Doug Day retweeted
Since 2021, CIRES researchers have helped lead a new air quality monitoring program, which includes 12 sites across the U.S. They set up a suite of instruments that collect high-resolution air samples day and night. Read more: cires.colorado.edu/news/roof…
@JgrpBoulder @dougchem
ALT White text over blue background: CIRES News. Rooftop science: Surveying Denver's air. CIRES researchers take part in national project to identify sources of pollution. Graphic on right: City buildings sit under smoggy sky.
Doug Day retweeted
Our big smoke volatility paper is out! We flew a thermal denuder and showed good agreement with lab VBS. This closes much of the gap in the OA/CO differences between airborne and ground studies
pubs.acs.org/doi/10.1021/acs…
Doug Day retweeted
CIRES' Guy Symonds, Doug Day, and Pedro Campuzano recently traveled overseas to support the NASA-led Airborne and Satellite Investigation of Asian Air Quality (ASIA-AQ) mission. @JgrpBoulder @CUBoulder
Learn more about ASIA-AQ: espo.nasa.gov/asia-aq
Doug Day retweeted
For the past 2 months, we have been participating in the ASIA-AQ @NASAAirborne mission espo.nasa.gov/asia-aq/conten…
to study AQ in Asia (Philippines, Korea, Taiwan, Thailand) with a focus on urban and biomass burning pollution.
Doug Day retweeted
A new preprint from our group ona method for calibrating AMS and EESI for complex mixtures (e.g. chamber secondary aerosol) by first separating the compounds with HPLC
Work led by @MindySchueneman, with @DougChem @Pedro_CUBoulder @SeonsikY @DKim_Chem @jljcolorado et al
Discussion open for comments: A multi-instrumental approach for calibrating two real-time mass spectrometers using high performance liquid chromatography and positive matrix factorization doi.org/10.5194/ar-2023-21
Doug Day retweeted
Come learn about our work on sources of SOA vs volatility classes in LA using a novel tubing+OFR technique!
Melissa Morris presents this work at #aaar2023, @AmericanAerosol Annual Meet tomorrow at 10:30am in Portland. Session "Aerosol Chem X: Gas-phase SOA Precursors" (ballroom)
Doug Day retweeted
Come learn about our work on quantification of anthropogenic and pyrogenic particulate bromine by AMS!
@DKim_Chem presents this work at #aaar2023, @AmericanAerosol Annual Meeting tomorrow 9:45am in Portland. Session: "12RA Remote and Regional Atmospheric Aerosols III" (Rm F150)
Doug Day retweeted
@jljcolorado presents work on the health impacts of GUV222-generated pollution under low ventilation, showing that it may be its most important limitation at #aaar2023, @AmericanAerosol Annual Meeting in Portland, OR.
Doug Day retweeted
1/ We just installed an (outdoor) volatile organic compound (VOC) real time instrument at the Denver site of @NSF @ASCENT_USA measurement network
We are very grateful to @tofwerk, who's lending it to us for a month & to @CDPHE who is our host
Here w/ the ASCENT instruments
Doug Day retweeted
At the @AF_Academy Subsonic Wind Tunnel, testing the internal flow field of the @NCAR_Science HIMIL aircraft inlet.
(As a function of air speed, pitch, roll)
Led by @Pedro_CUBoulder & @DKim_Chem, w/ support from @jljcolorado, in collaboration w/ Volkamer group
Doug Day retweeted
Covid is airborne and other diseases are too
News segment from KSL last night featuring our work @WeberStateU
Doug Day retweeted
Chemistry & yields of SOA from two atmospheric monoterpenes’ reaction with NO3 shows strong dependencies on OA, but not on peroxy radical fate (Rxn with RO2 vs HO2 vs NO3). Study led by @julianefry & @DougChem, with @CUBoulder, Reed, CIRES, NOAA.
go.acs.org/2yZ
Doug Day retweeted
Want to learn about new important SOA yields for BB emissions/chemistry? Want to hear about the new exciting analytical tech. we used to measure this? Come see @MindySchueneman @AmericanAerosol #AAAR2022 on Wed. at 4:30 pm in Ballroom C!
Doug Day retweeted
Our group (@SeonsikY & @DougChem) recently attended training on Aerodyne ToF-ACSM in prep. for deployment at our @ASCENT_USA network site in Denver
ToF-ACSM measures aerosol (PM) pollution composition in real time
Thanks @AerodyneRes @Benjamin_AtmChm & Anandi!
ASCENT Scientists from four institutions across the country learning how to operate an ACSM instrument during a training session hosted by @AerodyneRes. Thanks for having us! #ASCENT_USA #NSFfunded
Doug Day retweeted
ASCENT Scientists from four institutions across the country learning how to operate an ACSM instrument during a training session hosted by @AerodyneRes. Thanks for having us! #ASCENT_USA #NSFfunded
Doug Day retweeted
Getting our aircraft AMS to fit on the #GV has been...interesting, kudos to the rest of the CU aircraft team for a great job @DKim_Chem @HongyuGuo_ @DougChem @JgrpBoulder! Looking forward to more flying in the next weeks out of Kona, HI
Doug Day retweeted
Get up early to come see my eLightening presentation on Organic Nitrates in GEOS-Chem tomorrow morning at *8am* in eLightening Theater I in the General Atmospheric Chemistry eLightening Session to see what you missed during #ACCESSXVI #AGU2021 agu.confex.com/agu/fm21/meet…
Doug Day retweeted
Excited to share our latest paper in @EnvSciTech exploring the contribution of organic nitrates to organic aerosol over Korea using measurements from KORUS-AQ (@NASAAirborne) and CMAQ modeling (@EPAresearch) #AirQuality #urbanAQ pubs.acs.org/doi/pdf/10.1021…
