Richard Corsi, PhD, PE (Texas) Profile picture
Mar 6, 2022 13 tweets 5 min read Read on X
1/ I always go in for my asymptomatic PCR testing @ucdavis on Sunday mornings & take the time to walk around campus before & after. It is such a gift to work at a great university w/ such a wonderful campus. A few images taken on those walks today & previously .....
2/ Our beautiful arboretum - Such a nice play to walk away from the office to clear one's mind and get some exercise.
3/ Lots of non-human animals all around campus.
4/ The @UCDavisCOE Coffee Center. First of a kind for fundamental research on coffee.
5/ As a dog lover, this one always pulls at my heart strings ...

Faithful Partner statue in the middle of the #1 ranked School of Veterinary Medicine in the world.
6/ Sciences Lab Building
7/ Just a nice place along a walkway behind the athletic complex.
8/ A student dining commons w/ a lot of outdoor seating around 2nd floor and ground level.
9/ One of several student dorm complexes on campus (w/ windows that open). The interior courtyards of this complex are beautiful - like a place I might want to retire someday!
10/ Kemper Hall - One of three major engineering buildings and home to the @UCDavisCOE dean's office (my home away from home).
11/ The future Diane Bryant Engineering Student Design Center - an expansion from current 9,000 to 23,000 sq ft and place where students & student teams can design, build prototypes, engage in start-up companies and more. Excited about grand opening in 9 mos or so.
12/ A couple of evening photos:

Mondavi Center for the Performing Arts.
13/ Eggheads

It's been a very difficult two years. Let's all try to get along.

• • •

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More from @CorsIAQ

Jan 21
The "Sources" chapter of @theNASEM
report on "Health Risks of Indoor Exposure to Fine Particulate Matter & Practical Mitigation Solutions" is approx 60 pages and full of source-specific details. Check out the report here: (some highlights in thread)

nap.nationalacademies.org/catalog/27341/…
Sources considered:

(1) Ambient air (wide range of sources): penetration of fine PM from outdoor to indoor air

(2) Combustion processes: natural gas, propane, wood, oil, coal, candles, incense

Tobacco considered only for comparative purposes as much is already known/reported.
(3) Non-combustion heating processes: cooking, essential oil vaporizers, laser printers, e-cigarettes

Cooking is a very large source, whether heating w/ natural gas, propane, electric. Emissions specific to natural gas for cooking & other heating processes considered in (2)
Read 11 tweets
Jan 21
The "Sources" chapter of @theNASEM report on "Health Risks of Indoor Exposure to Fine Particulate Matter & Practical Mitigation Solutions" is approx 60 pages and full of source-specific details. Check out the report here: 👇 (some highlights in thread)

nap.nationalacademies.org/catalog/27341/…
Sources considered:

(1) Ambient air (wide range of sources):
penetration of fine PM from outdoor to indoor air

(2) Combustion processes:
natural gas, propane, wood, oil, coal, candles, incense

Tobacco considered only for comparative purposes as much is already known/reported.
(3) Non-combustion heating processes:
cooking, essential oil vaporizers, laser printers, e-cigarettes …

Cooking is a very large source, whether heating w/ natural gas, propane, electric .. Emissions specific to natural gas for cooking & other heating processes considered in (2)
Read 12 tweets
Jan 21
Why is indoor fine particulate matter important?

(Thread)

(1) Americans spend the vast majority of their time indoors. Prior to the pandemic, on average Americans lived to be 79 yo (now lower) & spend almost 70 of those years indoors, 54 years insides residences.
(2) Most fine particulate matter (particles with diameters of 2.5 microns or less) are inhaled indoors. This is true for fine particles of both indoor as well as outdoor origin. (more on sources of fine PM in a future tweet).
(3) There is ample evidence that exposure to fine particulate matter causes a range of adverse health effects (will summarize in a future tweet).
Read 6 tweets
Jan 20
Five overarching conclusions of the new @NASEM report on "Health Risks of Indoor Exposure to Fine Particulate Matter" (thread)

(1) There is ample evidence that exposure to indoor PM2.5 causes adverse health effects
(2) Disparities in population exposure to indoor PM2.5 of both outdoor and indoor origin exist

(3) Technological advancements yield great potential for quantifying & reducing exposures
(4) Effective and practical mitigation of exposure to PM2.5 in homes/schools is currently possible

(5) A lack of centralized responsibility for indoor PM2.5 policy is hindering reductions in population exposure and health benefits at scale
Read 4 tweets
Dec 16, 2023
1/ This CR Box (the one on the right!) has now totaled operational time equivalent to an entire in-classroom school year. Both it and its cohort of three other CR Boxes continue to perform with a high level of effectiveness across a wide range of particle sizes. Image
2/ Four CR Boxes were placed in different indoor settings on the UC Davis campus, from a relatively clean 4-person office suite w/ VCT flooring to a particle-challenged soils lab.
3/ Each CR Box consists of four 20" x 20" x 2" MERV-13 filters (3 boxes w/ filters from the same manufacturer and the 4th from a different manufacturer). A 20" x 20" box fan was used to draw air through each CR Box.
Read 20 tweets
Nov 26, 2023
Nominations for 2023 #CorsiRosenthalBox Awards are now being accepted!

Please retweet to spread the word!!!!

Reply to this tweet with nominations (self nominations highly encouraged!). Just do it!

Rules and #CRBoxAward categories are provided in this long thread. 1/
Nominations will be accepted until December 20th 2023. Awards will be announced early January 2024.

Some 2022 #CorsiRosenthalBox award winners showcased here: 2/corsirosenthalfoundation.org/showcase/
Judges will select from nominees (highest priority) as well as those not nominated but that we know made big splashes in 2023 & may have missed the deadline ....

And now the categories ......... 3/
Read 25 tweets

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