I am proud that @KerryKinney14 will be our FOURTH straight female president when she serves from 2024-2026.
I look forward to working with you all.
@JamesAMcGrath, @JamesAMcGrath and Tunga Salthammer discuss how money money should we have in reserve as a society.
@polsiewski congratulates @isiaq for tackling gender issues within the society. President Corinne Mandin noted that we now need to deal with geographic diversity and expand our reach to Africa/South America and India.
@CathNoakes. Perhaps we can increase reach by helping with visa costs? The past two years thrust IAQ into the policy eye. Can we do things differently now that is more policy facing? How do we get our research into policy? @isiaq make policy papers of its own? (YES!)
Derek Shendell: Perhaps put policy papers from Federal Agencies into Indoor Air Journal? @mattitakubel need to be pragmatic and make priorities.
@WBahnfleth how do you have engagement? @isiaq backed away from collaboration prior. Perhaps do more with IEQ-Global Alliance than just a webinar. Other person (I didn't hear) can we pay dues other than paypal? @isiaq: paypal is best global option.
@JamesAMcGrath if you have comments or questions please reach out to the @isaiq board (I agree, reach out to James... I am busy. Just kidding, reach out to me also).
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#IndoorAir2022. Toby Carter. How do ozone and hydrogen peroxide interact with surfaces and impact IAQ? Oxidants deposit on surfaces and can release secondary VOCs. Secondary emissions are a function of deposition velocity, reaction yield, oxidant concentration and volume. 1/3
Room relevant material surface to volume ratios are important (very different for offices and bedrooms). Most deposition for ozone was on plastic/paint/skin/soft fabrics. 2/3
Hydroxyl radical concentration vary with time of day and space (highest in kitchen). Concentrations of formaldehyde and decanal increased when modeled people were introduced as a result of hydrogen peroxide and ozone reactions. 3/3
#IndoorAir2022. @licinadusan. Plenary. Can we feel as good indoors and out? Can our buildings predictively respond to outdoor changes? Can our indoor environments not impact the ecological health of the planet? 1/14
Green certified buildings attempt to achieve these goals. hundreds of certifications globally. Certification schemes started during 1970s energy crisis (BREEAM). Existing certifications focus on building energy, less emphasis on occupants, IEQ and much less on human health.2/14
We consume huge amounts of energy on non-certified buildings and have poor occupant satisfaction (highest complaint is noise). Certification improve, but don't solve occupant satisfaction issues. Improvements still don't reach expected satisfaction of other industries. 3/14
#IndoorAir2022. Michael Scholand, Piet Jacobs. Is cooking with natural gas a public health risk? "This is like living with a tailpipe in your kitchen". Gas stoves emit NO2, CO, ultrafine particles. 1/
European effort to get data to support EU/UK actions. Emulating @RockyMtnInst study. What happens if you increase hydrogen content of gas to IAQ? "You can't regulate something if you can't measure it." 2/
Phase 2 is a field campaign in winter 22-23 in EU kitchens with gas and electric stoves. What component of IAQ is gas/versus cooking? 3/
#IndoorAir2022. Plenary Discussions. @CathNoakes, Giorgio Buonanno, Arsen Melikov. Lidia Morawska. Does Monkey Pox have airborne transmission? @CathNoakes "Quite Uncertain" But potential. 1) Before pox show, with fever. Not much data. 2) Lesions. Evidence of mouth lesions.1/6
3) skin flakes could transmit in places like bedding. Potential for airborne transmission (especially from lesions), but may not be a major route. But ventilation and airborne transmission guidelines should be followed in hospitals. 2/6
Lidia: "once it (monkey pox) is in the respiratory fluid there is no limit on what is going to happen." Giorgio: paper on classroom ventilation was important as it communicated to the epi world by using epi language from data engineering studies. 3/6
#IndoorAir2022. Arsen Melikov. Plenary. Increasing ventilation rates is expensive, requires energy. Air cleaning also use energy and placement can impact performance. CFD modeling shows variability in ventilation type impacts Infection probability by up to factor of 7. 1/
Personal ventilation is best, supply air as close to breathing activities as possible, e.g. air curtains. Should consider occupant activities when making recommendations. 2/
Source control via ventilation. Clean air at mouth. 3/
#indoorair2022. Giorgio Buonanno. Plenary. In 2020, airborne modeling tools "came out like mushrooms". Most all tools used Wells-Riley and box models and assumed accurate input parameters. 1/4
Quantum = dose of airborne particles required to cause infection in 63% of individuals. Experimental validation demonstrated that volume of particle emission is main contributor to uncertainty. 2/4
Retrospective study in Italy of >10,000 classrooms. Classrooms with ventilation 1.4-10 L/s/person and >10 L/s/p. Risk reduction was 80% in higher ventilated classroom. 3/4