@ScottFarbman @citrusdriad @DisabledDoctor @NukitToBeSure Oh, looks like I was mixing it up with something different by the same main author on the same topic, specifically https://t.co/Il1fSIGGsW in the implications
@mskathleenquinn Actually it’s informed by peer-reviewed publications like the one below. Scientific assessments of chemical byproducts of UV began in 2022 at AAAR (now peer reviewed). “Decades of safety studies” dealt with other aspects of UV not this. ht
@mskathleenquinn @FarUVSterilray Risk-benefit of UV depends on many factors incl. usage, dose, duration (few minutes vs daily for hours). Research assessing safety of gaseous/aerosol byproducts of GUV (far UV) presented at AAAR (2022), now peer-reviewed an
Paper: Model Evaluation of Secondary Chemistry due to Disinfection of Indoor Air with Germicidal Ultraviolet Lamps GUV254 can significantly photolyze O3, generating OH radicals that oxidize VOCs & form secondary organic aerosol as a VOC-oxidation prod
RT @jljcolorado: 2/ We are doing measurements in a large chamber (21 m3, pic) & a real office. We also have a model of the chamber, the off…
RT @jljcolorado: 2/ We are doing measurements in a large chamber (21 m3, pic) & a real office. We also have a model of the chamber, the off…
RT @jljcolorado: 2/ We are doing measurements in a large chamber (21 m3, pic) & a real office. We also have a model of the chamber, the off…
RT @jljcolorado: 2/ We are doing measurements in a large chamber (21 m3, pic) & a real office. We also have a model of the chamber, the off…
RT @jljcolorado: 2/ We are doing measurements in a large chamber (21 m3, pic) & a real office. We also have a model of the chamber, the off…
@sarahksojourner That's the one we have tested the most already. See the paper and preprint in slide 2. My prelim take: useful for high risk situations and times. Not good idea for routine operation under low risk https://t.co/CiDqXChW0b
RT @jljcolorado: 2/ We are doing measurements in a large chamber (21 m3, pic) & a real office. We also have a model of the chamber, the off…
2/ We are doing measurements in a large chamber (21 m3, pic) & a real office. We also have a model of the chamber, the office, and general indoor environments. Example data and model results in our paper & preprint: https://t.co/4T8t9fkkiG https:
RT @adsquires: @Poppendieck @PrasadKasibhat1 This was the effect of 3ACH ("medium vent") from the @jljcolorado paper https://t.co/1ShkXSqLkc
@Poppendieck @PrasadKasibhat1 This was the effect of 3ACH ("medium vent") from the @jljcolorado paper https://t.co/1ShkXSqLkc
Paper: Model Evaluation of Secondary Chemistry due to Disinfection of Indoor Air with Germicidal Ultraviolet Lamps GUV254 can significantly photolyze O3, generating OH radicals that oxidize VOCs & form secondary organic aerosol as a VOC-oxidation prod
@JimRosenthal4 Well, according to the data in the paper, doubling the ventilation from low (0.3 ACH) would bring the SOA levels back down to what they were without UV. Medium (3ACH) drops it way below. https://t.co/PwST9W8rMi
RT @adsquires: No need to worry about ozone generation as an issue for germicidal UV under typical use. This graph shows there was higher o…
RT @adsquires: No need to worry about ozone generation as an issue for germicidal UV under typical use. This graph shows there was higher o…
No need to worry about ozone generation as an issue for germicidal UV under typical use. This graph shows there was higher ozone concentration *outdoors* (where there's sunlight!) than indoors produced by their UV sources. @JimRosenthal4 https://t.co/NE3XD
@cremieuxrecueil @pseudnonymus here’s a paper, not sure if it’s the one I originally saw https://t.co/yLvzdpaCIr and a substack article from one of the researchers https://t.co/uw1BqVAE8Z
@Bejabbers1 if you'd prefer the study itself https://t.co/APAdvcwbjo
@nuisancefilter @FurnessColin @jljcolorado No one is suggesting the spray go straight to people without human trials. It's progress. WRT UVGI, further study is needed to asses long term safety. https://t.co/kYb4Jhrqmz https://t.co/lizFotiGrk
RT @jljcolorado: 2/ This post builds upon the results of our just-published paper, in which for the first time we evaluate the indoor air q…
RT @kprather88: @SmartAirFilters @Mingle1232 @ScienceDaily @AmerChemSociety @jljcolorado Can you explain why you chose to call Jose "Profes…
RT @kprather88: @SmartAirFilters @Mingle1232 @ScienceDaily @AmerChemSociety @jljcolorado Can you explain why you chose to call Jose "Profes…
RT @kprather88: @SmartAirFilters @Mingle1232 @ScienceDaily @AmerChemSociety @jljcolorado Can you explain why you chose to call Jose "Profes…
@SmartAirFilters @Mingle1232 @ScienceDaily @AmerChemSociety @jljcolorado Can you explain why you chose to call Jose "Professor Jimenez"? https://t.co/kSWbVIDuYH
That's true, but it is still useful to know that ionizers create pollutants. Professor Jimenez's finding that UVC creates fine particles was news to me, so I thought worth highlighting. Knowledge I didn't have before his work! 👏 https://t.co/JiGerMMxFs
@mskathleenquinn @Mr_Inquisitr @ScienceDaily @AmerChemSociety Hmm, I'm happy to listen to critiques of my Tweet, but I'm not sure I'm following the logic here. Are you criticizing the academic researchers' experimental setup? It seems to me like rooms with
@kprather88 @Deb67088601 @ScienceDaily @AmerChemSociety Are you accusing me or the original researchers of slanting the results? I'm happy to hear critiques of the study, but the data is not mine. Here's the original peer-reviewed article: https://t.co/JiG
@Deb67088601 @kprather88 @ScienceDaily @AmerChemSociety Making it up? This is peer-reviewed academic research in the journal Environmental Science & Technology Letters by the wonderful @jljcolorado and colleagues. Check it our yourself: https://t.co/Ji
RT @joeyfox85: For the model, they proved something which has been my belief - that UV is not a legitimate substitute for ventilation. They…
RT @joeyfox85: For the model, they proved something which has been my belief - that UV is not a legitimate substitute for ventilation. They…
RT @joeyfox85: For the model, they proved something which has been my belief - that UV is not a legitimate substitute for ventilation. They…
RT @joeyfox85: For the model, they proved something which has been my belief - that UV is not a legitimate substitute for ventilation. They…
RT @joeyfox85: For the model, they proved something which has been my belief - that UV is not a legitimate substitute for ventilation. They…
RT @joeyfox85: For the model, they proved something which has been my belief - that UV is not a legitimate substitute for ventilation. They…
RT @joeyfox85: For the model, they proved something which has been my belief - that UV is not a legitimate substitute for ventilation. They…
RT @joeyfox85: For the model, they proved something which has been my belief - that UV is not a legitimate substitute for ventilation. They…
RT @jljcolorado: 9/ So how much PM is made by GUV in typical indoor environments? We will use the results of our paper (https://t.co/4T8t…
RT @jljcolorado: 2/ This post builds upon the results of our just-published paper, in which for the first time we evaluate the indoor air q…
RT @jljcolorado: 9/ So how much PM is made by GUV in typical indoor environments? We will use the results of our paper (https://t.co/4T8t…
RT @jljcolorado: 2/ This post builds upon the results of our just-published paper, in which for the first time we evaluate the indoor air q…
RT @jljcolorado: 2/ This post builds upon the results of our just-published paper, in which for the first time we evaluate the indoor air q…
RT @DavidElfstrom: New modeling shows #UVGI can create secondary compounds from contaminants, some may be harmful. My take: Best to add UV…
RT @physorg_com: Germicidal UV lamps: A trade-off between disinfection and air quality @ACSPublications https://t.co/GkO6SsCzMM https://t.c…
This looks interesting. Germicidal UV (whether 254nm or the new 222nm) is a great defence against airborne pathogens. But there is a lot we don't know about what the light does to indoor pollutants. @chpfrang @adam_milsom94
RT @jljcolorado: 2/ This post builds upon the results of our just-published paper, in which for the first time we evaluate the indoor air q…
RT @jljcolorado: 2/ This post builds upon the results of our just-published paper, in which for the first time we evaluate the indoor air q…
NEW: Model Evaluation of Secondary Chemistry due to Disinfection of Indoor Air with Germicidal Ultraviolet Lamps GUV254 can significantly photolyze O3, generating OH radicals that oxidize VOCs & form secondary organic aerosol as a VOC-oxidation produc
Model Evaluation of Secondary Chemistry due to Disinfection of Indoor Air with Germicidal Ultraviolet Lamps https://t.co/fHFtysINW9
RT @DavidElfstrom: New modeling shows #UVGI can create secondary compounds from contaminants, some may be harmful. My take: Best to add UV…
RT @jljcolorado: 9/ So how much PM is made by GUV in typical indoor environments? We will use the results of our paper (https://t.co/4T8t…
RT @jljcolorado: 2/ This post builds upon the results of our just-published paper, in which for the first time we evaluate the indoor air q…
RT @jljcolorado: 2/ This post builds upon the results of our just-published paper, in which for the first time we evaluate the indoor air q…
RT @jljcolorado: 2/ This post builds upon the results of our just-published paper, in which for the first time we evaluate the indoor air q…
RT @jljcolorado: 2/ This post builds upon the results of our just-published paper, in which for the first time we evaluate the indoor air q…
RT @DavidElfstrom: New modeling shows #UVGI can create secondary compounds from contaminants, some may be harmful. My take: Best to add UV…
RT @DavidElfstrom: New modeling shows #UVGI can create secondary compounds from contaminants, some may be harmful. My take: Best to add UV…
RT @jljcolorado: 2/ This post builds upon the results of our just-published paper, in which for the first time we evaluate the indoor air q…
RT @jljcolorado: 2/ This post builds upon the results of our just-published paper, in which for the first time we evaluate the indoor air q…
9/ So how much PM is made by GUV in typical indoor environments? We will use the results of our paper (https://t.co/4T8t9fkkiG), and focus on LOW ventilation, which is when disinfection is most helpful. It is also a very common situation in homes, school
2/ This post builds upon the results of our just-published paper, in which for the first time we evaluate the indoor air quality impacts of GUV disinfection. https://t.co/4T8t9fkkiG
RT @DavidElfstrom: New modeling shows #UVGI can create secondary compounds from contaminants, some may be harmful. My take: Best to add UV…
Model Evaluation of Secondary Chemistry due to Disinfection of Indoor Air with Germicidal Ultraviolet Lamps | Environmental Science & Technology Letters https://t.co/QEfa1anY92
RT @DavidElfstrom: New modeling shows #UVGI can create secondary compounds from contaminants, some may be harmful. My take: Best to add UV…
Smart context for where #UVGI can be added. Extremely impactful solution that could almost eliminate the spread of germs in buildings that ALSO have good ventilation & filtration plan. Engineers suggest not to use as a substitute for fixing decrepit HV
RT @DavidElfstrom: New modeling shows #UVGI can create secondary compounds from contaminants, some may be harmful. My take: Best to add UV…
RT @DavidElfstrom: New modeling shows #UVGI can create secondary compounds from contaminants, some may be harmful. My take: Best to add UV…
RT @DavidElfstrom: New modeling shows #UVGI can create secondary compounds from contaminants, some may be harmful. My take: Best to add UV…
RT @DavidElfstrom: New modeling shows #UVGI can create secondary compounds from contaminants, some may be harmful. My take: Best to add UV…
RT @DavidElfstrom: New modeling shows #UVGI can create secondary compounds from contaminants, some may be harmful. My take: Best to add UV…
RT @DavidElfstrom: New modeling shows #UVGI can create secondary compounds from contaminants, some may be harmful. My take: Best to add UV…
RT @DavidElfstrom: New modeling shows #UVGI can create secondary compounds from contaminants, some may be harmful. My take: Best to add UV…
New modeling shows #UVGI can create secondary compounds from contaminants, some may be harmful. My take: Best to add UV to spaces with moderate #ventilation & #filtration, not as a substitute. From Zhe Peng, @ShellyMBoulder, @jljcolorado: https://t.c
@jljcolorado @AmerChemSociety Looking forward to more on it! Makes sense that you'd want to avoid using any kind of potentially reactive technology in poorly ventilated spaces where there are potentially many contaminants to react with. https://t.co/iu0QO
RT @physorg_com: Germicidal UV lamps: A trade-off between disinfection and air quality @ACSPublications https://t.co/GkO6SsCzMM https://t.c…
RT @physorg_com: Germicidal UV lamps: A trade-off between disinfection and air quality @ACSPublications https://t.co/GkO6SsCzMM https://t.c…
RT @physorg_com: Germicidal UV lamps: A trade-off between disinfection and air quality @ACSPublications https://t.co/GkO6SsCzMM https://t.c…
RT @physorg_com: Germicidal UV lamps: A trade-off between disinfection and air quality @ACSPublications https://t.co/GkO6SsCzMM https://t.c…
Germicidal UV lamps: A trade-off between disinfection and air quality @ACSPublications https://t.co/GkO6SsCzMM https://t.co/cKyiWgvTqM
Model Evaluation of Secondary Chemistry due to Disinfection of Indoor Air with Germicidal Ultraviolet Lamps #ChemTwitter https://t.co/N2sNYZkkyu