused on modern lab notebook pedagogy in undergraduate science programs. We’d love your insights #ChemEd #LabNotebook 000
David Eldredge @citlan.bsky.social · 13/04/2025Special thanks to @lieslmcconchie.bsky.social for her persistence, diplomacy, and 930 days of advocacy that helped move this forward. #IAQ matters! assets.churchofjesuschrist.org/m4/60/m460hn... 021
David Eldredge @citlan.bsky.social · 04/04/2025🎥 Clip from the original 2 Dec 2022 broadcast. UVU will receive 75 #Aranet4 Home units next week. Students will collect data manually with the Home version. Thanks @mikeandersonksl.bsky.social for covering these vital air quality stories! #IAQ #CO2 #UTed #PublicHealth @aranethome.bsky.social 001
David Eldredge @citlan.bsky.social · 12/03/2025Aranet Spring Sale, direct w/Aranet. #Aranet4 #Aranet_Rn #Aranet_R & more! You end up paying about $23 in shipping making it exactly the same price on Amazon unless you use or send in your own shipping label. FedEx offers "One-Rate" 2-Day Air for ~$12 saftehnika21679.acemlnb.com/lt.php?s=370... 100
David Eldredge @citlan.bsky.social · 19/02/2025This book is meant to give us a clue to the human predicament. The setting of this passage? Ancient America 70 years prior to Christ's visit to the Americas after his resurrection (for those who believe in this book it seems to parallel today). 110
David Eldredge @citlan.bsky.social · 17/02/2025"Masks [N95s] and ventilation/filtration help prevent spread" Thank you! @kkjetelina.bsky.social Flu breaking records, measles, tuna recall, and federal workers fired open.substack.com/pub/yourloca... 162
David Eldredge @citlan.bsky.social · 12/02/2025Please come risk your health; donating blood in an airtight building where it is preached & taught that one can miraculously prevent the spread of an aerosol infection by simply washing hands. #FLUisAirborne #RSVisAirborne #COVIDisAirborne #TBisAirborne @erictopol.bsky.social @njbbari3.bsky.social 131
David Eldredge @citlan.bsky.social · 07/02/2025Stern argument with the respiratory technician. She was only donning a ASTM III (yellow surgical), She started giving me the droplet dogma & I just flat out, knee jerk reaction, said "Bull shi*!" She then donned a 3M Aura. @ihrice.bsky.social why doesn't Intermountain educate staff? 0154
David Eldredge @citlan.bsky.social · 05/01/2025What the two galaxies look like now as predicted by GPT, of course it will take another 114 million years for those on this planet to see it as it really is now. 050
David Eldredge @citlan.bsky.social · 21/12/2024Thanksgiving is 100x less stressful—and so much more enjoyable—than the whirlwind days leading up to Christmas. It shouldn’t be stressful! Trying to manager family funds, trying to please a wife and daughters, it’s no easy feat. Wishing everyone a joyful, peaceful & less stressful holiday season! 110
David Eldredge @citlan.bsky.social · 05/12/2024My dairy days were 1979 (age 12) to 1998 (BYU grad). We rinsed suction cups between cows, sterilized before/after each teat, and kept mastitis low: 3–4 cows per 100. Sharing these 1989 pics—great memories! 🐄✨ 000
David Eldredge @citlan.bsky.social · 04/12/2024Somehow, I deleted the rest of its response before I could capture a screenshot, it was pretty witty and clever and was not able to reproduce it. So, this was a final attempt. 😜 110
David Eldredge @citlan.bsky.social · 04/12/2024Sadly, vaccines are not "key" especially for influenza. They can help, but not key! #1 Always, always, aerosol is primary! Fixing ventilation/cleaning the air! #2 N95s! #3 vaccines #4 Hand hygiene, important, but last! If you are on LinkedIn a more robust post: www.linkedin.com/posts/activi... 031
David Eldredge @citlan.bsky.social · 03/12/2024The first national news piece I have ever seen where 'enclosed spaces with poor ventilation' is mentioned as important. #IAQ should always be #1! Sadly flu vaccines are not always as critical or helpful as #SAFEindoorAir, This year the flu jab might only be ~20% effective! 175
David Eldredge @citlan.bsky.social · 02/12/2024 "As the colder weather drives us all indoors to our poorly ventilated houses [meeting houses, schools, restaurants,] and workplaces, we will be undertaking an extraordinary gamble." When will government leaders, health officials really stress #IAQ #SAFEindoorAir? www.nytimes.com/2024/11/29/o... 020
David Eldredge @citlan.bsky.social · 01/12/2024Trump names loyalist Kash Patel to serve as FBI director 🤔 ksltv.com/711012/trump... 000
David Eldredge @citlan.bsky.social · 26/11/2024"A superb thread, UK's failure to respond to clear evidence about airborne infection in 2020 + 2021. & the ongoing failure to protect staff/patients in hospitals. So many continue to be infected and to develop Long Covid because of basic infection control failures" 👉 twitter.com/globalhlthtw... 020
David Eldredge @citlan.bsky.social · 25/11/2024The pandemic – questions around Government governance: David Osborn, a chartered occupational safety & health practitioner for 28 years; background in biochemistry, microbiology, epidemiology & emergency planning. 👉 www.pslhub.org/learn/corona... HT: Maarten De Cock 010
David Eldredge @citlan.bsky.social · 25/11/2024Why is Intermountain HC still pushing hand hygiene & hardly mention #SAFEindoorAir? Family practitioners are lining their pockets with this continued misinformation! Inhalation of infectious aerosols is the primary route! @andrewpaviamd.bsky.social 👉 intermountainhealthcare.org/blogs/protec... 000
David Eldredge @citlan.bsky.social · 24/11/2024A lot of cool and neat people here that I love and admire! 010
David Eldredge @citlan.bsky.social · 23/11/2024Aired 13 Dec 1979: This #BarneyMiller episode foreshadowed #GainofFunction research and the ethical dilemmas around #recombinant #DNA. Decades later, these discussions are more relevant than ever. #Fauci #ThrowbackTV "...well, kiss that grant goodbye!" dai.ly/x80q7lb 121
David Eldredge @citlan.bsky.social · 23/11/2024The #AranetRn is in a league of its own! Energizer Ultimate Lithium batteries mean years of use without replacing. Compact, portable, and syncs with the #Aranet4 App for precise time-stamped logs. Test your home, then lend it to friends! 🏠 182
David Eldredge @citlan.bsky.social · 23/11/2024It appears that #radon is inversely proportional to atmospheric pressure. You can only do this with one device, the #Aranet_Rn Sensor. It has both barometric pressure and radon displays (plus RH & temp). @danielmwoodruff.bsky.social @normundsbergs.bsky.social 131
David Eldredge @citlan.bsky.social · 23/11/2024Lower pressure makes it easy for radon to seep through the soil and into foundation cracks. Today we peaked at 8 pCi/L, and the upstairs office is reading 5.43 pCi/L! Opening up windows, but it's clear—time for serious mitigation efforts. Been "smoking a lot of 'cigs'" lately? I have! #IAQ 251
David Eldredge @citlan.bsky.social · 22/11/20241st negative review (balanced by a positive). I say nothing to students about RMP. If they’re happy, they may comment. If angry, they may comment. I likely miss the middle. Lab Notebook pedagogy is missing in most chem labs, shocks a few students. (This is Gen Chem II) TinyURL.com/WhyTheNotebook 010
David Eldredge @citlan.bsky.social · 18/11/20241 more lab for this semester, Thursday. I have two sections of Chem 1225. Started with 48 students total in both sections, now only 10 attending either section. A lot of illness kept the students from keeping up. It is a rigorous lab. Images: Some of the regents for iodination of acetone & me. 030
David Eldredge @citlan.bsky.social · 18/11/2024Just got my teeth cleaned at Prince Dental Group in Midway Utah. I saw was my hygienist without a mask & I asked if she would please put on an N95. She came back with a KN95. She also turned on an air cleaner. I had my #Aranet4 & #Aranet-R with me. X-ray spiked to 7.76 µSv/h @aranethome.bsky.social 062